Further Evidence for Swimming‐Based Pica in Rats

Bibliographic Data

ID19276408
AuthorsSadahiko Nakajima (0000-0003-0968-2119, Kwansei Gakuin University, corresponding author)
Year2020
Volume62
Issue1
Pages39-50
Publication date2020-01-01
Open AccessYes
TypeARTICLE
VenueJapanese Psychological Research (JOURNAL)
Journal identifiersISSN: 0021-5368 • E-ISSN: 1468-5884
PublisherWiley (PUBLISHER • GB)
DOI10.1111/jpr.12243
OpenAlexW2905255255
LanguageEN
Citations received2
References cited44

Aberrant pica behavior (i.e., kaolin clay ingestion) has been regarded as a behavioral marker of nausea in rats that cannot vomit because of anatomical and/or neural reasons. The previous study reported that a single swimming session of 40 min generated pica behavior, implying that swimming induces nausea in rats. However, the rats tested in that report were not experimentally naive. The present study successfully replicated swimming‐based pica with experimentally naive rats (Experiment 1). It also showed that pica was observed with pool confinement of 20 min but not with that of 10 min (Experiments 2A and 2B) and that roaming in shallow water did not generate pica (Experiment 3). These results taken together suggest that swimming for at least 20 min induces nausea in rats, implying that rats’ taste aversion learning based on swimming is mediated by gastrointestinal discomfort

Anesthesia · Ingestion · Nausea · Pica (typography) · Taste · Taste aversion · Complementary and Alternative Medicine Studies · Computer Science · Diet and metabolism studies · Internal Medicine · Medicine · Neuroscience · Psychology · Therapeutic Uses of Natural Elements

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