Prefrontal cortical regulation of brainwide circuit dynamics and reward-related behavior Academic Article uri icon

Overview

MeSH Major

  • Anhedonia
  • Corpus Striatum
  • Dopaminergic Neurons
  • Motivation
  • Prefrontal Cortex
  • Reward

abstract

  • Motivation for reward drives adaptive behaviors, whereas impairment of reward perception and experience (anhedonia) can contribute to psychiatric diseases, including depression and schizophrenia. We sought to test the hypothesis that the medial prefrontal cortex (mPFC) controls interactions among specific subcortical regions that govern hedonic responses. By using optogenetic functional magnetic resonance imaging to locally manipulate but globally visualize neural activity in rats, we found that dopamine neuron stimulation drives striatal activity, whereas locally increased mPFC excitability reduces this striatal response and inhibits the behavioral drive for dopaminergic stimulation. This chronic mPFC overactivity also stably suppresses natural reward-motivated behaviors and induces specific new brainwide functional interactions, which predict the degree of anhedonia in individuals. These findings describe a mechanism by which mPFC modulates expression of reward-seeking behavior, by regulating the dynamical interactions between specific distant subcortical regions.

publication date

  • January 2016

Research

keywords

  • Academic Article

Identity

Language

  • eng

PubMed Central ID

  • PMC4772156

Digital Object Identifier (DOI)

  • 10.1126/science.aac9698

PubMed ID

  • 26722001

Additional Document Info

start page

  • aac9698

volume

  • 351

number

  • 6268