Memory block: A consequence of conflict resolution

Etsuro Ito, Miki Yamagishi, Dai Hatakeyama, Takayuki Watanabe, Yutaka Fujito, Varvara Dyakonova, Ken Lukowiak

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Food deprivation for 1 day in the pond snail Lymnaea stagnalis before aversive classical conditioning results in optimal conditioned taste aversion (CTA) and long-term memory (LTM) formation, whereas 5-day food deprivation before training does not. We hypothesize that snails do in fact learn and form LTMwhen trained after prolonged food deprivation, but that severe food deprivation blocks their ability to express memory. We trained 5-day food-deprived snails under various conditions, and found that memory was indeed formed but is overpowered by severe food deprivation. Moreover, CTA-LTM was context dependent and was observed only when the snails were in a context similar to that in which the training occurred.

Original languageEnglish
Pages (from-to)1699-1704
Number of pages6
JournalJournal of Experimental Biology
Volume218
Issue number11
DOIs
Publication statusPublished - 2015 Jun 1
Externally publishedYes

Keywords

  • Conditioned taste aversion
  • Context
  • Food deprivation
  • Long-term memory
  • Lymnaea

ASJC Scopus subject areas

  • Animal Science and Zoology
  • Ecology, Evolution, Behavior and Systematics
  • Molecular Biology
  • Physiology
  • Insect Science
  • Aquatic Science
  • Medicine(all)

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  • Cite this

    Ito, E., Yamagishi, M., Hatakeyama, D., Watanabe, T., Fujito, Y., Dyakonova, V., & Lukowiak, K. (2015). Memory block: A consequence of conflict resolution. Journal of Experimental Biology, 218(11), 1699-1704. https://doi.org/10.1242/jeb.120329