Summary
International Symposium on Nonlinear Theory and its Applications
2008
Session Number:B2L-C
Session:
Number:B2L-C3
Mathematical Model of Memory Consolidation Using Alternate Sampling between Neocortex and Hippocampus
Makito Oku, Kazuyuki Aihara,
pp.-
Publication Date:2008/9/7
Online ISSN:2188-5079
Summary:
It has long been controversial how different stages of sleep are involved in the process of memory consolidation. Experimental observations lead to a possibility that during slow-wave sleep the pathway from hippocampus to neocortex is dominant, while during rapid eye movement sleep the opposite directional pathway becomes dominant. In this paper, we propose a mathematical model of memory consolidation based on the hypothesis. In this model, two parameterized probability distributions, corresponding to neocortex and hippocampus, alternately update their parameters using samples generated by themselves. We show that this learning scheme is efficient to avoid local optima traps, which implies a new interpretation of the functional meaning of sleep.