Short-Term Depression in VLSI Stochastic Synapse
نویسندگان
چکیده
We report a compact realization of short-term depression (STD) in a VLSI stochastic synapse. The behavior of the circuit is based on a subtractive single release model of STD. Experimental results agree well with simulation and exhibit expected STD behavior: the transmitted spike train has negative autocorrelation and lower power spectral density at low frequencies which can remove redundancy in the input spike train, and the mean transmission probability is inversely proportional to the input spike rate which has been suggested as an automatic gain control mechanism in neural systems. The dynamic stochastic synapse could potentially be a powerful addition to existing deterministic VLSI spiking neural systems.
منابع مشابه
From Synapse to Behavior
Title of dissertation: BIO-INSPIRED VLSI SYSTEMS: FROM SYNAPSE TO BEHAVIOR Peng Xu, Doctor of Philosophy, 2008 Dissertation directed by: Professor Pamela Abshire Department of Electrical and Computer Engineering We investigate VLSI systems using biological computational principles. The elegance of biological systems throughout the structure levels provides possible solutions to many engineering...
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