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The birdsong example demonstrates how hormones can affect behavior, but as noted, the reciprocal relation also occurs; that is, behavior can affect hormone concentrations. On three separate occasions, women provided a pre-activity, post-activity, and next-morning saliva sample. This is certainly true of deer; relative to stags, female deer rarely display aggressive behavior, and their rare aggressive acts are qualitatively different from the aggressive behavior of aggressive males.



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You must be logged in to post a comment. On three separate occasions, women provided a pre-activity, post-activity, and next-morning saliva sample. Boys are generally better than girls at tasks that require visuospatial abilities. Because of these complexities in the factors influencing human behavior, the study of hormonal effects on sex-differentiated behavior has been pursued in nonhuman animals, for which environmental influences can be held relatively constant.

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