”Journal article
S. Miyamoto, N. Suematsu, Y. Umehira , Y. Hayashida, T. Yagi
"Age-related changes in the spatiotemporal responses to electrical stimulation in the visual cortex of rats with progressive vision loss"
Scientific Reports 7, Article number: 14165 (2017)
doi:10.1038/s41598-017-14303-1
Yuki Hayashida, Yuka Kudo, Ryoya Ishida, Hirotsugu Okuno, and Tetsuya Yagi
"Retinal circuit emulator with spatiotemporal spike outputs at millisecond resolution in response to visual events"
IEEE Transactions on Biomedical Circuits and Systems, vol.11, No.3, pp.597-611, June 2017.
doi: 10.1109/TBCAS.2017.2662659
”Conference Proceedings
N. Suematsu, K. Takatani, Y. Hayashida, Y. Okazaki, T. Yagi
"Quantitative Characterization of Neural Responses Induced by Microstimulation in Mice Visual Cortex for Designing a Visual Prosthetic Stimulation"
The Eye and The Chip 2017, Detroit, US, September 24-26, 2017
(Invited) Y. Hayashida, Y. Sakata, Y. Tanaka, T. Nomoto, T. Yagi,
"Optical-electrical modulation of cortical neuronal activities in the perfused tissue slice"
The 7th International Multidisciplinary Conference on Optofluidics 2017, Singapore, July 25-28, 2017
Y. Hayashida,
"Wireless Device System for Multi-Channel Intra-Cortical Microstimulations ~Evaluation with Animal Studies in Vivo"
Engineering in Medicine and Biology Society (EMBC2017), 39th Annual International conference of the IEEE, Jeju, Korea, July 11-17, 2017
T. Nomoto, Y. Tanaka, Y. Hayashida, T. Yagi,
"Imaging of population spikes induced by repetitive stimulus pulses in mouse cerebral slice in vitro"
Engineering in Medicine and Biology Society (EMBC2017), 39th Annual International conference of the IEEE, Jeju, Korea, July 11-17, 2017
Y. Hayashida, Y. Sakata, Y. Tanaka, T. Nomoto, T. Yagi,
"Local inhibition of microstimulation-induced neural excitations by near-infrared laser irradiation in mouse cerebral slices in vitro"
8th International IEEE EMBS Conference on Neural Engineering, Shanghai, China, May 25-28, 2017
Y. Hayashida, Y. Umehira, H. Yamazaki, T. Yagi,
"Intra-cortical neural stimulator for sensory prostheses"
The 5th RIEC International Symposium on Brain Functions and Brain Computer, Sendai, Japan, February 27-28, 2017
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”Journal article
S. Yasukawa, H. Okuno, K. Ishii, T. Yagi,
"Real-time Object Tracking Based on Scale-invariant Features Employing Bio-inspired Hardware"
Neural Networks, vol.81, pp.29-38, September 2016
doi:10.1016/j.neunet.2016.05.002.
T. D. Fehervari, T. Yagi,
"Population response propagation to extrastriate areas evoked by intracortical electrical stimulation in V1"
Frontiers in Neural Circuits 10:6, doi:10.3389/fncir.2016.00006, February 2016
”Conference Proceedings
S. Miyamoto, N. Suematsu, Y. Umehira, Y. Hayashida, T. Yagi,
"Spatiotemporal excitation of the primary visual cortex induced by intracortical microstimulation in the Royal College of Surgeons rats"
Society for Neuroscience 46th Annual Meeting Neuroscience 2016, San Diego, US, November 12-16, 2016.
S. Kitora, T. Yagi, Y. Hayashida,
"Cell-attached recordings of light-induced postsynaptic potentials in mouse retinal ganglion cells"
Society for Neuroscience 46th Annual Meeting Neuroscience 2016, San Diego, US, November 12-16, 2016.
N. Suematsu, K. Takatani, Y. Hayashida, Y. Okazaki, T. Yagi,
"Response profiles of a neuronal population excited by intracortical microstimulations in the mouse visual cortex"
Society for Neuroscience 46th Annual Meeting Neuroscience 2016, San Diego, US, November 12-16, 2016.
Y. Hayashida, Y. Kudo, R. Ishida, H. Okuno, T. Yagi,
"A retino-morphic hardware system simulating the graded and action potentials in retinal neuronal layers"
The 23rd International Conference Neural Information Processing(ICONIP2016), Kyoto, Japan, October16-21, 2016
T. Sugiura, A. U. Khan, J. Yu, Y. Takeuchi, S. Kameda, T. Kamata, Y. Hayashida, T. Yagi, and M. Imai,
"A Programmable Controller for Spatio-temporal Pattern Stimulation of Cortical Visual Prosthesis"
in Proc. of IEEE BioCAS2016, Shanghai, China@Oct. 17-19, 2016. (To appear)
T. Sugiura, J. Yu, Y. Takeuchi, Y. Hayashida, T. Yagi, and M. Imai,
"A Low Energy Implementation of Neural Stimulation Microprocessor for Cortical Visual Prothesis"
in Proc. of BrainCAS2016, Hangzhou, China, Oct. 20-21, 2016. (To appear)
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”Journal article
T. D. Fehervari, Y. Okazaki, H. Sawai and T. Yagi,
"In vivo voltage-sensitive dye study of lateral spreading of cortical activity in mouse primary visual cortex induced by a current impulse"
PLOS ONE, 10.1371/journal.pone.0133853, July 2015
H. Okuno, J. Hasegawa, T. Sanada, and T. Yagi,
"Real-time emulator for reproducing graded potentials in vertebrate retina"
IEEE Transactions on biomedical circuits and systems, vol.9, iss.2, pp.284-295, April, 2015
”Conference Proceedings
S. Futami, T. D. Fehervari, T. Yagi, Y. Hayashida,
"Inter-hemispheric neural excitations of visual cortices in response to electrical microstimuli in mice in vivo"
Engineering in Medicine and Biology Society (EMBC), 2015 37th Annual International conference of the IEEE, Milan, Italy, August 25-29, 2015
Y. Hayashida, Y. Umehira, K. Takatani, S. Futami, S. Kameda, T. Kamata, A. U. Khan, Y. Takeuchi, M. Imai,and T. Yagi,
"Cortical neural excitations in rats in vivo with using a prototype of awireless multi-channel microstimulation system"
Engineering in Medicine and Biology Society (EMBC), 2015 37th Annual International conference of the IEEE, Milan, Italy, August 25-29, 2015
pp.1642-1645
S. Ohtsu, T. Nomura, S. Uno, K. Maeda, Y. Hayashida,and T. Yagi,
"A large scale simulation of excitation propagation in layer 2/3 ofprimary and secondary visual cortices of mice"
Engineering in Medicine and Biology Society (EMBC), 2015 37th Annual International conference of the IEEE, Milan, Italy, August 25-29, 2015
pp.3957-3960
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”Journal article
S. Yasukawa, H. Okuno, S. Kameda, and T. Yagi,
"A vision sensor system with a real-time multi-scale filtering function"
International Journal of Mechatronics and Automation, vol.4, no.4, pp.248-258, 2014
S. Kameda, Y. Hayashida, H. Tanaka, T. Yagi,
"A Multi-channel Current Stimulator Chip for High Impedance Neural Electrodes"
Transactions of the Society of Instrument and Control Engineers, vol.50, no.8, pp.594-601, 2014
”Conference Proceedings
H. Okuno, T. Kawasetsu, L. A. Plana, S. B. Furber, and T. Yagi,
"A real-time simulator of a biological visual system composed of a silicon retina and SpiNNaker chips"
Proc. of the International Symposium on Artificial Life and Robotics 2014, Beppu, Japan, January 22-24, 2014
(Invited) H. Okuno, T. Sanada, J. Hasegawa, T. Kawasetsu, T. Yagi,
"Mixed analog-digital architecture for emulating biological visual systems"
Proc. of the 1st International Symposium on Neuromorphic and Nonlinear Engineering, Tokyo, Japan, February 20-21, 2014
Y. Hayashida, K. Takeuchi, N. Ishikawa, Y. Okazaki, T. D. Fehervari, H. Tanaka, T. Yagi,
"Voltage-sensitive dye imaging of the visual cortices responding to electrical pulses at different intervals in mice in vivo"
Engineering in Medicine and Biology Society (EMBC), 2014 36th Annual International Conference of the IEEE, Chicago, USA, August 26-30, 2014
pp.402-405
S. Kameda, Y. Hayashida, Y. Tanaka, D. Akita, T. Yagi,
"A multichannel current stimulator chip for spatiotemporal pattern stimulationof neural tissues"
Engineering in Medicine and Biology Society (EMBC), 2014 36th Annual International Conference of the IEEE, Chicago, USA, August 26-30, 2014
pp.5011-5015
T. Kawasetsu, R. Ishida, T. Sanada, and H. Okuno,
"A hardware system for emulating the early vision utilizing a silicon retina and SpiNNaker chips"
Proc. of the IEEE Biomedical Circuits and Systems Conference 2014, Lausanne, Switzerland, October 22-24, 2014
pp.552-555
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”Journal article
H. Tanaka, Y. Hayashida, N. Murayama, T. Igasaki,
"Targeted estimation of correlated signal sources in human brains?Application of our method to the electroencephalogram and electromyogram data during a finger single-tapping task?"
Jpn J Clin Neurophysiol, vol.41, no.1, pp.7-17, 2013
”Conference Proceedings
S. Kameda, Y. Hayashida, H. Tanaka, D. Akita and T. Yagi,
"A multi-channel current stimulator fabricated with Very Large Scale Integrated Circuit technology for cortical prostheses"
Abstracts of Neuro 2013, Kyoto, Japan, June 20-23, 2013
P1-1-247
H. Okuno, J. Hasegawa, and T. Yagi,
"A real-time emulation system for reconstructing spike activities of the retinal ganglion cells"
Abstracts of Neuro 2013, Kyoto, Japan, June 20-23, 2013
S. Kameda, Y. Hayashida, H. Tanaka, D. Akita, A. Iwata and T. Yagi,
"A Multi-channel Corrent Stimulator Chip Intended for a Visual Cortical Implant"
The 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBCf13), Short Papers No. 3260, Osaka, Japan, July 03-07, 2013
BME 51(Supplement), pp.R-140, September, 2013.
S. Kameda,
"A Multi-Channel Current Stimulator Chip for the Artificial Vision"
CMOS Emerging Technologies Research, Whistler, Canada, July 17-19, 2013
S. Yasukawa, H. Okuno, S. Kameda, T. Yagi,
"High-Speed Multiple Spatial Band-Pass Filtering using a Resistive Network"
Mechatronics and Automation (ICMA), 2013 International Conference on , Kagawa, Japan, August 04-07, 2013
pp.1299-1304
S. Kameda, Y. Hayashida, H. Tanaka, D. Akita and T. Yagi,
"A Multi-channel Current-Pulse Generator Chip used for High Impedance Stimulating Electrodes"
Proceedings of Life Engineering Symposium 2013 (LE2013), Yokohama, Japan, September 12-14, 2013
pp.491-496
(Invited talk) T. Yagi,
"Hybrid organs project at MEI center: from basic to translational research"
International workshop on biomedical engineering translational research, Hsinchu, Taiwan, December 10, 2013
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