Aerobic exercise during encoding impairs hippocampus-dependent memory

Keishi Soga, Keita Kamijo, Hiroaki Masaki

Research output: Contribution to journalArticle

Abstract

We investigated how aerobic exercise during encoding affects hippocampus-dependent memory through a source memory task that assessed hippocampus-independent familiarity and hippocampus-dependent recollection processes. Using a within-participants design, young adult participants performed a memory-encoding task while performing a cycling exercise or being seated. The subsequent retrieval phase was conducted while sitting on a chair. We assessed behavioral and event-related brain potential measures of familiarity and recollection processes during the retrieval phase. Results indicated that source accuracy was lower for encoding with exercise than for encoding in the resting condition. Event-related brain potential measures indicated that the parietal old/new effect, which has been linked to recollection processing, was observed in the exercise condition, whereas it was absent in the rest condition, which is indicative of exercise-induced hippocampal activation. These findings suggest that aerobic exercise during encoding impairs hippocampusdependent memory, which may be attributed to inefficient source encoding during aerobic exercise.

Original languageEnglish
Pages (from-to)249-260
Number of pages12
JournalJournal of Sport and Exercise Psychology
Volume39
Issue number4
DOIs
Publication statusPublished - 2017 Aug 1

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Keywords

  • Event-related potentials
  • Familiarity
  • Recollection
  • Source memory

ASJC Scopus subject areas

  • Applied Psychology

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