PSYCH C116 Chapter Notes - Chapter 1-2: Commodore 16, Bioassay, Radioimmunoassay
6 Apr 2016
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Hormones influence behavior, behavior influences hormone concentrations. Hormones change gene expression or the rate of cellular function, and they affect behavior by increasing the probability of a behavior in response to a stimulus by affecting sensory systems, integrators, and effectors. Berthold: testes in roosters experiment: testes are transplantable, transplanted testes can function and produce sperm, because testes functioned normally after nerves were severed, there are no specific nerves directing testicular function. How hormones may affect behavior: input systems (sensory systems, central processing systems (central nervous system, output systems (effectors, e. g. muscles) Adaptive function: three types of evidence for causal links between hormones and behavior. Behavior dependent on a certain hormone should diminish when the source/action of the hormones are reduced. Behavior should reappear when the hormone is reintroduced. Hormone levels and the behavior should be change together. Can be stored in endocrine cells and are released into circulatory system by exocytosis. Soluble in blood so do not require carrier proteins.
