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Direct linkKim, Jee Hyun; Richardson, Rick – Learning & Memory, 2009
Several recent studies report that neurotransmitters that are critically involved in extinction in adult rats are not important for extinction in young rats. Specifically, pretest injection of the [gamma]-aminobutryic acid (GABA) receptor inverse agonist FG7142 has no effect on extinction in postnatal day (P)17 rats, although it reverses…
Descriptors: Animals, Fear, Pretests Posttests, Experiments
Urcelay, Gonzalo P.; Lipatova, Olga; Miller, Ralph R. – Learning and Motivation, 2009
Three Pavlovian fear conditioning experiments with rats as subjects explored the effect of extinction in the presence of a concurrent excitor. Our aim was to explore this particular treatment, documented in previous studies to deepen extinction, with novel control groups to shed light on the processes involved in extinction. Relative to subjects…
Descriptors: Control Groups, Classical Conditioning, Animals, Experiments
