Ulrich G. Hofmann

Former Research Associate

Research Interests

HUMAN-MACHINE-INTERFACING

NEURO-ENGINEERING

Goal: Bridging the gap between experimental and simulation approaches for the neuro- and medical sciences.

• Novel high-performance and realtime data acquisition systems for many channels (and neurons).

• Realtime visualization, analysis and data mining in huge neuronal data volumes.

• Modelling of big realistic neuron networks.

CV

2008 Professor, University of Lübeck

2008 Call for a professorate in Biomedical Engineering/Neural Engineering, Reykjavik University, Iceland

2007 Co-Founder of "pro-MedTec GmbH", Lübeck, medical robotics

2005/06 Co-Author "Graduate School Lübeck", DFG-Exzellenzinitiative

2003 Habilitation in Computer Science

1999-2000 Member of the Board of Directors of BioTuL AG, München, Germany

since 1999 Research Associate, University of Lübeck

1997-1998 Postdoctoral Scholar, Feodor-Lynen-Fellow, Division of Biology, California Institute of Technology, Pasadena, CA. "Technology for multisite neuronal recordings"

1996 Research Associate, HCM-Fellow, Institutionen för Fysikalisk Kemi, Åbo Akademi, Turku, Finland. "Ultra-microscopy and surface functionalization of semiconducors"

1993-1996 Research Assistant; Physics Department, Technische Universität München.

Biosensors, ultra-microscopy, ultra-thin films, bio-functionalization, cell culture

1993-1994 Co-founder and part-time manager of the scientific services company MiNT, München

1992-1993 Graduation in Physics, Diploma. Technische Universität München.

Thesis: " Polymerizable diacetylene lipids on the air/water interface"

1987-1992 Undergraduate studies in Technical Physics, Technische Universität München. Specializing in medical electronics and medical radiological physics.

1985-1987 Officer track in the German Army medical service

1985 High School Graduation

Publications

2015

Almajidy, R. K., Led, K. S. and Hofmann, U. G.: Novel near infrared sensors for hybrid BCI applications in Proceedings of SPIE, vol. 9536, 2015

@INPROCEEDINGS{Almajidy2015,
  author = {Rand K. Almajidy and Khang S. Led and Ulrich G. Hofmann},
  title = {Novel near infrared sensors for hybrid BCI applications},
  booktitle = {Proceedings of SPIE},
  year = {2015},
  volume = {9536},
  timestamp = {2015.08.24}
}

2014

Almajidy, R. K., Kirch, R. D., Christ, O. and Hofmann, U. G.: Estimating the Spatial Resolution of fNIRS Sensors for BCI Purposes in Design and Performance Validation of Phantoms Used in Conjunction with Optical Measurement of Tissue VI, vol. 8945, SPIE, Proc. of SPIE, San Francisco, California, United States, February, 2014

@INPROCEEDINGS{Almajidy2014,
  author = {Rand Kasim Almajidy and Robert D. Kirch and Olaf Christ and Ulrich
	G. Hofmann},
  title = {Estimating the Spatial Resolution of fNIRS Sensors for BCI Purposes},
  booktitle = {Design and Performance Validation of Phantoms Used in Conjunction
	with Optical Measurement of Tissue VI},
  year = {2014},
  editor = {Robert J. Nordstrom and Jean-Pierre Bouchard and David W. Allen},
  volume = {8945},
  series = {Proc. of SPIE},
  address = {San Francisco, California, United States},
  month = {February},
  publisher = {SPIE},
  timestamp = {2014.04.07}
}

2013

Almajidy, R. K. and Hofmann, U. G.: On the design of a multi-channel NIR system to monitor functional brain activity in Proceedings NIR 2013 16th International Conference on Near Infrared Spectroscopy, pp. 335-338, IRSTEA – France Institut National de recherche en sciences et technologies pour l’environnement et l’agriculture, La Grande-Motte, France, Jun 2-7, 2013

@INPROCEEDINGS{Almajidy2013,
  author = {R. K. Almajidy and U. G. Hofmann},
  title = {On the design of a multi-channel NIR system to monitor functional
	brain activity},
  booktitle = {Proceedings NIR 2013 16th International Conference on Near Infrared
	Spectroscopy},
  year = {2013},
  pages = {335-338},
  address = {La Grande-Motte, France},
  month = {Jun 2-7},
  publisher = {IRSTEA – France Institut National de recherche en sciences et technologies
	pour l’environnement et l’agriculture}}

2012

Xie, Y., Chen, L. and Hofmann, U. G.: Reduction of periodic noise in Fourier domain optical coherence tomography images by frequency domain filtering in Proceedings of Biemed Tech 2012; 57 (Suppl. 1), the 46th DGBMT Annual Meeting in Jena, 2012

@INPROCEEDINGS{chen-20121,
  author = {Yijing Xie and Lei Chen and Ulrich G. Hofmann},
  title = {Reduction of periodic noise in Fourier domain optical coherence tomography images by frequency domain filtering},
  booktitle = {Proceedings of Biemed Tech 2012; 57 (Suppl. 1),  the 46th DGBMT Annual Meeting in Jena},
  year = {2012}
}

Oung, S., Pohl, B. M. and Hofmann, U. G.: Preliminary design of a tendon-based anthropomorphic robotic hand in DGBMT, Jena, Germany, Sep., 2012

@INPROCEEDINGS{Stephen2012,
	author = {S. Oung and B. M. Pohl and U. G. Hofmann},
	booktitle = {DGBMT},
	title = {Preliminary design of a tendon-based anthropomorphic robotic hand},
	year = {2012},
	address={Jena, Germany},
	month = {Sep.},
	}

Pohl, B. M., Jungmann, J. O., Christ, O. and Hofmann, U. G.: Automated drill-stop by SVM classified audible signals in 34th Annual International Conference of the IEEE Engineering in Medicine & Biology Society, San Diego CA, USA, Sep., 2012

@INPROCEEDINGS{pohl2012a,
	author = {B. M. Pohl and Jan O. Jungmann and Olaf Christ and Ulrich G. Hofmann},
	booktitle = {34th Annual International Conference of the IEEE Engineering in Medicine & Biology Society},
	title = {Automated drill-stop by SVM classified audible signals},
	year = {2012},
	address={San Diego CA, USA},
	month = {Sep.},
	}

2011

Pohl, B. M., Schumacher, A. and Hofmann, U. G.: Towards an automated, minimal invasive, precision craniotomy on small animals in IEEE EMBS 5th Conference on Neural Engineering, Cancun, Mexico, Apr., 2011

@INPROCEEDINGS{Cranio,
	author = {B. M. Pohl and Anett Schumacher and Ulrich G. Hofmann},
	booktitle = {IEEE EMBS 5th Conference on Neural Engineering},
	title = {Towards an automated, minimal invasive, precision craniotomy on small animals},
	year = {2011},
	address={Cancun, Mexico},
	month = {Apr.},
	}

Murschall, C., Pohl, B. M. and Hofmann, U. G.: Shuttle supported insertion of polyimid microprobes - Targeting precision in a translucent brain model, in DGBMT, Freiburg, Deutschland, Oct., 2011

@inproceedings{shuttlePoly,
	author = {Ch. Murschall and B. M. Pohl and U. G. Hofmann},
	booktitle = {DGBMT},
	title = {Shuttle supported insertion of polyimid microprobes - Targeting precision in a translucent brain model,},
year = {2011},
address = {Freiburg, Deutschland},
	month = {Oct.},
}

Hazrati, M. K., Subramanian, V. and Hofmann, U. G.: A Four-Class Brain Computer Interface for Robot Control in ISSNIP Biosignals and Biorobotic Conference, Vitoria, Brazil, January, 2011

@INPROCEEDINGS{Hazrati1101,
author = {M. Kh. Hazrati and V. Subramanian and U. G. Hofmann},
title = {A Four-Class Brain Computer Interface for Robot Control},
booktitle = {ISSNIP Biosignals and Biorobotic Conference},
year      = {2011},
month     = {January},
date      = {6--9},
url = {http://www.brc2011.org/},
address = {Vitoria, Brazil}
}

2010

Olamat, A. E., Nkemasong, N., Pohl, B. M. and Hofmann, U. G.: Physical and FEM Simulation of Microprobe Insertion into Rat Brain in European Comsol Conference, Paris, France, Nov., 2010

@INPROCEEDINGS{FemSimCom,
	author = { A. E. Olamat and N. Nkemasong and B. M. Pohl, and U. G. Hofmann},
	booktitle = {European Comsol Conference},
	title = {Physical and FEM Simulation of Microprobe Insertion into Rat Brain},
	year = {2010},
        address = {Paris, France},
  	month = {Nov.},
}

Hammad, S., Löffler, S., Mankodiya, K., Krapohl, D., Pohl, B. M., Moser, A., Tronnier, V. and Hofmann, U.: Niotrode Array for Rodent Brain Recording in DGBMT, Rostock, Deutschland, Oct., 2010

@INPROCEEDINGS{niotrode,
	author = {S. Hammad and S. L{\"o}ffler and K. Mankodiya and D. Krapohl and B. M. Pohl and A. Moser and V. Tronnier and U.G. Hofmann},
	booktitle = {DGBMT},
	title = {Niotrode Array for Rodent Brain Recording},
	year = {2010},
	address ={Rostock, Deutschland},
	month = {Oct.}
	}

Xie, Y., Bonin, T., Löffler, S., Hüttmann, G., Tronnier, V. and Hofmann, U.: Fiber spectral domain optical coherence tomography for in-vivo rat brain imaging in SPIE's Photonics Europe (EPE10), Series Fiber spectral domain optical coherence tomography for in-vivo rat brain imaging, Brussels, 2010

@INPROCEEDINGS{XieEPE2010,
  author = {Y. Xie and T. Bonin and S. L{\"o}ffler and G. H{\"u}ttmann and V. Tronnier
	and U.G. Hofmann},
  title = {Fiber spectral domain optical coherence tomography for in-vivo rat
	brain imaging},
  booktitle = {SPIE's Photonics Europe (EPE10)},
  year = {2010},
  editor = {O. Dössel},
  series = {Series Fiber spectral domain optical coherence tomography for in-vivo
	rat brain imaging},
  address = {Brussels}
}

Hazrati, M., Erfanian, A. and Hofmann, U.: Extracted fractal components from electroencephalogram signal as features In brain computer interface in EURASIP Conference Biosignal 2010, Series Extracted fractal components from electroencephalogram signal as features In brain computer interface, Brno, Czech Republic, 2010

@INPROCEEDINGS{HazEurasipBiosig2010,
  author = {M. Hazrati and A. Erfanian and U.G. Hofmann},
  title = {Extracted fractal components from electroencephalogram signal as
	features In brain computer interface},
  booktitle = {EURASIP Conference Biosignal 2010},
  year = {2010},
  series = {Series Extracted fractal components from electroencephalogram signal
	as features In brain computer interface},
  address = {Brno, Czech Republic}
}

Mankodiya, K., Hassan, Y. A., Christ, O., Chamadiya, B. and Hofmann, U. G.: A miniaturized regional cerebral oximeter based on a smartphone processor in Biosignal 2010, Series A miniaturized regional cerebral oximeter based on a smartphone processor, Berlin, 2010

@INPROCEEDINGS{MankodiyaBioSig2010,
  author = {K. Mankodiya and Y. Ali Hassan and O. Christ and B. Chamadiya and U. G. Hofmann},
  title = {A miniaturized regional cerebral oximeter based on a smartphone processor},
  booktitle = {Biosignal 2010},
  year = {2010},
  series = {Series A miniaturized regional cerebral oximeter based on a smartphone
	processor},
  address = {Berlin},
  organization = {vde-DGBMT}
}

2009

Gehring, H., Westrup, z. L. M., Boye, S., Opp, A. and 26-00, P. S. P. U. . H. V. 1. (.: Transcranial doppler, EEG and SEP monitoring Applied Cardiopulmonary Pathophysiology, vol. 13, no. 3, pp. 224-236, 2009

@ARTICLE{Gehring2009,
  author = {H. Gehring and L. Meyer zu Westrup and S. Boye and A. Opp and U.
	Hofmann   Vol. 13 (3) 26-00, Pabst Science Publishers},
  title = {Transcranial doppler, EEG and SEP monitoring},
  journal = {Applied Cardiopulmonary Pathophysiology},
  year = {2009},
  volume = {13},
  pages = {224-236},
  number = {3}
}

Kipshagen, T., Graw, M., Tronnier, V., Bonsanto, M. and Hofmann, S. 2. 2. U. G.: Touch- and marker-free interaction with medical software in IFMBE Proceedings of the World Congress on Medical Physics and Biomedical Engineering, vol. 25, no. I-XIII, Springer, 2009

@INPROCEEDINGS{WC2009Graw,
  author = {T. Kipshagen and M. Graw and V. Tronnier and M. Bonsanto and U. G.
	Hofmann , 2009. 25(I-XIII), Springer.},
  title = {Touch- and marker-free interaction with medical software},
  booktitle = {IFMBE Proceedings of the World Congress on Medical Physics and Biomedical
	Engineering},
  year = {2009},
  volume = {25},
  number = {I-XIII},
  publisher = {Springer}
}

Ramrath, L., Vogt, S., Jensen, W., Schweikard, A. and Hofmann, U.: Robot-Assisted Electrophysiological Brain Mapping: A feasibility study Biomedizinische Technik / Biomedical Engineering, vol. 54, no. 1, pp. 8-13, Jan., 2009

@ARTICLE{Ramrath2009,
author = {L. Ramrath and S. Vogt and W. Jensen and A. Schweikard and U.G. Hofmann},
   title = {Robot-Assisted Electrophysiological Brain Mapping: A feasibility study},
   journal = {Biomedizinische Technik / Biomedical Engineering},
year = {2009},
  volume = {54},
  pages = {8-13},
  number = {1},
  month = {Jan.}
}

Nwe, T. H., Condurache, A. P., Simon, M., Mertins, A. and Hofmann, U.: Quantification of uterine peristalis in cine-MR images by block matching and optical flow in 11th International Congress of the IUPESM - Medical Physics and Biomedical Engineering World Congress, München, Sept., 2009

@INPROCEEDINGS{Condurache2009c,
  author = {Thet Htar Nwe and Alexandru P. Condurache and Martin Simon and Alfred Mertins and Ulrich Hofmann},
  title = {Quantification of uterine peristalis in cine-MR images by block matching and optical flow },
  booktitle = {11th International Congress of the IUPESM - Medical Physics and Biomedical Engineering World Congress},
  year = {2009},
  month = {Sept.},
  address = {München},
  organization = {IUPESM}
}

Mankodiya, K., Vogt, S., Kundu, A., Klostermann, M., Pohl, J., Ayoub, A., Gehring, H. and Hofmann, U. G.: Portable electrophysiologic monitoring based on the OMAP-family processors from a beginners prospective in IEEE-DSP 2009, Santorini, Greece, July 5-7, 2009

@INPROCEEDINGS{MankodiyaDSP2009,
  author = {K. Mankodiya and S. Vogt and A. Kundu and M. Klostermann and J. Pohl
	and A. Ayoub and H. Gehring and U. G. Hofmann},
  title = {Portable electrophysiologic monitoring based on the OMAP-family processors
	from a beginners prospective},
  booktitle = {IEEE-DSP 2009},
  year = {2009},
  address = {Santorini, Greece},
  month = {July 5-7}
}

Hofmann, U. G., Michalski, T., Tronnier, V. and Bonsanto, M. M.: Personalized Pain Diary on a Handheld Device in IFMBE Proceedings of the World Congress on Medical Physics and Biomedical Engineering, vol. 25, no. I-XIII, Springer, 2009

@INPROCEEDINGS{WC2009Hofmann,
  author = {U. G. Hofmann and T. Michalski and V. Tronnier and M. M. Bonsanto},
  title = {Personalized Pain Diary on a Handheld Device},
  booktitle = {IFMBE Proceedings of the World Congress on Medical Physics and Biomedical
	Engineering},
  year = {2009},
  volume = {25},
  number = {I-XIII},
  publisher = {Springer}
}

Klostermann, M., Christ, O., Mankodiya, K., Vogt, S. and Hofmann, U. G.: OMAP3 based signal processing for biomedical engineering teaching in EUSIPCO 2009, Glasgow, Scotland, Aug 24-28, 2009

@INPROCEEDINGS{KlostermannEUSIPCO2009,
  author = {M. Klostermann and O. Christ and K. Mankodiya and S. Vogt and U.
	G. Hofmann},
  title = {OMAP3 based signal processing for biomedical engineering teaching},
  booktitle = {EUSIPCO 2009},
  year = {2009},
  address = {Glasgow, Scotland},
  month = {Aug 24-28}
}

Krapohl, D. and Hofmann, U. G.: Microstimulation in The Brain – Does microdialysis influence the activated tissue volume? in Proceedings of the European Comsol Conference, Milano. Italy, October, 2009

@INPROCEEDINGS{KrapohlCOMSOL2009,
  author = {D. Krapohl and U. G. Hofmann},
  title = {Microstimulation in The Brain – Does microdialysis influence the
	activated tissue volume?},
  booktitle = {Proceedings of the European Comsol Conference},
  year = {2009},
  address = {Milano. Italy},
  month = {October}
}

Cirit, S., Penders, J., Ashouei, M., Hulzink, J., Nil, d. M., Huisken, J. and Hofmann, U. G.: Development of Real-Time EEG Application on an Ultra-Low-Power DSP in International Symposium on Code Generation and Optimization (CGO) -ODES: Workshop on Optimizations for DSP and Embedded Systems, pp. 1-6, Seattle, USA, July, 2009

@INPROCEEDINGS{Cirit-CGO-ODES,
  author = {Cirit, S. and Penders, J. and Ashouei, M.  and Hulzink, J. and de Nil, M.  and Huisken, J.  and Hofmann, U. G. },
  title = {Development of Real-Time EEG Application on an Ultra-Low-Power DSP},
  booktitle = {International Symposium on Code Generation and Optimization (CGO) -ODES: Workshop on Optimizations for DSP and Embedded Systems},
  year = {2009},
  pages = {1-6},
  address = {Seattle, USA},
  month = {July}
}

@INPROCEEDINGS{EEG_DWT,
  author = {S. Cirit and J. Penders and M. Ashouei and J. Hulzink and M. de Nil
	and J. Huisken and U. G. Hofmann},
  title = {Development of Real-Time EEG Application on an Ultra-Low-Power DSP},
  booktitle = {International Symposium on Code Generation and Optimization (CGO)
	-ODES: Workshop on Optimizations for DSP and Embedded Systems},
  year = {2009},
  address = {Seattle}
}

Mankodiya, K., Krapohl, D., Hammad, S., Xie, Y., Klinger, M. and Hofmann, U. G.: A simplified production method for multimode multisite neuroprobes in Intern‘l Conference on Neural Engineering 2009, Antalya, Turkey, 2009

@INPROCEEDINGS{MankodiyaNER2009,
  author = {K. Mankodiya and D. Krapohl and S. Hammad and Y. Xie and M. Klinger
	and U. G. Hofmann},
  title = {A simplified production method for multimode multisite neuroprobes},
  booktitle = {Intern‘l Conference on Neural Engineering 2009},
  year = {2009},
  address = {Antalya, Turkey},
  organization = {IEEE}
}

Opp, A., Hofmann, U. G., Boye, S., Dibbelt, L. and Gehring, H.: A Sensor for the Non-invasive Determination of Hemoglobin in Sampling Tubes in IFMBE Proceedings of the World Congress on Medical Physics and Biomedical Engineering, vol. 25, no. I-XIII, Springer, 2009

@INPROCEEDINGS{WC2009Opp,
  author = {A. Opp and U. G. Hofmann and S. Boye and L. Dibbelt and H. Gehring},
  title = {A Sensor for the Non-invasive Determination of Hemoglobin in Sampling
	Tubes},
  booktitle = {IFMBE Proceedings of the World Congress on Medical Physics and Biomedical
	Engineering},
  year = {2009},
  volume = {25},
  number = {I-XIII},
  publisher = {Springer}
}

2008

Melzer, A., Bushman, B. and Hofmann, U.: When Items Become Victims: Brand Memory in Violent and Nonviolent Games in ICEC 2008 - 7th International Conference on Entertainment Computing, vol. Lecture Notes in Computer Science - Entertainment Computing, Springer, Pittsburgh, 2008

@INPROCEEDINGS{Melzer2008,
author = {A. Melzer and B.J. Bushman and U.G. Hofmann},
   title = {When Items Become Victims: Brand Memory in Violent and Nonviolent Games},
   booktitle = {ICEC 2008 - 7th International Conference on Entertainment Computing},
   address = {Pittsburgh},
   publisher = {Springer},
   volume = {Lecture Notes in Computer Science - Entertainment Computing},
   year = {2008}
}

Chamadiya, B., Heuer, S., Hofmann, U. and Wagner, M.: Towards a capacitively coupled electrocardiography system for car seat integration in ECIFMBE 2008- IFMBE Proceedings, vol. 22, pp. 1217-1221, IFMBE Proceedings ISSN, Antwerp, 2008

 @INPROCEEDINGS{Chamadiya2008,
author = {B.K. Chamadiya and S. Heuer and U.G. Hofmann and M. Wagner},
   title = {Towards a capacitively coupled electrocardiography system for car seat integration},
   booktitle = {ECIFMBE 2008- IFMBE Proceedings},
   editor = {Sloten, J. Vander and Verdonck, P. and Nyssen, M. and Haueisen, J.},
   address = {Antwerp},
   publisher = {IFMBE Proceedings ISSN},
   volume = {22},
   pages = {1217-1221},
   year = {2008}
}

Löffler, S., Vogt, S., Hofmann, U. G. and Moser, A.: Striatal microstimulation in awake animals depends on NMDA receptor activity Biomed. Technik / Biomedical Engineering, vol. 53, no. Supp 1, pp. 41-243, 2008

 @ARTICLE{Loeffler2008, 
  author = {L{\"o}ffler, S. and Vogt, S. and Hofmann, U. G. and Moser, A.},
   title = {Striatal microstimulation in awake animals depends on NMDA receptor activity},
   year = {2008},  
   journal = {Biomed. Technik / Biomedical Engineering},
   volume = {53},
   number = {Supp 1},
   pages = {241-243}
   
}

Ramrath, L., Pohl, B. M., Loeffler, S., Mankodiya, K., Xie, Y., Hofmann, U. G. and Schweikard, A.: Single Fibre Optical Coherence Tomography for Brain Imaging - a Preliminary in Vitro Study in CURAC 2008 Proceedings der 7. Jahrestagung der Deutschen Gesellschaft für Computer- und Roboterassistierte Chirurgie., Leibzig, Deutschland, Oct., 2008

@INPROCEEDINGS{SingFibRam,
	author = {L. Ramrath and B. M. Pohl and S. Loeffler and K. Mankodiya and Y. Xie and U. G. Hofmann, and A. Schweikard},
	booktitle = {CURAC 2008 Proceedings der 7. Jahrestagung der Deutschen Gesellschaft f{\"u}r Computer- und Roboterassistierte Chirurgie.},
	Title = {Single Fibre Optical Coherence Tomography for Brain Imaging - a Preliminary in Vitro Study},
	Year = {2008},
	address = {Leibzig, Deutschland}}

Bleil, M., Linder, R., Opp, A., Boye, S., Gehring, H. and Hofmann, U.: Online-Classification of Capnographic Curves Using Artificial Neural Networks in ECIFMBE 2008- IFMBE Proceedings, vol. 22, pp. 1096-1099, IFMBE Proceedings ISSN, Antwerp, 2008

 @INPROCEEDINGS{Bleil2008,
author = {M. Bleil and R. Linder and A. Opp and S. Boye and H. Gehring and U.G. Hofmann},
   title = {Online-Classification of Capnographic Curves Using Artificial Neural Networks},
   booktitle = {ECIFMBE 2008- IFMBE Proceedings},
   editor = {Sloten, J. Vander and Verdonck, P. and Nyssen, M. and Haueisen, J.},
   address = {Antwerp},
   publisher = {IFMBE Proceedings ISSN },
   volume = {22},
   pages = {1096-1099},
   year = {2008}
}

Darolti, C., Bodensteiner, C., Mertins, A. and Hofmann, U. G.: Local Region Descriptors for Active Contours Evolutions IEEE Transactions on Image Processing, vol. 17, no. 12, pp. 2275-2288, 2008

@ARTICLE{DaroltiTIP08,
 author = {Cristina Darolti and Christoph Bodensteiner and Alfred Mertins and Ulrich G. Hofmann},
 title = {Local Region Descriptors for Active Contours Evolutions},
 journal = {IEEE Transactions on Image Processing},
 volume = {17},
   number = {12},
pages={2275-2288},
 year = {2008}
}

Vogt, S., Klostermann, M., Kundu, A., Andruschenko, S. and Hofmann., U.: Hardware-in-the-loop testbed for closed-loop brain stimulators in ECIFMBE 2008- IFMBE Proceedings, vol. 22, pp. 128-1132, IFMBE Proceedings ISSN, Antwerp, 2008

@INPROCEEDINGS{Vogt2008,
author = {S. Vogt and M. Klostermann and A. Kundu and S. Andruschenko and U.G. Hofmann.},
   title = {Hardware-in-the-loop testbed for closed-loop brain stimulators},
   booktitle = {ECIFMBE 2008- IFMBE Proceedings},
   year = {2008},
   editor = {Sloten, J. Vander and Verdonck, P. and Nyssen, M. and Haueisen, J.},
   address = {Antwerp},
   publisher = {IFMBE Proceedings ISSN },
   volume = {22},
   pages = {1128-1132}
   
}

Maciak, A., Seidel, G., Meyer-Wiethe, K., Kier, C. and Hofmann, .. U.: Bolus Harmonic Imaging zur automatischen Erkennung ischämiebedingter Perfusionsdefizite im Gehirn Ultraschall in der Medizin, in Automatic Detection of Perfusion Deficits with Bolus Harmonic Imaging, vol. 29, pp. --, 2008

@ARTICLE{Maciak2008,
  author = {Maciak, A. and Seidel, G. and Meyer-Wiethe, K. and Kier, C. and Hofmann,
	U.G.},
  title = {Bolus Harmonic Imaging zur automatischen Erkennung ischämiebedingter
	Perfusionsdefizite im Gehirn},
  journal = {Ultraschall in der Medizin},
  year = {2008},
  volume = {29},
  pages = {--},
  abstract = {Zusammenfassung
	
	
	Ziel: Die Diagnose zerebrovaskulärer Erkrankungen stützt sich zunehmend
	auf den Einsatz ultraschallbasierter Verfahren. Das kontrastmittelgestützte,
	transkranielle Bolus Harmonic Imaging (BHI) hat hierbei einen hohen
	Stellenwert. Die Auswertung der aufgezeichneten Bildsequenz erfolgt
	durch geübte Ärzte jedoch manuell und ist somit zeitaufwendig. Das
	Ziel der hier beschriebenen drei Verfahren ist die sichere, vollautomatische
	Erkennung von Perfusionsdefekten des Gehirns. Material und Methoden:
	Mit dem BHI werden Ultraschallbildsequenzen aufgezeichnet, die die
	Kontrastmitteldynamik im Gehirn wiedergeben. Diese Bilder werden
	mit drei verschiedenen Verfahren automatisch ausgewertet. Zum einen
	wird ein regelbasiertes System beschrieben, welches aus den aufgezeichneten
	Ultraschallbildern Parameterbilder extrahiert und diese mithilfe
	von Expertenwissen nach perfundierten und minderperfundierten Gehirnarealen
	klassifiziert. Zum zweiten erfolgt die Klassifikation der Gehirngebiete
	unüberwacht mit dem K-Means-Verfahren. Hierzu wird jedes der Parameterbilder
	als eine Dimension des zu klassifizierenden Merkmalsraums betrachtet,
	sodass eine unüberwachte Segmentierung der minderperfundierten Gehirnbereiche
	möglich ist. Drittens wird die gesamte Bildsequenz anhand der Kontrastmitteldynamik
	pixelweise klassifiziert. Hierbei kann darauf verzichtet werden,
	Parameterbilder extrahieren zu müssen. In allen drei Fällen ist es
	im Anschluss notwendig, die beim HI auftretenden Streifenartefakte
	automatisch zu erkennen. Abschließend wird ein Aussagenbild generiert,
	in dem die gefundenen Minderperfusionen markiert sind. Ergebnisse:
	Die drei Verfahren wurden auf einem 26 Patienten umfassenden Kollektiv
	klinisch validiert. Hierbei hat sich herausgestellt, dass insbesondere
	die Segmentierung anhand der Kontrastmitteldynamik dazu geeignet
	ist, Minderperfusionen automatisch zu erkennen. Es konnte auf diesem
	Patientenkollektiv eine Sensitivität von 100 % bei einer Spezifität
	von 100 % erreicht werden. Schlussfolgerungen: Alle drei Verfahren
	erscheinen geeignet, ischämische Gehirngebiete zu erkennen. Hierbei
	liefert die Klassifikation von Gehirngebieten nach der Kontrastmitteldynamik
	die besten Ergebnisse, da sie robust gegenüber Rauschen ist. Zudem
	ist es das schnellste Verfahren, da die Extraktion von Parameterbildern
	entfällt. Es ist notwendig, die Sensitivität und Spezifität auf einem
	größeren Patientenkollektiv zu validieren. Eine sichere, vollautomatische
	Erkennung von Perfusionsdefekten direkt am Patientenbett scheint
	somit möglich zu sein.
	
	Abstract
	
	
	Purpose: The diagnosis of ischemic stroke relies increasingly on the
	usage of ultrasound-based methods. One of the recent methods is the
	transcranial, contrast agent-based Bolus Harmonic Imaging (BHI) method.
	The captured image sequence is manually examined by clinical experts
	thus resulting in a time-consuming procedure. The purpose of this
	study is to evaluate three different methods to analyze BHI image
	sequences automatically for the detection of ischemic brain tissue.
	Materials and Method: BHI captures an image sequence that provides
	information on the dynamic behavior of the ultrasound contrast agents.
	This image sequence is analyzed using three different procedures.
	First a system relying on expert knowledge is used to determine perfusion
	defects. This procedure requires parametric images, which are previously
	extracted from the image sequence. The parameter images are then
	categorized by an unsupervised classification method in well-perfused
	and ischemic tissue by regarding the parametric images as features
	describing the perfusion. Thirdly, the whole image sequence can be
	interpreted as a pixel-by-pixel behavior out of contrast agents.
	The dynamic curve of each pixel can be automatically classified as
	perfused and ischemic tissue by the K-Means method without extracting
	parametric images. In all three cases a closing step is necessary
	for the accurate interpretation of the results. Transcranial ultrasound
	imaging produces typical stripe artifacts that have to be detected
	and eliminated. A result image is then created and provides a conclusion
	about perfusion reduction in brain tissue. Results: All three methods
	have been validated on the basis of 26 patients by clinical experts.
	The segmentation on the contrast agent kinetics has proven to be
	most effective. According to our patient database, it provides the
	highest detection accuracy, resulting in a sensitivity of 100 % and
	a specificity of 100 %. Conclusion: The presented methods seem to
	be adequate for detecting ischemic brain tissue. The classification
	of contrast agent kinetics provides the best results and has further
	advantages. It is robust with respect to noise and the calculation
	is fast because the extraction of parametric images is omitted. The
	very high sensitivity and specificity must be validated in a larger
	patient population. Reliable and automated detection of perfusion
	defects at the bedside seems to be possible.},
  booktitle = {Automatic Detection of Perfusion Deficits with Bolus Harmonic Imaging},
  doi = {10.1055/s-2008-1027190},
  refid = {101055S20081027190}
}

Krapohl, D., Bonin, T., Gebhardt, A., Mankodiya, K. and Hofmann, U. G.: A new integrated optical and electrophysiological sensor Biomed. Technik / Biomedical Engineering, vol. 53, no. Supp 1, pp. 26-128, 2008

@ARTICLE{Loeffler2008, 
  author = {Krapohl, D. and Bonin, T. and Gebhardt, A. and Mankodiya, K. and Hofmann, U. G.},
   title = {A new integrated optical and electrophysiological sensor},
   year = {2008},   
   journal = {Biomed. Technik / Biomedical Engineering},
   volume = {53},
   number = {Supp 1},
   pages = {126-128}
   
}

2007

Kier, C., Cyrus, C., Seidel, G., Hofmann, U. G. and Aach, T.: Segmenting the substantia nigra in ultrasound images for early diagnosis of Parkinson s disease International Journal of Computer Assisted Radiology and Surgery, vol. 2, no. S1, pp. S83-S85, June, 2007

@ARTICLE{Kier2007,
  author = {Christian Kier and Christina Cyrus and Günter Seidel and Ulrich G.
	Hofmann and Til Aach},
  title = {Segmenting the substantia nigra in ultrasound images for early diagnosis
	of Parkinson's disease},
  journal = {International Journal of Computer Assisted Radiology and Surgery},
  year = {2007},
  volume = {2},
  pages = {S83--S85},
  number = {S1},
  month = {June},
  doi = {10.1007/s11548-007-0086-4},
  keywords = {parkinson}
}

Maciak, A., Kier, C., Seidel, G., Meyer-Wiethe, K., Hofmann, U. and Aach, T.: Robuste Ermittlung parametrischer Bilder für die Ultraschall-Perfusionsbildgebung basierend auf einem Modell der Boluskinetik von Kontrastmitteln Biomedizinische Technik. Ergänzungsband., vol. 52, pp. Session A2, Berlin, 2007

@ARTICLE{Maciak2007b,
  author = {Adam Maciak and Christian Kier and G{\"u}nter Seidel and Karsten Meyer-Wiethe
	and Ulrich Hofmann and Til Aach},
  title = {Robuste Ermittlung parametrischer Bilder für die Ultraschall-Perfusionsbildgebung
	basierend auf einem Modell der Boluskinetik von Kontrastmitteln},
  journal = {Biomedizinische Technik. Ergänzungsband.},
  year = {2007},
  volume = {52},
  pages = {Session A2},
  address = {Berlin},
  issn = {0939-4990},
  keywords = {perfuscope}
}

Moshidis, E., Matthäus, L., Besirevic, A., Schulz, R., Tronnier, V., Bonsanto, M. M. and Hofmann, U. G.: Navigated intraoperative ultrasound imaging system in BMT 2007, de Gruyter, Aachen, 2007

@inproceedings{MoshidisBMT07,
   Author = {Moshidis, Emmanouil and Matth{\"a}us, Lars and Besirevic, Armin and Schulz, Reinhard and Tronnier, Volker and Bonsanto, Matteo M. and Hofmann, Ulrich G.},
   Title = {Navigated intraoperative ultrasound imaging system},
   BookTitle = {BMT 2007},
   Address= {Aachen},
   Publisher = {de Gruyter},
      Year = {2007} }

Darolti, C., Bouchard, R., Farke, S., Condurache, A. P. and Hofmann, U.: Measurement of Surgical Motion with a Marker Free Computer Vision Based System International Journal of Computer Assisted Radiology and Surgery, vol. 2, S1, pp. S213, 2007

@ARTICLE{DaroltiCars,
  author = {Cristina Darolti and Ralf Bouchard and Stefan Farke and Alexandru P. Condurache and Ulrich Hofmann},
  title = {Measurement of Surgical Motion with a Marker Free Computer Vision
	Based System},
  journal = {International Journal of Computer Assisted Radiology and Surgery},
  year = {2007},
  volume = {2, S1},
pages = {S213},
  owner = {darolti},
  timestamp = {2007.07.13}
}

Jensen, W., Yoshida, K. and Hofmann, U. G.: In vivo implant mechanics of single-shaft microelectrodes in peripheral nervous tissue in 3rd Int'l Conference on Neural Engineering, IEEE, Hawaii, USA, 2007

@inproceedings{Jensen07,
   Author = {Jensen, W. and Yoshida, K. and Hofmann, U. G.},
   Title = {In vivo implant mechanics of single-shaft microelectrodes in peripheral nervous tissue},
   BookTitle = {3rd Int'l Conference on Neural Engineering},
   Editor = {Akay, Metin},
   Address= {Hawaii, USA},
   Publisher = {IEEE},
      Year = {2007} }

Hiller, A., Loeffler, S., Haupt, C., Litza, M., Hofmann, U. G. and Moser, A.: Electrical High Frequency Stimulation Induces GABA Outflow in Freely Moving Rats J. Neurosci. Methods, vol. 159, no. 2, pp. 286-290, 2007

@article{Hiller2007,
   Author = {Hiller, A. and Loeffler, S. and Haupt, Ch. and Litza, M. and Hofmann, U. G. and Moser, A.},
   Title = {Electrical High Frequency Stimulation Induces GABA Outflow in Freely Moving Rats},
   Journal = {J. Neurosci. Methods},
   Volume = {159},
   Number = {2},
   Pages = {286-290},
      Year = {2007} }

Maciak, A., Kier, C., Seidel, G., Meyer-Wiethe, K. and Hofmann, U. G.: Detecting Stripe Artifacts in Ultrasound Images Journal of Digital Imaging, 2007

@ARTICLE{Maciak2007a,
  author = {A. Maciak and C. Kier and G. Seidel and K. Meyer-Wiethe and U. G.
	Hofmann},
  title = {Detecting Stripe Artifacts in Ultrasound Images},
  journal = {Journal of Digital Imaging},
  year = {2007},
  doi = {10.1007/s10278-007-9049-0},
  url = {http://www.springerlink.com/content/rm058658xpv37ph2/?p=fbae785cac25420b93dd3c1a6b1428a9&pi=0}
}

Maciak, A., Kier, C., G., S., Meyer-Wiethe, K. and Hofmann, .. G.: Automatische Erkennung von Ischämien mit Bolus Harmonic Imaging in Bildverarbeitung für die Medizin 2007, pp. 81-86, Springer-Verlag, München, 25-27 March, 2007

@INPROCEEDINGS{Maciak2007,
  author = {Maciak, A. and Kier, C. and Seidel G. and Meyer-Wiethe, K. and Hofmann,	U. G.},
  title = {{Automatische Erkennung von Isch{\"a}mien mit Bolus Harmonic Imaging}},
  booktitle = {Bildverarbeitung f{\"u}r die Medizin 2007},
  year = {2007},
  editor = {A. Horsch, T. M. Deserno, H. Handels, H.-P. Meinzer, T. Tolxdorf},
  pages = {81-86},
  address = {M{\"u}nchen},
  month = {25-27 March},
  publisher = {Springer-Verlag},
  isbn = {3540710905}
}

Condurache, A. P., Hahn, T., Scharfschwerdt, M., Misfeld, M., Hofmann, U. G. and Aach, T.: Automatic measuring of quality criteria for heart valves in Medical Imaging 2007: Image Processing, SPIE, San Diego, CA, February, 2007

@InProceedings{Condurache07,
	title = {Automatic measuring of quality criteria for heart valves},
	booktitle = {Medical Imaging 2007: Image Processing},
	author = {A. P. Condurache and T. Hahn and M. Scharfschwerdt and M. Misfeld and U. G. Hofmann and T. Aach},
	publisher = {SPIE},
	address = {San Diego, CA},
	month ={February},
	year = {2007},
}

Gritsun, T., Engler, G., Moll, C., Engel, A., Kondra, S. and Hofmann, L. R. U. G.: A simple microelectrode bundle for deep brain recordings in 3rd Int'l Conference on Neural Engineering, IEEE, Hawaii, USA, 2007

@inproceedings{Gritsun07,
   Author = {Gritsun, T. and G. Engler and Moll, C.K.E. and Engel, A.K. and Kondra, S. and Hofmann, L. Ramrath
Ulrich G.},
   Title = {A simple microelectrode bundle for deep brain recordings},
   BookTitle = {3rd Int'l Conference on Neural Engineering},
   Editor = {Akay, Metin},
   Address= {Hawaii, USA},
   Publisher = {IEEE},
      Year = {2007} }

Darolti, C., Mertins, A. and Hofmann, U. G.: A Fast Level-Set Method for Accurate Tracking of Articulated Objectswith An Edge-Based Binary Speed Term in Advanced Concepts for Intelligent Vision Systems, no. 4678, pp. 828-839, Springer, Lecture Notes in Computer Science, August, 2007

@INPROCEEDINGS{DaroltiACIVS,
  author = {Cristina Darolti and Alfred Mertins and Ulrich G. Hofmann},
  title = {A Fast Level-Set Method for Accurate Tracking of Articulated Objectswith
	An Edge-Based Binary Speed Term},
  booktitle = {Advanced Concepts for Intelligent Vision Systems},
  year = {2007},
  editor = {Jacques Blanc-Talon, Wilfried Philips, Dan Popescu und Paul Scheunders},
  number = {4678},
  series = {Lecture Notes in Computer Science},
  pages = {828-839},
  month = {August},
  publisher = {Springer},
  owner = {darolti},
  timestamp = {2007.07.13}
}

Mankodiya, K., Ayoub, A., Vogt, S., Opp, A., Gönne, M., Linder, R., Gehring, H. and Hofmann, U. G.: A design study on a multisensory cerebral monitor in BMT 2007, de Gruyter, Aachen, 2007

@inproceedings{MankodiyaBMT07,
   Author = {Mankodiya, K.  and Ayoub, A.  and Vogt, S.  and Opp, A.  and G{\"o}nne, M.  and Linder, R.  and Gehring, H.  and Hofmann, U. G. },
   Title = {A design study on a multisensory cerebral monitor},
   BookTitle = {BMT 2007},
   Address= {Aachen},
   Publisher = {de Gruyter},
      Year = {2007} }

2006

Gritsun, T., Litza, M., Hiller, A., Moser, A. and Hofmann, U.: Semichronic, collocated deep brain stimulation and multisite recording in rats in 2006 International Conference on Microtechnologies in Medicine and Biology, IEEE, Mai, 2006

@Conference{GritsunICMMB06,
  author    = {Gritsun, T. and Litza, M. and Hiller, A. and Moser, A. and Hofmann, U.G.},
  title     = {Semichronic, collocated deep brain stimulation and multisite recording in rats},
  booktitle = {2006 International Conference on Microtechnologies in Medicine and Biology},
  year      = {2006},
  month     = { Mai}
  publisher = {IEEE},
}

Hofmann, U., Moll, C., Engler, G., Engel, A., Bör, D. H. M., Thomas, U. and Detemple, P.: Multisite Microelectrodes for use in Human Deep Brain Stimulation 2006

@INPROCEEDINGS{Hofmann2006,
  author = {U.G. Hofmann and C.K.E. Moll and G. Engler and A.K. Engel and M. B{\"o}r, D. H{\"u}hl and U. Thomas and P. Detemple},
  title = {Multisite Microelectrodes for use in Human Deep Brain Stimulation},
  year = {2006},
}

Jensen, W., Yoshida, K. and Hofmann, U.: Implant Mechanics of ACREO Silicon Electrodes in Rat Cerebral Cortex IEEE Transactions on Bio-Medical Engineering, Januar, 2006

@Article{Jensen06,
  author  = {Jensen, W. and Yoshida, K. and Hofmann, U.G.},
  title   = {Implant Mechanics of ACREO Silicon Electrodes in Rat Cerebral Cortex},
  journal = {IEEE Transactions on Bio-Medical Engineering},
  year    = {2006},
  month   = { Januar},
}

Eberhardt, F., Bonnemeier, H., Lipphardt, M., Hofmann, U., Schunkert, H. and Wiegand, U.: Atrial Near-Field and Ventricular Far-Field Analysis by Automated Signal Processing at Rest and During Exercise vol. 11, Issue 2, Wiley, Ann Noninvasive Electrocardiol., März, 2006

@Book{EberhardtArtrial2006,
  title     = {Atrial Near-Field and Ventricular Far-Field Analysis by Automated Signal Processing at Rest and During Exercise},
  publisher = {Wiley},
series    = {Ann Noninvasive Electrocardiol.},
  year      = {2006},
  author    = {Eberhardt, F. and Bonnemeier, H. and Lipphardt, M. and Hofmann, U.G. and Schunkert, H. and Wiegand, U.},
  volume    = {11, Issue 2},
  month     = { März}
}

Hofmann, U., Folkers, A., Mösch, F., Malina, T., Menne, K., Kindlundh, M., Thomas, U., Hoehl, D., Biella, G., Schutter, E. D., Fagerstedt, P., Yoshida, K., Jensen, W., Norlin, P. and Curtis, d. M.: A novel high channel-count system for acute multi-site neuronal recordings 2006

@InProceedings{ Hofmann06,
	title = {A novel high channel-count system for acute multi-site neuronal recordings},
	author = {U.G. Hofmann and A. Folkers and F. M{\"o}sch and T. Malina and K.M.L. Menne and M.G. Kindlundh and U. Thomas and D. Hoehl and G. Biella and E. De Schutter and P. Fagerstedt and K. Yoshida and W. Jensen and P. Norlin and M. de Curtis},
	year = {2006}
}

2005

Christ, O., Otto, S., Barth, E. and Hofmann, U. G.: Towards the detection of microsleep events in a driving simulator vol. 50, no. Supplementary vol 1, Biomedizinische Technik, 2005

@Book{Christ_BMT05,
  title  = {Towards the detection of microsleep events in a driving simulator},
  year   = {2005},
  author = {Christ, O. and Otto, S. and Barth, E. and Hofmann, U. G.},
  volume = {50},
  number = {Supplementary vol 1},
  series = {Biomedizinische Technik},
}

Burmeister, O., Litza, M., Nitschke, M. and Hofmann, U.: Synchronous stereo-video and biosignal recording – a basic setup for Human-Computer-Interface applications in Conference Proceedings. 2nd International IEEE EMBS Conference on Neural Engineering, IEEE, Arlington, VA, USA, 2005

@InProceedings{Burmeister2ndInternIEEE2005,
  author    = {Burmeister, O.P. and Litza, M.G. and Nitschke, M. and Hofmann, U.G.},
  title     = {Synchronous stereo-video and biosignal recording – a basic setup for Human-Computer-Interface applications},
  booktitle = {Conference Proceedings. 2nd International IEEE EMBS Conference on Neural Engineering},
  year      = {2005},
 address   = {Arlington, VA, USA},
  publisher = {IEEE},
}

Condurache, A. P., Essah, E., Reske, A., Seiwerts, M., Busse, H., Aach, T. and Hofmann, U.: Robust rib cage segmentation in CT image series using active contour models. in Proceedings of BMT-2005, pp. 421--422, VDE, Nürenberg, Germany, September 14--16, 2005

@InProceedings{Condurache05f,
	title = {Robust rib cage segmentation in {C}{T} image series using active contour models.},
	booktitle = {Proceedings of BMT-2005},
	author = {A. P. Condurache and E.A. Essah and A. Reske and M. Seiwerts and H. Busse and T. Aach and U.G. Hofmann},
	publisher = {VDE},
	address = {N{\"u}renberg, Germany},
	pages = {421--422},
	month = {September 14--16},
	year = {2005}
}

Kondra, S., Yew, C., Ahmad, F. and Hofmann, U. G.: Prototype of a patient monitoring device based on an embedded RISC/DSP system Januar, 2005

@Article{KONDRA_RISCDSP_BMT05,
  author = {Kondra, S. and Yew, C. and Ahmad, F. and Hofmann, U. G.},
  title  = {Prototype of a patient monitoring device based on an embedded RISC/DSP system},
  year   = {2005},
  month  = {Januar},
}

Ahmad, F., Stein, N., Kondra, S., Hofmann, U. G., Matz, H. and Gehring, H.: Identifying different patterns of capnographic curves on spontaneously breathing patients vol. 50, no. Supplementary vol 1, Part 2, Biomedizinische Technik, 2005

@Book{Ahmad_InCAP_BMT05,
  title  = {Identifying different patterns of capnographic curves on spontaneously breathing patients},
  year   = {2005},
  author = {Ahmad, F. and Stein, N. and Kondra, S. and Hofmann, U. G. and Matz, H. and Gehring, H.},
  volume = {50},
  number = {Supplementary vol 1, Part 2},
  series = {Biomedizinische Technik},
}

Litza, M., Hiller, A., Moser, A. and Hofmann, U. G.: Deep brain stimulation and synchronous neurotransmitter Detection Januar, 2005

@Conference{LitzaBMT05_scrpt,
  author = {Litza, M.G and Hiller, A. and Moser, A. and Hofmann, U. G.},
  title  = {Deep brain stimulation and synchronous neurotransmitter Detection},
  year   = {2005},
  month  = {Januar},
}

Ahmad, F., Kondra, S. and Hofmann, U. G.: A wireless body area network for multichannel EMG recordings in Biomedizinische Technik, vol. 50, no. Supplementary vol. 1, Part 2, Biomedizinische Technik, Januar, 2005

@Conference{Ahmad_WBAN_BMT05,
  author    = {Ahmad, F. and Kondra, S. and Hofmann, U. G.},
  title     = {A wireless body area network for multichannel EMG recordings},
  booktitle = {Biomedizinische Technik},
  year      = {2005},
  volume    = {50},
  number    = {Supplementary vol. 1, Part 2},
  series    = {Biomedizinische Technik},
  month     = {Januar},
}

Kondra, S., Menne, K., Klostermann, M., Klatt, S. and Hofmann, U. G.: A Small Network with Huge Artificially Grown Pyramidal Cells in Poster Presented at WAM-BAMM’05, San Antonio, TX, US, April, 2005

@Misc{KondraWAM-BAMM05,
  author       = {Kondra, S. and Menne, K. and Klostermann, M. and Klatt, S. and Hofmann, U. G.},
  title        = {A Small Network with Huge Artificially Grown Pyramidal Cells},
  booktitle = {Poster Presented at WAM-BAMM’05, San Antonio, TX, US},
  month        = {April},
  year         = {2005},
}

2004

Jannasch, S., Klinger, R., Matter, N. and Hofmann, U.: Recording electromyographic signals in a classical conditioning experiment Short Article and Poster, Jahrestagung der DGBMT, Ilmenau, Schiel&Schön, Januar, 2004

@Article{Jannasch2004,
  author  = {Jannasch, S. and Klinger, R. and Matter, N. and Hofmann, U.},
  title   = {Recording electromyographic signals in a classical conditioning experiment},
  journal = {Short Article and Poster, Jahrestagung der DGBMT, Ilmenau, Schiel&Schön},
  year    = {2004},
  month   = {Januar},
  
}

Menne, K. and Hofmann, U.: Enhancement of the benefits of intraoperative electrophysiological recordings during framebased stereotactic surgeries by customized signal analysis Talk and Abstract, 55. Jahrestagung der Deutschen Gesellschaft für Neurochirurgie, Köln, Abstracts, MI.03.02., 2004

@Article{MenneEnhancement,
  author  = {Menne, K.M.L. and Hofmann, U.},
  title   = {Enhancement of the benefits of intraoperative electrophysiological recordings during framebased stereotactic surgeries by customized signal analysis},
  journal = {Talk and Abstract, 55. Jahrestagung der Deutschen Gesellschaft für Neurochirurgie, Köln, Abstracts, MI.03.02.},
  year    = {2004},
}

Knoop, U., Jensen, W., Kewley, D. T., Bower, J. M., Yoshida, K. and Hofmann, U.: Compression of the cerebral cortex during corticotomy: A study of dimpling in rats April, 2004

@Misc{Knopp_et_al._Dimpling_DGNC_01,
  author = {Knoop, Ulrich and Jensen, W. and Kewley, D. T. and Bower, J. M. and Yoshida, K. and Hofmann, U.G.},
  title  = {Compression of the cerebral cortex during corticotomy: A study of dimpling in rats},
  month  = {April},
  year   = {2004},
}

Hofmann, U. G., Bär, M., Detemple, P., Kindlundh, M. and Norlin, P.: Acute Multisite Recording Probes for Neurons in Mice and Men mstNews, pp. 14-16, 2004

@ARTICLE{HofmannMstNews0104,
  author = {U. G. Hofmann and M. B{\"a}r and P. Detemple and M. Kindlundh and P.
	Norlin},
  title = {Acute Multisite Recording Probes for Neurons in Mice and Men},
  journal = {mstNews},
  year = {2004},
  pages = {14-16}
}

Kindlundh, M., Norlin, P. and Hofmann, U.: A neural probe process enabling variable electrode configurations Sensors & Actuators B: Chemical, vol. 102/1, pp. 1-58, 2004

@ARTICLE{KindlundhSA2004,
  author = {Kindlundh, M. and Norlin, P. and Hofmann, U.G.},
  title = {A neural probe process enabling variable electrode configurations},
  year = {2004},  
  journal = {Sensors & Actuators B: Chemical},
  volume = {102/1},
  pages = {51-58}
  
}

2003

Hofmann, U. G.: Technologien und Methoden für die akute, neuronale Vielfach-Ableitung Mikrostrukturtechnik, Datenaufnahme und Signal-Analyse in Echtzeit auf dem Weg zur direkten Gehirn-Maschine-Kopplung 2003

@MISC{HofmannHabil2003,
  author = {Ulrich G. Hofmann},
  title = {Technologien und Methoden für die akute, neuronale Vielfach-Ableitung
	– Mikrostrukturtechnik, Datenaufnahme und Signal-Analyse in Echtzeit
	auf dem Weg zur direkten Gehirn-Maschine-Kopplung},
  howpublished = {Habilitationsschrift, Technisch-Naturwissenschaftliche Fakultät,
	Universität zu Lübeck},
  year = {2003}
}

Folkers, A., Stemman, H., Menne, K. M. L., Norlin, P., Kindlundh, M. and Hofmann, a. W. F. U. G.: Realtime wavelet-based clustering for a 64 channel multisite recording system in Poster and Abstract, CNS*2003, Alicante, 2003

@INPROCEEDINGS{FolkersCNS2003,
  author = {A. Folkers and H. Stemman and K. M. L. Menne and P. Norlin and M.
	Kindlundh and W. Freiwald an U. G. Hofmann},
  title = {Realtime wavelet-based clustering for a 64 channel multisite recording
	system},
  booktitle = {Poster and Abstract, CNS*2003},
  year = {2003},
  address = {Alicante}
}

Folkers, A., Mösch, F., Malina, T. and Hofmann, U. G.: Realtime bioelectrical data acquisition and processing from 128 channels utilizing the Wavelet-Transformation Neurocomputing, vol. 52-54, pp. 247-254, 2003

@ARTICLE{FolkersNeuCom2003,
  author = {A. Folkers and F. M{\"o}sch and T. Malina and U. G. Hofmann},
  title = {Realtime bioelectrical data acquisition and processing from 128 channels
	utilizing the Wavelet-Transformation},
  journal = {Neurocomputing},
  year = {2003},
  volume = {52-54},
  pages = {247-254}
}

Mamlouk, A. M., Chee-Ruiter, C., Hofmann, U. G. and Bower, J. M.: Quantifying Olfactory Perception: Mapping Olfactory Perception Space by using Multidimensional Scaling and Self-Organizing Maps Neurocomputing, vol. 52-54, pp. 591-597, 2003

@ARTICLE{MadanyNeuCom2003,
  author = {A. Madany Mamlouk and C. Chee-Ruiter and U. G. Hofmann and J. M.
	Bower},
  title = {Quantifying Olfactory Perception: Mapping Olfactory Perception Space
	by using Multidimensional Scaling and Self-Organizing Maps},
  journal = {Neurocomputing},
  year = {2003},
  volume = {52-54},
  pages = {591-597}
}

Kindlundh, M., Norlin, P. and Hofmann, U. G.: On-demand neural probes in Transducers 03 - The 12th Int Conference on Solid State Sensors, Actuators and Microsystems, 2003

@INPROCEEDINGS{KindlundhTransduc2003,
  author = {M. Kindlundh and P. Norlin and U. G. Hofmann},
  title = {On-demand neural probes},
  booktitle = {Transducers 03 - The 12th Int' Conference on Solid State Sensors,
	Actuators and Microsystems},
  year = {2003}
}

Menne, K. M. L., Folkers, A., Schuhart, H. and Hofmann, U. G.: Neurosurgery by Multichannel Electrophysiology, Patient Specific Navigation, and Customized Database Poster and Biomedizinsiche Technik, vol. 48 (E1), pp. 500-501, 2003

@ARTICLE{MenneBMT2003,
  author = {K. M. L. Menne and A. Folkers and H. Schuhart and U. G. Hofmann},
  title = {Neurosurgery by Multichannel Electrophysiology, Patient Specific
	Navigation, and Customized Database},
  journal = {Poster and Biomedizinsiche Technik},
  year = {2003},
  volume = {48 (E1)},
  pages = {500-501}
}

Folkers, A., Jannasch, S. and Hofmann, U. G.: Lifting Scheme - an alternative to wavelet transforms for real time applications GlobalDSP Magazine, pp. 3-6, 2003

@ARTICLE{FolkersGlobalDSP2003,
  author = {A. Folkers and S. Jannasch and U. G. Hofmann},
  title = {Lifting Scheme - an alternative to wavelet transforms for real time
	applications},
  journal = {GlobalDSP Magazine},
  year = {2003},
  pages = {3-6}
}

Eberhardt, F., Bode, F., Hofmann, U. G., Lipphardt, M. and Wiegand, U. K. H.: Kontinuierliche Analyse atrialer Elektrogramme von DDD-Schrittmachern in Ruhe und unter Belastung mittels automatischer Signalverarbeitung Herzschrittmachertherapie & Elektrophysiologie, vol. 14 (Supp1), pp. 86-87, 2003

@ARTICLE{Eberhardt2003,
  author = {F. Eberhardt and F. Bode and U. G. Hofmann and M. Lipphardt and U.
	K. H Wiegand},
  title = {Kontinuierliche Analyse atrialer Elektrogramme von DDD-Schrittmachern
	in Ruhe und unter Belastung mittels automatischer Signalverarbeitung},
  journal = {Herzschrittmachertherapie \& Elektrophysiologie},
  year = {2003},
  volume = {14 (Supp1)},
  pages = {86-87}
}

Hofmannand, U. G. and Es-Souni, M.: Bi-Stabile Mikrodraht-Matrix für die neuronale Ableitung 2003

@MISC{HofmannDE10355815.2,
  author = {U. G. Hofmannand and M. Es-Souni},
  title = {Bi-Stabile Mikrodraht-Matrix für die neuronale Ableitung},
  howpublished = {Eingereicht zum Deutschen Patent},
  year = {2003}
}

Jensen, W., Hofmann, U. G. and Yoshida, K.: Assessment of subdural insertion force of single-tine microelectrodes in rat cerebral cortex in 25th Ann. Int. Conf of the IEEE Engineering in Medicine & Biology Society, pp. 2168-2171, Cancun, Mexico, 2003

@INPROCEEDINGS{JensenYoshida2003,
  author = {W. Jensen and U. G. Hofmann and K. Yoshida},
  title = {Assessment of subdural insertion force of single-tine microelectrodes
	in rat cerebral cortex},
  booktitle = {25th Ann. Int. Conf of the IEEE Engineering in Medicine \& Biology
	Society},
  year = {2003},
  pages = {2168-2171},
  address = {Cancun, Mexico}
}

2002

Menne, K. M. L., Folkers, A., Malina, T., Maex, R. and Hofmann, U. G.: Test of spike sorting algorithms on the basis of simulated network data Neurocomputing 44-46, vol. 44-46, pp. 1119-1126, 2002

@ARTICLE{MenneNEUCOM2002,
  author = {K. M. L. Menne and A. Folkers and T. Malina and R. Maex and U. G.
	Hofmann},
  title = {Test of spike sorting algorithms on the basis of simulated network
	data},
  journal = {Neurocomputing 44-46},
  year = {2002},
  volume = {44-46},
  pages = {1119-1126}
}

Hofmann, U. G., Jensen, W., Yoshida, K., Kindlundh, M. and Norlin, P.: Silizium-Vielfachsonden für die Neurowissenschaften FOCUS MUL, vol. 19, no. 3, pp. 132-139, 2002

@ARTICLE{HofmannFocusMUL2002,
  author = {U. G. Hofmann and W. Jensen and K. Yoshida and M. Kindlundh and P.
	Norlin},
  title = {Silizium-Vielfachsonden für die Neurowissenschaften},
  journal = {FOCUS MUL},
  year = {2002},
  volume = {19},
  pages = {132-139},
  number = {3}
}

Malina, T., Folkers, A. and Hofmann, U. G.: Real-time EEG processing based on Wavelet Transformation in IFMBE - 12th Nordic Baltic Conference on Biomedical Engineering and Medical Physics, Reykjavik, 2002

@INPROCEEDINGS{MalinaNBC2002,
  author = {T. Malina and A. Folkers and U. G. Hofmann},
  title = {Real-time EEG processing based on Wavelet Transformation},
  booktitle = {IFMBE - 12th Nordic Baltic Conference on Biomedical Engineering and
	Medical Physics},
  year = {2002},
  address = {Reykjavik},
  organization = {International Federation for Medical \& Biological Engineering}
}

Norlin, P., Kindlundh, M. and Hofmann, U.: Probe suitable for use in neural tissue Swedish Patent Pending 2002, European Patent Pending EP 1389442 A1, 2002

@Book{HofmannSwedishPatent2002,
  title     = {Probe suitable for use in neural tissue},
  publisher = {Swedish Patent Pending 2002, European Patent Pending EP 1389442 A1},
  year      = {2002},
  author    = {Norlin, P. and Kindlundh, M. and Hofmann, U.},
}

Hofmann, U. G., Knopp, U., Modersitzki, J. and Fischer, B.: Navigationshilfsvorrichtung für neurochirurgische Eingriffe am menschlichen Gehirn 2002

@MISC{HofmannPatent2002,
  author = {U. G. Hofmann and U. Knopp and J. Modersitzki and B. Fischer},
  title = {Navigationshilfsvorrichtung für neurochirurgische Eingriffe am menschlichen
	Gehirn},
  howpublished = {Eingereicht zum Deutschen Patent, DE 10242802.6},
  year = {2002}
}

Biella, G. R., Uva, L., Hofmann, U. G. and deCurtis, M.: Intrinsic and associative synaptic circuit in the temporal neocortex, and enotrhinal cortex: an intra- and extracellular electrophysiological study in Forum of European Neurosciences - Abstracts, Paris, 2002

@INPROCEEDINGS{BiellaFENS2002,
  author = {G. R. Biella and L. Uva and U. G. Hofmann and M. deCurtis},
  title = {Intrinsic and associative synaptic circuit in the temporal neocortex,
	perirhinal and enotrhinal cortex: an intra- and extracellular electrophysiological
	study},
  booktitle = {Forum of European Neurosciences - Abstracts},
  year = {2002},
  address = {Paris}
}

Schuhart, H., Menne, K. M. L. and Hofmann, U. G.: GROGRA and GENESIS: in computo grown neurons used for realistic compartmental modeling in Poster and Abstract, CNS2002, Chicago, 2002

@INPROCEEDINGS{SchuhartCNR2002,
  author = {H. Schuhart and K. M. L. Menne and U. G. Hofmann},
  title = {GROGRA and GENESIS: in computo grown neurons used for realistic compartmental
	modeling},
  booktitle = {Poster and Abstract, CNS2002},
  year = {2002},
  address = {Chicago}
}

Kindlundh, M., Norlin, P. and Hofmann, U. G.: Development of multisite microelectrodes for neuroscience in Proceedings of the Micro Structure Workshop MSW 02, pp. B8.1-B8.6, Aronsborg, Sweden, 2002

@INPROCEEDINGS{KindlundhMWS2002,
  author = {M. Kindlundh and P. Norlin and U. G. Hofmann},
  title = {Development of multisite microelectrodes for neuroscience},
  booktitle = {Proceedings of the Micro Structure Workshop MSW'02},
  year = {2002},
  pages = {B8.1-B8.6},
  address = {Aronsborg, Sweden}
}

Menne, K. M. L., Malina, T. and Hofmann, U. G.: Biologically realistic simulation of a part of hippocampal CA3: Generation of testdata for the evaluation of spike detection algorithms in 5th German Workshop on Artificial Life - Abstracting and Synthesizing the Principles of Living Systems, pp. 17-25, IOS Press Infix, Lübeck, 2002

@INPROCEEDINGS{MenneGWAL5-2002,
  author = {K. M. L. Menne and T. Malina and U. G. Hofmann},
  title = {Biologically realistic simulation of a part of hippocampal CA3: Generation
	of testdata for the evaluation of spike detection algorithms},
  booktitle = {5th German Workshop on Artificial Life - Abstracting and Synthesizing
	the Principles of Living Systems},
  year = {2002},
  editor = {D. Polani and J. Kim and T. Martinetz},
  pages = {17-25},
  address = {Lübeck},
  publisher = {IOS Press Infix}
}

Menne, K. M. L., Maex, R. and Hofmann, U. G.: Biologically realistic simulated extracellular potential data as benchmark for the evaluation of spike detection algorithms in Poster and Abstract, CNS2002, Chicago, 2002

@INPROCEEDINGS{MenneCNS2002,
  author = {K. M. L. Menne and R. Maex and U. G. Hofmann},
  title = {Biologically realistic simulated extracellular potential data as
	benchmark for the evaluation of spike detection algorithms},
  booktitle = {Poster and Abstract, CNS2002},
  year = {2002},
  address = {Chicago}
}

Biella, G., Uva, L., Hofmann, U. G. and deCurtis, M.: Associative interactions within the superficial layers of the entorhinal cortex of the guinea pig J. Neurophysiology, vol. 88, no. 3, pp. 1159-1165, 2002

@ARTICLE{Biella_JN88_2002,
  author = {G. Biella and L. Uva and U. G. Hofmann and M. deCurtis},
  title = {Associative interactions within the superficial layers of the entorhinal
	cortex of the guinea pig},
  journal = {J. Neurophysiology},
  year = {2002},
  volume = {88},
  pages = {1159-1165},
  number = {3}
}

Menne, K. M. L., R, R. M. and Hofmann, U. G.: A realistical simulation of a small CA3 network to benchmark spike sorting algorithms and feature detection in Poster and Abstract, Forum of European Neurosciences, vol. Abstr. vol.1, A090.12, Paris, 2002

@INPROCEEDINGS{MenneFens2002,
  author = {K. M. L. Menne and R. Maex R and U. G. Hofmann},
  title = {A realistical simulation of a small CA3 network to benchmark spike
	sorting algorithms and feature detection},
  booktitle = {Poster and Abstract, Forum of European Neurosciences},
  year = {2002},
  volume = {Abstr. vol.1, A090.12},
  address = {Paris}
}

Fagerstedt, P., Volny-Luraghi, A., Kindlundh, M., Norlin, P., Hofmann, U. and DeSchutter, E.: A new type of silicon probes with multi-site microelectrodes for unit and local field potential (LFP) recordings from cerebellar cortex of anesthetized rats in Forum of European Neurosciences - Abstracts. 2002, Paris, 2002

@INPROCEEDINGS{FagerstedtFENS2002,
  author = {P. Fagerstedt and A. Volny-Luraghi and M. Kindlundh and P. Norlin
	and U. Hofmann and E. DeSchutter},
  title = {A new type of silicon probes with multi-site microelectrodes for
	single unit and local field potential (LFP) recordings from cerebellar
	cortex of anesthetized rats},
  booktitle = {Forum of European Neurosciences - Abstracts. 2002},
  year = {2002},
  address = {Paris}
}

Lipphard, M., Eberhardt, F. and Hofmann, U. G.: A Matlab program to quantify low-SNR pacemaker signals in IFMBE - 12th Nordic Baltic Conference on Biomedical Engineering and Medical Physics., Reykjavik, 2002

@INPROCEEDINGS{LipphardNBC02,
  author = {M. Lipphard and F. Eberhardt and U. G. Hofmann},
  title = {A Matlab program to quantify low-SNR pacemaker signals},
  booktitle = {IFMBE - 12th Nordic Baltic Conference on Biomedical Engineering and
	Medical Physics.},
  year = {2002},
  address = {Reykjavik},
  organization = {International Federation for Medical \& Biological Engineering}
}

Hofmann, U. G., Folkers, A., Mösch, F., Höhl, F., Kindlundh, M. and Norlin, P.: A 64(128)-channel multisite neuronal recording system Biomedizinische Technik, vol. 47(E 1), pp. 194-197, 2002

@ARTICLE{HofmannBMT2002,
  author = {U. G. Hofmann and A. Folkers and F. M{\"o}sch and F. H{\"o}hl and M. Kindlundh
	and P. Norlin},
  title = {A 64(128)-channel multisite neuronal recording system},
  journal = {Biomedizinische Technik},
  year = {2002},
  volume = {47(E 1)},
  pages = {194-197}
}

Norlin, P., Kindlundh, M., Mouroux, A., Yoshida, K., Jensen, W. and Hofmann, U. G.: A 32-site neural recording probe fabricated by DRIE of SOI substrates J. Micromechanics Microeng., vol. 12, pp. 414-419, 2002

@ARTICLE{NorlinJMM2002,
  author = {P. Norlin and M. Kindlundh and A. Mouroux and K. Yoshida and W. Jensen
	and U. G. Hofmann},
  title = {A 32-site neural recording probe fabricated by DRIE of SOI substrates},
  journal = {J. Micromechanics Microeng.},
  year = {2002},
  volume = {12},
  pages = {414-419}
}

2001

Jensen, W., Malina, T., Hofmann, U. G. and Yoshida, K.: Measurement of intrafascicular insertion force of a tungsten needle into peripheral nerve in Proc. IEEE EMBS, PaperID 517, Istanbul, Turkey, Istanbul, Turkey, 2001

@INPROCEEDINGS{JensenIEEE01,
  author = {W. Jensen and T. Malina and U. G. Hofmann and K. Yoshida},
  title = {Measurement of intrafascicular insertion force of a tungsten needle
	into peripheral nerve},
  booktitle = {Proc. IEEE EMBS, PaperID 517, Istanbul, Turkey},
  year = {2001},
  address = {Istanbul, Turkey},
  note = {PaperID 517}
}

Britt, D. W., Hofmann, U. G., Möbius, D. and Hell, S. W.: Influence od substrate properties on the topochemical polymerization of diacetylene monolayers Langmuir, vol. 17, pp. 3757-3765, 2001

@ARTICLE{LA17Britt2001,
  author = {D. W. Britt and U. G. Hofmann and D. M{\"o}bius and S. W. Hell},
  title = {Influence od substrate properties on the topochemical polymerization
	of diacetylene monolayers},
  journal = {Langmuir},
  year = {2001},
  volume = {17},
  pages = {3757-3765}
}

Weber, B., Malina, T., Menne, K., Metzler, V., Folkers, A. and Hofmann, U. G.: Handling large files of multisite microelectrode recordings for the European VSAMUEL consortium Neurocomputing, vol. 38-40, pp. 1725-1734, 2001

@ARTICLE{WeberNEUCOM01,
  author = {B. Weber and T. Malina and K. Menne and V. Metzler and A. Folkers
	and U. G. Hofmann},
  title = {Handling large files of multisite microelectrode recordings for the
	European VSAMUEL consortium},
  journal = {Neurocomputing},
  year = {2001},
  volume = {38-40},
  pages = {1725-1734}
}

Menne, K. M. L., Maex, R. and Hofmann:, U. G.: Extracellular potential data generated in a network simulation in Poster and Abstract, The Neurosciences at the Turn of the Century, Proceedings of the 4th Meeting of the German Neuroscience Society, vol. 1, no. 602, Georg Thieme Verlag, Göttingen,, 2001

@INPROCEEDINGS{MEN01a,
  author = {K. M. L. Menne and R. Maex and U. G. Hofmann},
  title = {Extracellular potential data generated in a network simulation},
  booktitle = {Poster and Abstract, The Neurosciences at the Turn of the Century,
	Proceedings of the 4th Meeting of the German Neuroscience Society},
  year = {2001},
  volume = {1},
  number = {602},
  address = {Göttingen},
  publisher = {Georg Thieme Verlag}
}

Hofmann, U. G., Thompson, J. and Kewley, D. T.: Electrophysiological depth profiling by multiunit microelectrodes for stereotactic neurosurgery 2001

@MISC{HOF01a,
  author = {U. G. Hofmann and J. Thompson and D. T. Kewley},
  title = {Electrophysiological depth profiling by multiunit microelectrodes
	for stereotactic neurosurgery},
  howpublished = {US Patent No. 6,330,466, California Institute of Technology, USA},
  year = {2001}
}

Hofmann, U. G. and Peltonen, J.: Colour transitions in monolayers of a polymerizable single chain diacetylenic lipid Langmuir, vol. 17, pp. 1518-24, 2001

@ARTICLE{La17Jouko2001,
  author = {U. G. Hofmann and J. Peltonen},
  title = {Colour transitions in monolayers of a polymerizable single chain
	diacetylenic lipid},
  journal = {Langmuir},
  year = {2001},
  volume = {17},
  pages = {1518-24}
}

Yoshida, K., Jensen, W., Norlin, P., Kindlundh, M. and Hofmann, U. G.: Characterization of silicon microelectrodes from the EU VSAMUEL project Biomedizinsche Technik, vol. 46, no. E1, pp. 446-447, 2001

@ARTICLE{YoshidaBMT01,
  author = {K. Yoshida and W. Jensen and P. Norlin and M. Kindlundh and U. G.
	Hofmann},
  title = {Characterization of silicon microelectrodes from the EU VSAMUEL project},
  journal = {Biomedizinsche Technik},
  year = {2001},
  volume = {46},
  pages = {446-447},
  number = {E1}
}

Malina, T., Folkers, A., Mösch, F., Labusch, K., Schürmann, M. and Hofmann, U. G.: An integrated system to trigger feedback-coupled event related brain potentials (ERPs) Biomedizinsche Technik, vol. 46, no. E1, pp. 322-323, 2001

@ARTICLE{MalinaBMT2001,
  author = {T. Malina and A. Folkers and F. M{\"o}sch and K. Labusch and M. Sch{\"u}rmann
	and U. G. Hofmann},
  journal = {In: J. Werner (Ed.),  46 E1, , Schiele \& Sch{\"o}n GmbH, Bochum},
  title = {An integrated system to trigger feedback-coupled event related brain
	potentials (ERPs)},
  journal = {Biomedizinsche Technik},
  year = {2001},
  volume = {46},
  pages = {322-323},
  number = {E1}
}

Folkers, A. and Hofmann, U. G.: A multichannel data acquisition and analysis system based on off-the-shelf DSP boards in Proceedings of the EURASIP Conference on Digital Signal Processing for Multimedia Communications and Services (ECMCS), pp. 249-252, Scientific Association of Infocommunications - HTE, 2001

@INPROCEEDINGS{FolkersHofmannECMCS01,
  author = {A. Folkers and U. G. Hofmann},
  title = {A multichannel data acquisition and analysis system based on off-the-shelf
	DSP boards},
  booktitle = {Proceedings of the EURASIP Conference on Digital Signal Processing
	for Multimedia Communications and Services (ECMCS)},
  year = {2001},
  editor = {K. Fazekas},
  pages = {249-252},
  publisher = {Scientific Association of Infocommunications - HTE}
}

Norlin, P., Kindlundh, M., Mouroux, A., Yoshida, K., Jensen, W. and Hofmann, U. G.: A 32-site neural recording probe fabricated by double-sided deep reactive ion etching of Silicon-on-Insulator substrates in Micromechanics Europe Workshop (MME-2001), Cork, Ireland, 2001

@INPROCEEDINGS{NorlinMME01,
  author = {P. Norlin and M. Kindlundh and A. Mouroux and K. Yoshida and W. Jensen
	and U. G. Hofmann},
  title = {A 32-site neural recording probe fabricated by double-sided deep
	reactive ion etching of Silicon-on-Insulator substrates},
  booktitle = {Micromechanics Europe Workshop (MME-2001)},
  year = {2001},
  address = {Cork, Ireland}
}

2000

Hofmann, U. G., Folkers, A., Malina, T., Biella, G., Curtis, d. . M., DeSchutter, E., Yoshida, K., Thomas, U., Höhl, D. and Norlin, P.: Towards a versatile system for advanced neuronal recordings using silicon multisite microelectrodes Biomedizinische Technik, vol. 45, no. E 1, pp. 169-170, 2000

@ARTICLE{HofmannFolkersBMT00,
  author = {U. G. Hofmann and A. Folkers and T. Malina and G. Biella and M. de
	Curtis and E. DeSchutter and K. Yoshida and U. Thomas and D. H{\"o}hl
	and P. Norlin},
  title = {Towards a versatile system for advanced neuronal recordings using
	silicon multisite microelectrodes},
  journal = {Biomedizinische Technik},
  year = {2000},
  volume = {45},
  pages = {169-170},
  number = {E 1}
}

Hooser, v. S. D., Hofmann, U. G., Kewley, D. T. and Bower, J. M.: Relationship between field potentials and spike activity in rat SI: Multi-site cortical recordings and simulations Neurocomputing, vol. 32-33, pp. 591-596, 2000

@ARTICLE{VanHooserNEUCOM00,
  author = {S. D. van Hooser and U. G. Hofmann and D. T. Kewley and J. M. Bower},
  title = {Relationship between field potentials and spike activity in rat SI:
	Multi-site cortical recordings and simulations},
  journal = {Neurocomputing},
  year = {2000},
  volume = {32-33},
  pages = {591-596}
}

Hofmann, U. G., Schutter, E. D., Curtis, d. M., Yoshida, K., Thomas, U. and Norlin, P.: On the design of multi-site microelectrodes for neuronal recordings in World Conference on Microtechnologies: MICRO.tec 2000, vol. 1/2, pp. 283-288, VDE-Verlag, 2000

@INPROCEEDINGS{HofmannMicroTec00,
  author = {U. G. Hofmann and E. De Schutter and M. de Curtis and K. Yoshida
	and U. Thomas and P. Norlin},
  title = {On the design of multi-site microelectrodes for neuronal recordings},
  booktitle = {World Conference on Microtechnologies: MICRO.tec 2000},
  year = {2000},
  volume = {1/2},
  pages = {283-288},
  publisher = {VDE-Verlag}
}

Hofmann, U. G., Hertlein, F., Knopp, U. and Langer, E.: On the design of intracranial multi-site microelectrodes for electro impedance tomography Biomedizinische Technik, vol. 45, no. E 1, pp. 167-168, 2000

@ARTICLE{HofmannKnoppBMT00,
  author = {U. G. Hofmann and F. Hertlein and U. Knopp and E. Langer},
  title = {On the design of intracranial multi-site microelectrodes for electro
	impedance tomography},
  journal = {Biomedizinische Technik},
  year = {2000},
  volume = {45},
  pages = {167-168},
  number = {E 1}
}

1999

Hofmann, U., Kewley, D. and Bower, J.: Connector for semiconductor microelectrodes and flexible wiring no. 5, 951,323, US Patent, California Institute of Technology, USA, 1999

@Book{HofmannUSPatent1999,
  title     = {Connector for semiconductor microelectrodes and flexible wiring},
  publisher = {US Patent, California Institute of Technology, USA},
  year      = {1999},
  author    = {Hofmann, U.H. and Kewley, D.T. and Bower, J.M.},
  number    = {5, 951,323},
}