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Rats Recall Past to Make Daily Decisions

 UCSF scientists have identified patterns of brain activity in the rat brain that play a role in the formation and recall of memories and decision-making. The discovery, which builds on the team's previous findings, offers a path for studying learning, decision-making and post-traumatic stress syndrome.  In the journal Science this week (online May 3, 2012), the UCSF researchers demonstrated that the brain activity is critical for memory formation and recall. Moreover, they showed that the brain patterns through which the rats see rapid replays of past experiences are fundamental to their ability to make decisions. Disturbing those particular brain patterns impaired the animals' ability to learn rules based on memories of things that had happened in the past.
Science Daily, May 3, 2012

Shantanu P. Jadhav, Caleb Kemere, P. Walter German and Loren M. Frank.
Awake Hippocampal Sharp-Wave Ripples Support Spatial Memory.
Science, May 4, 2012 DOI: 10.1126/science.1217230

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