Arousal and impairment: Temperature effects on following during imprinting.

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Abstract
Found that following during imprinting was negligible if white leghorn chicks (N = 135) were imprinted at a temperature warmer or the same as the one to which they had been adapted. Following was very substantial, however, if Ss were imprinted at a temperature colder than the one to which they had been adapted. This experienced cold effect subsequently held constant over a range of adaptation-to-imprinting temperatures approaching extremes of hot or cold. Also, the magnitude of the effect 1st increased, then decreased, as imprinting temperature was decreased from a constant adaptation level. The decline was shown to be related to: time, overt behavior, body temperature, and distress calling in ways suggesting probable physiological impairment from adaptation to cold, rather than any decline in the stimulative, i.e., neural arousal effects of experienced cold. (PsycINFO Database Record (c) 2006 APA, all rights reserved)

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