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Psych 460quiz2_3_3key

Psych 460quiz2_3_3key - NAME Quiz 2 Essay(1of 2 3 pts 1...

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Quiz 2 (3/3/10) NAME ___________________ Essay (1of 2) 3 pts 1. Please in your own words and to the best of your ability, explain how the male brain is differentiated during development from the default female pathway. Be specific include the necessary signal(s) and how it organizes the brain (1.5pts) and What happens to a male if its testes are removed right after birth (1.5pts). Male: testosterone converted to estrogen, increases size of SDN (prevents apoptosis in sdn) cortex amygdale etc. and masculinizes and defeminizes. Castration during the critical periodrobs the brain of the testosterone/estrogen preventing the masculinization 2. Please in your own words and to the best of your ability, explain the concept of brain plasticity from whole brain to individual cells (2pts). What aspect of plasticity underlies most forms of mental retardation (1pt). Plastcity refers to the adabtability the ability of the brain tochange, to increase connections in response to enrichment, to rewire in following damage, during
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