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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
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Capaldi, E. J.; Martins, Ana P. G.; Altman, Meaghan – Learning and Motivation, 2009
arrow]US associations also survived The memories of the unconditioned stimulus (US) and its absence (No US), symbolized as S[superscript R] and S[superscript N], respectively, may be retrieved on US or No US trials giving rise to four types of associations, S[superscript R][right arrow]US, S[superscript R][right arrow]No US, S[superscript N][right…
Descriptors: Classical Conditioning, Animal Behavior, Rewards, Experimental Psychology
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Pineno, Oskar; Zilski, Jessica M.; Schachtman, Todd R. – Learning and Motivation, 2007
Two conditioned taste aversion experiments with rats were conducted to establish if a target taste that had received a prior pairing with illness could be subject to second-order conditioning during extinction treatment in compound with a flavor that also received prior conditioning. In these experiments, the occurrence of second-order…
Descriptors: Classical Conditioning, Associative Learning, Animals, Animal Behavior
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Amundson, Jeffrey C.; Miller, Ralph R. – Learning and Motivation, 2007
Two lick suppression studies were conducted with water-deprived rats to investigate the influence of spatial similarity in cue interaction. Experiment 1 assessed the influence of similarity of the spatial origin of competing cues in a blocking procedure. Greater blocking was observed in the condition in which the auditory blocking cue and the…
Descriptors: Inhibition, Spatial Ability, Cues, Competition