Indirect not restricted to direct synaptic responses

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Indirect: not restricted to direct synaptic responses, have other functions that can  regulate transcription/genetic effects Testosterone and Agression Fraternities – association b/w rowdy fraternities and higher testosterone level Non-trial vs. trial lawyers 11/16/10 Testosterone and Dominance     STUDY: Before/during world cup soccer match – fans of both teams had equal  testosterone After match, fans of winning team had higher levels of testosterone than loosing  team Suggests that testosterone level do not  cause dominance Sexually Dimorphic Nucleus of the Preoptic Area (in Rat)     Size of nucleus differs between males/females Interstitial Nuclei of the Anterior Hypothalamus     Controls sexual behavior – increase in mass density between men and women In gay men – Nuclei looked more like straight women then straight me
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Differences in Brain Size     Men’s brains are ~10% larger overall Main driver of difference is the difference in body size (i.e. men are on average  larger than women) No difference once corrected for intracranial size Differences in Brain Metabolism     Evidence that women have higher rates of blood flow and glucose metabolism –  negatively correlated with brain size Women have higher brain metabolism/use more glucose than men 
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11/16/10 Cultural Differences     Truk Culture – aggression, drinking, strength emphasized as important to young  men Related to food gathering – had to go out on boats and fish Had to be brave/risk-taking Tahiti Culture – men more peaceful, less aggressive, becoming a man was not  contingent of being “macho” Water around Tahiti = much calmer Other sources of food besides fishing, like farming How does the culture in which a person develops affect their stable,   internal characteristics? Are there aspects of personality that are similar across culture? Truks/Tahitians – idea that men/women have difference roles and appropriate  definitions for those roles How does society shape minds?
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