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Prog Neuropsychopharmacol Biol Psychiatry. 2018 Dec 20;87(Pt B):263-268. doi: 10.1016/j.pnpbp.2017.05.009. Epub 2017 May 10.

Corticolimbic circuitry in the modulation of chronic pain and substance abuse.

Author information

1
Department of Psychiatry, The Semel Institute for Neuroscience and Human Behavior, University of California, Los Angeles, Los Angeles, United States. Electronic address: ataylor1@ucla.edu.

Abstract

The transition from acute to chronic pain is accompanied by increased engagement of emotional and motivational circuits. Adaptations within this corticolimbic circuitry contribute to the cellular and behavioral maladaptations associated with chronic pain. Central regions within the corticolimbic brain include the mesolimbic dopamine system, the amygdala, and the medial prefrontal cortex. The evidence reviewed herein supports the notion that chronic pain induces significant changes within these corticolimbic regions that contribute to the chronicity and intractability of pain. In addition, pain-induced changes in corticolimbic circuitry are poised to impact motivated behavior and reward responsiveness to environmental stimuli, and may modulate the addiction liability of drugs of abuse, such as opioids.

KEYWORDS:

Addiction; Chronic pain; Limbic system; Motivated behavior; Reward

PMID:
28501595
PMCID:
PMC5681440
[Available on 2019-12-20]
DOI:
10.1016/j.pnpbp.2017.05.009
[Indexed for MEDLINE]

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