The role of voluntary exercise in enriched rearing: A behavioral analysis

Susanna Pietropaolo, Joram Feldon, Enrico Alleva, Francesca Cirulli, Kay Yan Benjamin Yee

Research output: Journal article publicationJournal articleAcademic researchpeer-review

79 Citations (Scopus)

Abstract

The effects of postweaning enriched rearing and home cage voluntary wheel-running exercise in adulthood were contrasted on a comprehensive battery of tests designed to assess mnemonic, attentional, emotional, and motor functions. In a 2 x 2 factorial design, female C57BL/6 mice were housed in groups in either standard or enriched cages, which were equipped with either a running or a locked wheel. They were maintained in the corresponding housing conditions for 2 months postweaning prior to, and throughout, testing. Enriched rearing was associated with anxiogenesis, hypolocomotor activity, enhanced motor skills, retarded extinction of conditioned responding, and improved water maze performance. Exercise as such enhanced motor coordination and facilitated extinction of contextual conditioning. Evidence for an interaction between enrichment and exercise was apparent in the open field test, conditioned freezing to a tone stimulus, prepulse inhibition, and acquisition of water maze reference memory. Hence, care should be taken to control for the unique contribution of wheel-running exercise when it is included as an integral component of the enrichment procedure.
Original languageEnglish
Pages (from-to)787-803
Number of pages17
JournalBehavioral Neuroscience
Volume120
Issue number4
DOIs
Publication statusPublished - 1 Aug 2006
Externally publishedYes

Keywords

  • Enriched environment
  • Mouse
  • Neurobehavioral plasticity
  • Running wheel
  • Voluntary physical exercise

ASJC Scopus subject areas

  • Behavioral Neuroscience
  • Clinical Psychology

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