Ultrasound Emission in Infant Rats as an Indicant of Arousal During Appetitive Learning and Extinction
- 19 August 1977
- journal article
- research article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 197 (4305), 786-788
- https://doi.org/10.1126/science.560717
Abstract
Infant rats rewarded for crawling by being allowed to suckle on the dry nipple of an anesthetized dam showed a decreasing rate of ultrasound production during acquisition and an increasing rate during extinction. These results suggest that infant rats can be stressed and are aroused as a result of successive nonrewards just as adult rats are. In addition, these results do not support the hypothesis that infant rats lack inhibitory mechanisms related to poorly developed neural centers.Keywords
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