PSYC 340 Lecture Notes - Lecture 4: Amygdala, Reinforcement Learning, Temporal Lobe
6 Oct 2020
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Document Summary
Memories exist to protect us from future. Shellshock or battle fatigue recurring haunting memories and nightmares, numbed social withdrawal, jumpy anxiety, insomnia. Posttraumatic stress disorder a disorder characterized by haunting memories, nightmares, social withdrawal, jumpy anxiety, numbness of feeling, and/or insomnia that lingers for four weeks or more after a traumatic experience. Severity and persistence of the trauma memory. Survivors of accidents, disasters, and violent and sexual assaults. Greater one"s emotional distress during trauma = higher rick for ptsd symptoms. More frequent of assault experience = more adverse long-term outcomes. Sensitive limbic system increase vulnerability by flooding body with stress hormones. Images of traumatic experience erupt into consciousness. Brain scans of ptsd patients suffering memory flashbacks aberrant and persistent right temporal lobe activation. Combat-exposed men with identical twins who didn"t experience combat. Risk for cognitive difficulties unfocused attention. Ptsd may be over-diagnosed broadening of trauma definition. Survivor resiliency of those who do not develop ptsd.
