An analog memory circuit for spiking silicon neurons.
A simple circuit is described that functions as an analog memory whose state and dynamics are directly controlled by pulsatile inputs. The circuit has been incorporated into a silicon neuron with a spatially extensive dendritic tree as a means of controlling the spike firing threshold of an integrate-and-fire soma. Spiking activity generated by the neuron itself and by other units in a network can thereby regulate the neuron's excitability over time periods ranging from milliseconds to many minutes. Experimental results are presented showing applications to temporal edge sharpening, bistable behavior, and a network that learns in the manner of classical conditioning.
Elias
J G
JG
Department of Electrical Engineering, University of Delaware, Newark 19716, USA.
Northmore
D P
DP
Westerman
W
W
D000200:Action Potentials / Q000502:physiology; D000703:Analog-Digital Conversion; D016477:Artifacts; D003202:Computers, Analog; D003712:Dendrites / Q000502:physiology; D004553:Electric Conductivity; D008568:Memory; D016571:Neural Networks, Computer; D009474:Neurons / Q000502:physiology*; D012825:Silicon; D013569:Synapses / Q000502:physiology; D014173:Transistors, Electronic
D012825:Silicon