Dopamine D2 receptors in the extended amygdala scale the optimization of seeking and avoidance behaviors

titleDopamine D2 receptors in the extended amygdala scale the optimization of seeking and avoidance behaviors
start_date2023/04/25
schedule11h (à confirmer)
onlineno
location_infoAmphithéâtre Serge Kampf
summaryThe ability to optimize and select behavioral strategies is a cardinal and conserved psychophysiological feature for maximizing the chances of survival. Increasing evidence suggests that the mesolimbic dopamine system contributes to these processes. I will discuss recent findings suggesting that such optimization relies on dopamine D2 receptors (D2R) within a subcircuit spanning across the extended amygdala (EA) and the tail of the striatum (TS). Using a mouse model carrying a temporally controlled deletion of D2R within a subcircuit defined by WFS1 neurons, I'll illustrate that intact EA D2R signaling is necessary to regulate homeostasis-dependent food-seeking behaviors in both male and female mice as well as active avoidance learning and innate escape responses in males.
responsiblesSadoul