Sequential Memory Recall in CA1 Taking Advantage of Theta-Like Spatiotemporal Activity of CA3: A Hippocampal Model
Sequential memory recall in a hippocampal neural network model was investigated. The hippocampus is known to be involved in, for example, associative memory, episodic memory and spatial learning. These junctions require the hippocampus to store not only memory patterns but also links between them. On the other hand, rhythmic activity such as the theta-rhythm is observed in the hippocampus and relevance between higher order tasks and theta-rhythm is object of much interest. In the present study, three memory patterns were stored as steady patterns of SC connection weight. Links between these memories were stored as asymmetric recurrent synoptic connection weights in CA3. These asymmetric connections controlled the theta-like spatiotemporal activity of CA3. As a result, stored memory patterns were recalled sequentially taking advantage of theta-like activity of the CA3 network.
Motoharu Yoshida Hatsuo Hayashi Satoru Ishizuka
Department of Information Systems, Graduate School of Computer Science and Systems Engineering, Kyus Department of Brain Science and Engineering, Graduate School of Life Science and Systems Engineering
国际会议
8th International Conference on Neural Information Processing(ICONIP 2001)(第八届国际神经信息处理大会)
上海
英文
58-63
2001-11-14（万方平台首次上网日期，不代表论文的发表时间）