The behavioral pharmacology of effort-related choice behavior: Dopamine, adenosine and beyond

John D. Salamone, Merce Correa, Eric J. Nunes, Patrick A. Randall, Marta Pardo

Research output: Contribution to journalArticle

106 Citations (Scopus)

Abstract

For many years, it has been suggested that drugs that interfere with dopamine (DA) transmission alter the "rewarding" impact of primary reinforcers such as food. Research and theory related to the functions of mesolimbic DA are undergoing a substantial conceptual restructuring, with the traditional emphasis on hedonia and primary reward yielding to other concepts and lines of inquiry. The present review is focused upon the involvement of nucleus accumbens DA in effort-related choice behavior. Viewed from the framework of behavioral economics, the effects of accumbens DA depletions and antagonism on food-reinforced behavior are highly dependent upon the work requirements of the instrumental task, and DA-depleted rats show a heightened sensitivity to response costs, especially ratio requirements. Moreover, interference with accumbens DA transmission exerts a powerful influence over effort-related choice behavior. Rats with accumbens DA depletions or antagonism reallocate their instrumental behavior away from food-reinforced tasks that have high response requirements, and show increased selection of low reinforcement/low cost options. Nucleus accumbens DA and adenosine interact in the regulation of effort-related functions, and other brain structures (anterior cingulate cortex, amygdala, ventral pallidum) also are involved. Studies of the brain systems regulating effortbased processes may have implications for understanding drug abuse, as well as symptoms such as psychomotor slowing, fatigue or anergia in depression and other neurological disorders.

Original languageEnglish (US)
Pages (from-to)125-146
Number of pages22
JournalJournal of the experimental analysis of behavior
Volume97
Issue number1
DOIs
StatePublished - Mar 21 2012

Fingerprint

Choice Behavior
Adenosine
Dopamine
Pharmacology
Nucleus Accumbens
Food
Behavioral Economics
Costs and Cost Analysis
Gyrus Cinguli
Brain
Amygdala
Nervous System Diseases
Reward
Substance-Related Disorders
Fatigue
Depression

All Science Journal Classification (ASJC) codes

  • Experimental and Cognitive Psychology
  • Behavioral Neuroscience

Cite this

Salamone, John D. ; Correa, Merce ; Nunes, Eric J. ; Randall, Patrick A. ; Pardo, Marta. / The behavioral pharmacology of effort-related choice behavior : Dopamine, adenosine and beyond. In: Journal of the experimental analysis of behavior. 2012 ; Vol. 97, No. 1. pp. 125-146.
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The behavioral pharmacology of effort-related choice behavior : Dopamine, adenosine and beyond. / Salamone, John D.; Correa, Merce; Nunes, Eric J.; Randall, Patrick A.; Pardo, Marta.

In: Journal of the experimental analysis of behavior, Vol. 97, No. 1, 21.03.2012, p. 125-146.

Research output: Contribution to journalArticle

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