Gamma-oscillations support optimal retrieval in associative memories of two-compartment neurons

被引：5

作者：

Wennekers, T ^{[1
]}

Sommer, FT ^{[1
]}

机构：

[1] Univ Ulm, Fac Comp Sci, Dept Neural Informat Proc, D-89069 Ulm, Germany

来源：

NEUROCOMPUTING | 1999年 / 26-7卷

关键词：

gamma-oscillations; threshold control; associative memory;

D O I：

10.1016/S0925-2312(99)00036-3

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

Theoretical studies concerning iterative retrieval in conventional associative memories suggest that cortical gamma-oscillations may constitute sequences of fast associative processes each restricted to a single period. By providing a rhythmic threshold modulation suppressing cells that are uncorrelated with a stimulus, interneurons significantly contribute to this process. This hypothesis is tested in the present paper utilizing a network of two-compartment model neurons developed by Pinsky and Rinzel. It is shown that gamma-oscillations can simultaneously support an optimal speed for single pattern retrieval, an optimal repetition frequency for consecutive retrieval processes, and a very high memory capacity, (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：573 / 578

页数：6

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