Memory
Optogenetic stimulation of a hippocampal engram activates fear memory recall

In plain English
Optogenetic reactivation of hippocampal neurons tagged during fear learning induced freezing behavior in mice.
On the show1
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Xu Liu, Steve Ramirezorcid, Petti T Pang, Corey B Puryear, Arvind Govindarajan, Karl Deisseroth, Susumu Tonegawa