Neurogenetics of motivation for physical activity

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Movement is energetically costly, yet many animals travel vast distances as part of their normal life history. From a Darwinian evolutionary perspective, this would be unexpected unless it provided some fitness advantage for survival or reproductive success. Movement is often necessary to find food, shelter, or mates. The natural reward circuit is defined as a collection of interconnected brain regions involved in the perception of pleasure. In the 1950s, Olds and Milner conducted experiments with rats placed in operant boxes in which a lever could be pressed by the rat on a voluntary basis that would deliver mild electric shocks to various parts of the brain through differential placement of the electrode. Dopamine has historically been considered the substrate for reward, and there is abundant evidence in the literature supporting this idea. For example, dopamine levels increase in extracellular spaces in the nucleus accumbens in response to inherently rewarding stimuli such as sweet flavor orgasms and drugs of abuse.

Original languageEnglish (US)
Title of host publicationRoutledge Handbook of Sport and Exercise Systems Genetics
PublisherTaylor and Francis
Pages94-106
Number of pages13
ISBN (Electronic)9781351380164
ISBN (Print)9781138504851
DOIs
StatePublished - Jan 1 2019

Fingerprint

Reward
Rats
Motivation
Dopamine
Brain
Orgasm
Pleasure
Flavors
Nucleus Accumbens
Extracellular Space
Street Drugs
Shock
Electrodes
Animals
Food
Networks (circuits)
Substrates
Experiments

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Medicine(all)

Cite this

Rhodes, J. S. (2019). Neurogenetics of motivation for physical activity. In Routledge Handbook of Sport and Exercise Systems Genetics (pp. 94-106). Taylor and Francis. https://doi.org/10.4324/9781315146287-8

Neurogenetics of motivation for physical activity. / Rhodes, Justin S.

Routledge Handbook of Sport and Exercise Systems Genetics. Taylor and Francis, 2019. p. 94-106.

Research output: Chapter in Book/Report/Conference proceedingChapter

Rhodes, JS 2019, Neurogenetics of motivation for physical activity. in Routledge Handbook of Sport and Exercise Systems Genetics. Taylor and Francis, pp. 94-106. https://doi.org/10.4324/9781315146287-8
Rhodes JS. Neurogenetics of motivation for physical activity. In Routledge Handbook of Sport and Exercise Systems Genetics. Taylor and Francis. 2019. p. 94-106 https://doi.org/10.4324/9781315146287-8
Rhodes, Justin S. / Neurogenetics of motivation for physical activity. Routledge Handbook of Sport and Exercise Systems Genetics. Taylor and Francis, 2019. pp. 94-106
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