Habituation under stress: Shocked mice show nonassociative learning in a T-maze

Denis Mitchell, Eugene W. Osborne, Michael W. O'Boyle

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

Abstract

Conflicting predictions of reinforcement and neophobia-arousal theories were evaluated in a simple choice task. Four groups of C57BL/6J mice were administered daily two-trial tests in a uniform T-maze for 10 consecutive days. For three groups, the contingencies of footshock treatments were manipulated to reinforce alternation, perseveration, or both. A control group that was not administered footshock alternated, but all three groups that were stressed perseverated more and more across tests, despite the differences in reinforcement contingencies. These results are inconsistent with the predictions of reinforcement theory but consistent with the view that stressed or aroused animals are neophobic and use nonassociative learning (habituation) to distinguish between novel and familiar alternatives.

Original languageEnglish
Pages (from-to)212-217
Number of pages6
JournalBehavioral and Neural Biology
Volume43
Issue number2
DOIs
StatePublished - Mar 1985

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