The Study of Behavioral Endocrinology - What are Hormones?

4 important questions on The Study of Behavioral Endocrinology - What are Hormones?

What are endocrine disrupters?

Similar structures from the environment that can mimic hormones and cause the same effects.

If a capon had no receptors for testosterone, would implanting another testis cause it to display testosterone-dependent traits?

No, sufficient numbers of appropriate hormone receptors must be available for a specific hormone to produce any effects

What do differences of individual hormone levels usually reflect?

Above a certain threshold, differences usually reflect complex patterns of hormone release, numbers and locations of hormone receptors, and the efficiency of those recptors in triggering signal transduction pathways that ultimately affect gene transcription.

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When there are differences in the expression of a behavior, does that indicate that hormone concentrations in the blood differ?

To a certain extent this assumption is true. A minimal amount of hormone is required to activate sufficient receptors in neural networks to affect behavior. However, above that threshold, individual differences in hormone concentrations generally do not affect behavior

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