Dopamine tunes prefrontal outputs to orchestrate aversive processing.

Dopamine tunes prefrontal outputs to orchestrate aversive processing.
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DOI:
10.1016/j.brainres.2018.11.044
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发表时间:
2019-06-15
期刊:
影响因子:
2.9
通讯作者:
Tye KM
Tye KM
中科院分区:
医学3区
文献类型:
--
作者:
Weele CMV;Siciliano CA;Tye KM

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Decades of research suggest that the mesocortical dopamine system exerts powerful control over mPFC physiology and function. Indeed, dopamine signaling in the medial prefrontal cortex (mPFC) is implicated in a vast array of processes, including working memory, stimulus discrimination, stress responses, and emotional and behavioral control. Consequently, even slight perturbations within this delicate system result in profound disruptions of mPFC-mediated processes. Many neuropsychiatric disorders are associated with dysregulation of mesocortical dopamine, including schizophrenia, depression, attention deficit hyperactivity disorder, post-traumatic stress disorder, among others. Here, we review the anatomy and functions of the mesocortical dopamine system. In contrast to the canonical role of striatal dopamine in reward-related functions, recent work has revealed that mesocortical dopamine fine-tunes distinct efferent projection populations in a manner that biases subsequent behavior towards responding to stimuli associated with potentially aversive outcomes. We propose a framework wherein dopamine can serve as a signal for switching mPFC states by orchestrating how information is routed to the rest of the brain.
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