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Psychology Colloquium with Thomas Jhou, PhD
WhenWednesday, Apr 10, 2019, 3:30 – 4:30 p.m.
Campus locationPhysics / Astronomy Auditorium (PAA)
Campus roomA114
Event typesLectures/Seminars
Event sponsorsDepartment of Psychology
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Description

Thomas Jhou, PhD
Assistant Professor of Neuroscience
Medical University of South Carolina

Punishment Learning Signals in Rostromedial Tegmental Nucleus
Reward-seeking is essential for survival, but so is the ability to stop reward-seeking in the face of negative consequences (punishment). We previously published work showing a critical role in punishment learning for the rostromedial tegmental nucleus (RMTg), a major GABAergic projection to midbrain dopamine neurons. New data shows a convergence of triply dissociable punishment outcome, prediction, and prediction error signals onto the RMTg, arising respectively from prelimbic, parabrachial, and habenular afferents. These 3 afferents contribute to punishment behavior at correspondingly distinct task phases. Together, these results show that (like DA neurons) the RMTg plays both prospective and retrospective roles in motivated behavior, signaling the valence of actions completed in the recent past, and modulating performance of seeking of rewards in the immediate future.

This free lecture is made possible by a generous endowment from Professor Roger B. Loucks.

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