PSY 351 Chapter Notes - Chapter 1: Cerebral Cortex, Serotonin, Limbic System
17 Apr 2017
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Psychology: diathesis stress model- only when risk factor and trigger or stress come together does a full blown disorder emerge, cerebral cortex damaged in phineas gage"s accident. Cerebral cortex responsible for most advanced thinking processes; Hypothalamus regulates eating drinking and sexual behavior in addition to basic emotional processing. Hippocampus plays role in memory: seratonin plays role in emotional well being, particular depression and anxiety and dysfunctional behavior like aggressive impulses, dopamine -neurotransmitter in reward and reinforcement. Plays role in muscle disorders as well like parkinsons: norepinephrine cocaine and amphetamines prolong by slowing reuptake process--- causing stimulating effects of drug. When there is too little in the brain persons mood is depressed. Gaba inhibits actions of other neurotransmitters and plays important role in anxiety symptoms: epigenetics. Indicates that environmental conditions can affect the expression of genes. Dna can be chemically altered by different environmental conditions, resulting in the genes being turned on or off.
