Gerald deehan 1xbet online casino, Ph.D. (2009)
Major Professor:
Dr. Stephen Kiefer
Title and Institution:
Post-doctoral Research Fellow, Indiana 1xbet online casino School of Medicine at the Institute for Psychiatric Research
Dissertation:
The effect of differential rearing conditions on the consumption of and operant responding for 1xbet online casino in the Indiana University selectively bred alcohol-preferring (P) and -non-preferring (NP) rat lines
Abstract:
Exposing rats to differential rearing conditions, during early post-weaning development, has been shown to produce changes in a number of behaviors displayed during adulthood. The purpose of the current study was to investigate whether rearing alcohol-preferring (P) and non-preferring (NP) rats in an environmental enrichment condition (EC), a social condition (SC), or an impoverished condition (IC) would differentially affect the consumption of and operant responding for 10% 1xbet online casino . In Experiment 1 rats were tested for both limited access and free access (two bottle choice between water and 1xbet online casino ) consumption of 10% 1xbet online casino . For, Experiment 2 rats were trained to respond in an operant chamber for 1xbet online casino and then provided concurrent access to 10% 1xbet online casino (right lever) and water (left lever). After concurrent access, rats were required to respond over a gradually increasing fixed-ratio schedule for 10% 1xbet online casino and finally a progressive ratio schedule for 10% 1xbet online casino , 15% 1xbet online casino , and 10% sucrose. For Experiment 3 rats were trained to respond for 10% sucrose and then assessed for the maintenance of operant responding for 10% sucrose. The data from this series of experiments shows that EC P rats consumed, responded for, and preferred 10% 1xbet online casino significantly less than their IC P counterparts. Also, EC P rats did not significantly differ from NP rats during any aspect of testing for all experiments. Experiment 3 failed to reveal a significant effect of rearing although there was a line effect that has been previously observed in the literature. Thus, it would appear from these results that rearing in an EC condition acts to protect alcohol-preferring rats from increased levels of consumption of, preference for, and responding for 1xbet online casino compared to rearing in an impoverished environment.