PSY 393 Chapter Notes - Chapter .: Prosocial Behavior, Thalamus, Embryonic Stem Cell
Document Summary
Supported by twin, adoption, family studies that indicate a genetic/biological basis for the disease. Regenerating cns neurons by use of stem-cells. Induce embryonic stem cells to differentiate in culture. Schizophrenia | ~14 genes linked to the disease, none found to be consistent cause. Brains with and without schizophrenia differ: hippocampus and cerebral cortex are smaller, may be linked to substance abuse. Biological stressors during fetal development may impair nervous system (predisposition: maternal illness/infection, nourishment, difficult pregnancy/childbirth, stress/trauma, extended labor. Depression | causes found in the chemistry of neurotransmitters. Influenced by diet/taking in b-12 vitamin, omega-3, etc. Alzhei(cid:373)er"s disease | (cid:271)reakdo(cid:449)(cid:374) i(cid:374) (cid:271)rai(cid:374)"s a(cid:271)ilit(cid:455) to tra(cid:374)s(cid:373)it (cid:373)essages a(cid:272)ross (cid:374)euro(cid:374)s: plaques: deposits of beta-amyloid that build up in spaces btwn nerve cells, tangles: gnarled fibers of tau proteins that deposit inside nerve cells. Symptoms: personality change, damage to executive, short-term, long-term memory, aggression. Parki(cid:374)so(cid:374)"s diseases | decrease in dopamine shaking/tremors. Due to progressive deterioration of dopamine producing neurons in substantia nigra (brain)
