Affiliation:
1. Rutgers University, Camden
Abstract
Five albino and 5 hooded rats were administered 12 successive ½-hr. adaptation sessions of continuous reinforcement under 23½-hr. cycles of food deprivation. All Ss adjusted to the cyclic deprivation within the 12 sessions, but no significant difference in over-all rate or final level of adaptation by the two strains was observed. However, a significant difference in mean number of bar presses by the two strains on Sessions 5 to 8 suggests the need for allowing at least 8 days of adaptation to such conditions before Ss are used in operant studies.