MIT Researchers Propose New Role for Astrocytes in Memory Storage
A team from MIT has proposed a new hypothesis regarding the role of astrocytes in the brain, suggesting these cells may play a significant part in memory storage. Traditionally considered as support cells, astrocytes are now thought to contribute to computational processes that neurons alone cannot achieve. The research, published in the Proceedings of the National Academy of Sciences, introduces a model where astrocytes form tripartite synapses with neurons, potentially allowing for a higher-order coupling necessary for dense associative memory. This model suggests that astrocytes could help the brain store an arbitrarily large number of memory patterns, limited only by the network's size. The hypothesis is supported by mathematical modeling, though experimental validation is still required.