Activity change under deprivation as a function of age.

Abstract

Food deprivation (for 48 hr.) of rats 31-35 days of age to much larger increases in activity, measured as movement across the midline of a stationary cage, than were found in older rats in earlier studies using the same apparatus. When later subjected to water deprivation, the rats appeared to become less active. (PsycINFO Database Record (c) 2006 APA, all rights reserved)