Conditioned inhibition and the UCS-CS interval
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چکیده
منابع مشابه
Conditioned inhibition of fear resulting from negative CS-US contingencies.
Two experiments are reported which indicate that negative contingencies between CSs and shock set up conditioned inhibitors. In Experiment 1, this inhibition was measured by retardation in the subsequent acquisition of a CER to the CS. Stimuli with greater negative CS-US contingencies were more retarded in CER acquisition; various control procedures were employed. In Experiment 2, inhibition wa...
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A tachycardic response was classically conditioned in thirsty pigeons using water as an unconditioned stimulus and localized lights as conditioned stimuli. This was successful in 6 out of 9 birds. In one experiment the subjects had their heads immobilized so that the positions of the stimuli within the visual field could be precisely specified. When the stimuli were shifted from the binocular t...
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It has been hypothesized that increasing CS longevity affects performance on trace conditioning. Using a hippocampal model, we find that increasing CS and US longevity increases learnable trace interval. As a matter of fact, over a modest range, maximal learnable trace interval is approximately a linear function of CS/US longevity.
متن کاملHippocampectomy disrupts trace eye-blink conditioning in rabbits.
The role of the hippocampus (HPC) in trace eye-blink conditioning was evaluated using a 100-ms tone conditioned stimulus (CS), a 300- or 500-ms trace interval, and a 150-ms air puff unconditioned stimulus (UCS). Rabbits received complete hippocampectomy (dorsal & ventral), sham lesions, or neocortical lesions. Hippocampectomy produced differential effects in relation to the trace interval used....
متن کاملEffects of CS amount on conditioned taste aversion at different CS-US intervals
Previous studies on the effect of CS amount/duration on the conditioning of taste aversion have reported that animals having greater contact with the CS acquire greater aversion. These findings appear to contradict studies of es preexposure, which show that greater contact with the CS results in less aversion. In the present research, the effect of CS amount was shown to depend on the CS-US int...
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ژورنال
عنوان ژورنال: Animal Learning & Behavior
سال: 1976
ISSN: 0090-4996,1532-5830
DOI: 10.3758/bf03214039