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Prog Neuropsychopharmacol Biol Psychiatry. 2018 Dec 20;87(Pt A):11-21. doi: 10.1016/j.pnpbp.2017.09.003. Epub 2017 Sep 5.

Behavioral and neural mechanisms underlying habitual and compulsive drug seeking.

Author information

1
Department of Psychological and Brain Sciences, Institute for Neuroscience, 3474 TAMU, Texas A&M University, College Station, TX 77843, USA. Electronic address: rachelsmith@tamu.edu.
2
Department of Psychological and Brain Sciences, Institute for Neuroscience, 3474 TAMU, Texas A&M University, College Station, TX 77843, USA. Electronic address: llaiks15@tamu.edu.

Abstract

Addiction is characterized by compulsive drug use despite negative consequences. Here we review studies that indicate that compulsive drug use, and in particular punishment resistance in animal models of addiction, is related to impaired cortical control over habitual behavior. In humans and animals, instrumental behavior is supported by goal-directed and habitual systems that rely on distinct corticostriatal networks. Chronic exposure to addictive drugs or stress has been shown to bias instrumental response strategies toward habit learning, and impair prefrontal cortical (PFC) control over responding. Moreover, recent work has implicated prelimbic PFC hypofunction in the punishment resistance that has been observed in a subset of animals with an extended history of cocaine self-administration. This may be related to a broader role for prelimbic PFC in mediating adaptive responding and behavioral flexibility, including exerting goal-directed control over behavior. We hypothesize that impaired cortical control and reduced flexibility between habitual and goal-directed systems may be critically involved in the development of maladaptive, compulsive drug use.

KEYWORDS:

Goal directed; Habits; Prefrontal cortex; Punishment; Striatum

PMID:
28887182
PMCID:
PMC5837910
[Available on 2019-12-20]
DOI:
10.1016/j.pnpbp.2017.09.003
[Indexed for MEDLINE]

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