Lever holding and avoidance in the rat, with constant current and constant voltage UCS
Psychonomic SciencePublished 1 March 1970
Peter Grigg
Citations2
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TL;DR
Rats were given lever-press avoidance trials with constant current (CC) or constant voltage (CV) UCS and a lever-holding response appeared as an increasing function of intensity of CC but not of CV shock.
Abstract
Rats were given lever-press avoidance trials with constant current (CC) or constant voltage (CV) UCS. A wide range of intensities of CC and CV shock were used to train groups of 10 Ss each. A lever-holding response appeared as an increasing function of intensity of CC but not of CV shock.
Keywords
MedicineNeuroscienceBiochemistry, Genetics and Molecular Biology
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Bar holding behavior was stronger and more stable under the release condition than the training condition, and effects were related to the relative shock duration of onbar versus offbar shocks.
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The results of Experiment 2 provided evidence against bar holding and CS discriminability explanations of poor bar-press avoidance, while supporting the idea that conditioned freezing responses interfere with bar pressing.
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Cumulative bar-holding-time records showed that holding occurred frequently on the second bar but hardly ever on the first, indicating that bar- holding is more "perserverative" than "preparatory".
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