Effects of previous body weight level on rats' straight-alley performance

Elizabeth D. Capaldi, John R. Hovancik

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Reduced 90 male Holtzman albino rats to 75% or 90% body weight in 2 experiments. Experimental Ss (n = 45) received straight-alley training under these body weights while controls remained in their home cages. In a subsequent phase all Ss were run in the alley under 90% body weight. In Exp. I weights were adjusted for expected growth while in Exp. II weights were maintained at a constant percentage of ad-lib weight. In both experiments previous experience with 75% body weight facilitated subsequent instrumental performance under 90% body weight only if the 75% body weight had been experienced during straight-alley training. Ss which experienced different body weights in their home cages did not differ in subsequent straight-alley performance. It is suggested that differences in straight-alley learning are associated with different body weights. (PsycINFO Database Record (c) 2006 APA, all rights reserved).

Original languageEnglish (US)
Pages (from-to)93-97
Number of pages5
JournalJournal of Experimental Psychology
Volume97
Issue number1
DOIs
StatePublished - Jan 1 1973

Keywords

  • previous body weight level, straight-alley performance, rats

ASJC Scopus subject areas

  • Medicine(all)

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