18 Horm & M behav 2

18 Horm & M behav 2 - Why the Differences in...

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Why the Differences in Components? A. Effects of hormone on  peripheral structures  (genitalia) 1. Penile sensitivity 2. Erectile capacity (motor neurons, penile muscles) B. Effects of hormone on  central structures  (brain, CNS) 1. Sexual motivation
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Central Effects? Methods of eliminating T : 3.  antiandrogens, GNRH antagonists, etc… 2.  clinical populations 1.  castration
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Castration as Rx for Sex Crimes: Central Effects   Pr e  c astrati o n   Post c astrati o n   Masturb ation:   87%   3%    (all <1 - 3x/ wk)   In t e r course:   64%   18%   ÔMÕ  vs.  ÔIÕ:   ÔMÕ  > ÔIÕ   ÔIÕ  > ÔMÕ   Heim (1981) Study : 39 castrated male volunteers, 4 years post castration Conclusion : Stronger effect of castration on desire than on ability Results :
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Castration of Male Guinea Pig Hormone level does not completely predict amount of behavior
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Men with Low Testosterone Eugonadal  (no gonads): 
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18 Horm &amp;amp; M behav 2 - Why the Differences in...

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