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Haddon, J. E.; Killcross, A. S. – Journal of the Experimental Analysis of Behavior, 2005
There is much debate as to the extent and nature of functional specialization within the different subregions of the prefrontal cortex. The current study was undertaken to investigate the effect of damage to medial prefrontal cortex subregions in the rat. Rats were trained on two biconditional discrimination tasks, one auditory and one visual, in…
Descriptors: Brain, Animals, Cues, Specialization
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Berg, Mark E.; Grace, Randolph C. – Journal of the Experimental Analysis of Behavior, 2004
In Phase 1, 4 pigeons were trained on a three-component multiple concurrent-chains procedure in which components differed only in terms of relative terminal-link entry rate. The terminal links were variable-interval schedules and were varied across four conditions to produce immediacy ratios of 4:1, 1:4, 2:1, and 1:2. Relative terminal-link entry…
Descriptors: Animals, Animal Behavior, Behavioral Science Research, Intervals
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Ghosh, Natasha; Lea, S. E. G.; Noury, Malia – Journal of the Experimental Analysis of Behavior, 2004
Two experiments examined pigeons' generalization to intermediate forms following training of concept discriminations. In Experiment 1, the training stimuli were sets of images of dogs and cats, and the transfer stimuli were head/body chimeras, which humans tend to categorize more readily in terms of the head part rather than the body part. In…
Descriptors: Animals, Animal Behavior, Behavioral Science Research, Generalization