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Science 12 April 1963:
Vol. 140. no. 3563, pp. 172 - 173
DOI: 10.1126/science.140.3563.172
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Articles

Altruism or Arousal in the Rat?

J. J. Lavery 1 and P. J. Foley 1

1 Defence Research Medical Laboratories, Defence Research Board, Toronto, Canada

If rats are exposed successively to white noise, then to recorded rat squeals, or alternatively to squeals first and then white noise, and if, in both situations, they are allowed to shut off the auditory stimulation by applying pressure on a bar, they will touch the bar more frequently when exposed to white noise. The results indicate that the bar-pressing behavior is the expression of increased activity resulting from the increased stimulation.


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Science 312, 1967-1970
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Science. ISSN 0036-8075 (print), 1095-9203 (online)