Praneeth Namburi, Anna Beyeler, Suzuko Yorozu, Gwendolyn G Calhoon, Sarah A Halbert, Romy Wichmann, Stephanie S Holden, Kim L Mertens, Melodi Anahtar, Ada C Felix-Ortiz, Ian R Wickersham, Jesse M Gray, Kay M Tye
The ability to differentiate stimuli predicting positive or negative outcomes is critical for survival, and perturbations of emotional processing underlie many psychiatric disease states. Synaptic plasticity in the basolateral amygdala complex (BLA) mediates the acquisition of associative memories, both positive and negative. Different populations of BLA neurons may encode fearful or rewarding associations, but the identifying features of these populations and the synaptic mechanisms of differentiating positive and negative emotional valence have remained unknown...
April 30, 2015: Nature