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sex - Sex Hormones the brain and behavior Definitions of...

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Sex Hormones, the brain and behavior
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Definitions of Sex Genetic Gonadal Hormonal Morphological Behavioral (gender role behavior) Identity
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Hypothalamus Adenohypophysis Testes or Ovaries Target tissues Control of Sex Hormones Indirect Loop Short Loop Direct Loop GnRH LH, FSH Testosterone or Estrogen & Progesterone neural inputs
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Sexual Dimorphisms Phenotypic differences between males and females They can be: anatomical physiological behavioral cognitive They can be: qualitative quantitiave
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Effects of Sex Hormones Organizational Effects structural sensitive period irreversible masculinization/defeminization Activational Effects act on existing structure no sensitive period reversible
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testes differentiate ovaries differentiate
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Bipotential tissues: Undifferentiated tissue that can differentiate into either a male or female form. Sexual Dimophisms: Structures, functions or behaviors that differ qualitatively or quantitatively between the sexes.
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Castrate male hamster at birth Prototypical Experiment
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