Abstract
"In rats given runway training under 20-21-hr. food deprivation, it was found that the group reinforced with ten 45-mg. food pellets showed faster acquisition in both starting and running times than the group reinforced with only one such pellet. During extinction, the reverse relationship held for running times; starting time differences were not significant. While the acquisition results support previous findings, the extinction data did not." (PsycINFO Database Record (c) 2006 APA, all rights reserved)