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Accession Number:
AD0701080
Title:
A MODEL OF HIPPOCAMPAL CA3 CIRCUITRY.
Corporate Author:
MICHIGAN STATE UNIV EAST LANSING DIV OF ENGINEERING RESEARCH
Report Date:
1970-01-07
Abstract:
The paper discusses the structure and function of the hippocampus, particularly its CA3 sector, and presents a design of a functional model of CA3 that is being studied to discover ways in which its circuit relations may account for its presumed functions. A model of the pyramid-basket cells circuitry was designed and is being studied by computer simulation. It comprises 7 pyramids, 5 basket cells, and a cross-correlative masory element at each basket cell axon collateral toward a pyramid. The circuit behavior is described by first-order nonlinear differential equations, time delay parameters, and trainable nonlinear logic functions. Problems being studied include trade-offs between simultaneous over-all training methods and local training waves, and between inhibitory averaging by basket cells and locally specific learning in basket cell distribution systems. A CA3 time binding capability allows not only temporal integration but also a markovian element in CA3s output even if no CA1 or other cortex is present. Author
Descriptive Note:
Interim scientific rept. no. 6,
Pages:
0044
Contract Number:
AF-AFOSR-1023-67
File Size:
0.00MB
