256-channel integrated neural interface and spatio-temporal signal processor

Abstract- We present an architecture and VLSI implemen- Various strategies in the analysis of spatio-temporal dynamtation of a distributed neural interface and spatio-temporal ics of the neuronal activity have been developed. Examples of signal processor. The integrated neural interface records neural such analysis include cross-correlation, spectral analysis [9] activity simultaneously on 256 voltage-mode channels. Each . . . channel implements differential signal acquisition, amplification and population vector analysis [10]. To date, brain actvity and band-pass filtering. An array of in-channel double-memory analysis techniques have been implemented off-chip, on a sample-and-hold cells stores two 16 x 16 electronic images stationary computer or an additional high-throughput digital of distributed neural activity consecutively in time. A column- processor. Integrated neural interfaces allow for local onparallel double sampling circuit performs frame differencing chip intelligent spat...

• Type: Conference
• Year: 2006
• Where: ISCAS
• Authors: J. N. Y. Aziz, Roman Genov, B. R. Bardakjian, M. Derchansky, P. L. Carlen
• Keywords: Integrated Neural Interfaces, ISCAS 2006, Neural Activity, Neural Interface