Cited by 87Neurotransmitter Receptor Influence on BehaviorSubstance Abuse Treatment and OutcomesNeuroendocrine regulation and behavior

Disrupted social development enhances the motivation for cocaine in rats

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Baarendse, Petra J. J., Limpens, Jules H. W., Vanderschuren, Louk J. M. J.·2014·Psychopharmacology

Abstract

Rationale Early social experiences are of major importance for behavioural development. In particular, social play behaviour during post-weaning development is thought to facilitate the attainment of social, emotional and cognitive capacities. Conversely, social insults during development can cause long-lasting behavioural impairments and increase the vulnerability for psychiatric disorders, such as drug addiction.Objectives The aim of this study was to investigate whether a lack of social experiences during the juvenile and early adolescent stage, when social play behaviour is highly abundant, alters cocaine self-administration in rats.Methods Rats were socially isolated from postnatal days 21 to 42 followed by re-socialization until adulthood. Cocaine self-administration was then assessed under a fixed ratio and progressive ratio schedule of reinforcement. Next, cue, cocaine and stress-induced reinstatement of cocaine seeking was determined following extinction of self-administration.Results Early social isolation resulted in an enhanced acquisition of self-administration of a low dose (0.083 mg/infusion) of cocaine, but the sensitivity to cocaine reinforcement, assessed using a dose-response analysis, was not altered in isolated rats. Moreover, isolated rats displayed an increased motivation for cocaine under a progressive ratio schedule of reinforcement. Extinction and reinstatement of cocaine seeking was not affected by early social isolation.Conclusions Early social isolation causes a long-lasting increase in the motivation to self-administer cocaine. Thus, aberrations in post-weaning social development, such as the absence of social play, enhance the vulnerability for drug addiction later in life.

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  1. Pellis SM Pellis V 2009 The Playful Brain: Venturing to the Limits of Neuroscience One world Publications Oxford

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Authors
Baarendse, P. J. J., Limpens, J. H. W., & Vanderschuren, L. J. M. J.
Affiliations
  • University Medical Center Utrecht (NL)
  • Utrecht University (NL)
Corresponding author
Vanderschuren, Louk J. M. J.
Venue
Psychopharmacology
Published
2013-12-06
Volume
231
Issue
8
Pages
1695-1704
ISSN
  • 0033-3158 (ISSN-L)
  • 1432-2072
OpenAlex
W2130258298
Cited by
87
References
76
Citations by year
2026: 2 · 2025: 6 · 2024: 7 · 2023: 8 · 2022: 4 · 2021: 10 · 2020: 7 · 2019: 2 · 2018: 11 · 2017: 12 · 2016: 8 · 2015: 7 · 2014: 2 · 2013: 1
FWCI
2.94
Type
journal article
Language
en
Open access
Locations
  • Psychopharmacology (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • Utrecht University Repository (Utrecht University) (submittedVersion, other-oa)
Funders
National Institute on Drug Abuse (R01DA022628)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Health Sciences › Medicine › Epidemiology › Substance Abuse Treatment and Outcomes
  • Social Sciences › Psychology › Social Psychology › Neuroendocrine regulation and behavior
Keywords
cocaine self-administration, cocaine seeking, social play, drug addiction vulnerability, progressive ratio schedule, fixed-ratio schedules
MeSH terms
Aging, Animals, Cocaine, Cues, Dose-Response Relationship, Drug, Extinction, Psychological, Male, Motivation, Reinforcement Schedule, Self Administration, Social Behavior, Social Isolation, Stress, Psychological, Yohimbine, Dopamine Uptake Inhibitors, Rats, Adrenergic alpha-2 Receptor Antagonists, Drug-Seeking Behavior

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