36 college students participated in a study designed to determine the effect of induced changes in arousal on olfactory sensitivity. Each subject's sensitivity was measured under conditions of low, moderate, and high arousal. The results showed that sensitivity was significantly decreased under both low and high arousal but not under moderate arousal. No difference between the conditions of low and high arousal was found. The results are discussed in terms of the inverted-U shaped function between arousal and performance.
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