A new paper of Prof. Nakahara and his colleagues was published in “Nature Communications”.

Prof. Kiyoshi Nakahara, School of Information, Research Center for Brain Communication, and his colleagues clarified that long-term associative memory is encoded in spatial patterns of theta activity in the brain.

They trained two monkeys to memorize several pairs of visual items. Using originally developed 128-channel electrode array, they showed that associated visual items elicited significantly similar theta activation patterns in the temporal lobe of the monkeys.

Their results may provide one of the fundamental principles of long-term memory representation in the brain, as well as clues to understand the pathology of memory impairments such as dementia.

Their paper was published in an open access journal, Nature Communications on 10 June, 2016.