PSYC23H3 Study Guide - Midterm Guide: Locus Coeruleus, Chlordiazepoxide, Implicit Memory
Document Summary
Stress response is the array of physiological adaptations that reestablishes balance: epinephrine & glucocorticoids (cortisol) Increase the cardiovascular tone so o2 can travel more quickly. Repeated challenge repeated vigilance vigilance become overgeneralized (thinking that i should always be alerted even in the absence of stress) Insurmountable chronic stress feeling of helplessness generalized helplessness. Amygdala involved in response to fear-evoking stimuli: receives input from the cortex. Amygdala takes in sensory information that passes the cortex: ex) fear of the familiar voice who have assaulted the person. Amygdala sends signal to the: midbrain & brain stem (ans) Heart races, shallow breathing: frontal cortex. 2 forms of memory: explicit memory: governs recollection of facts. Fearful memories can be overgeneralized after repeated stress: comes from declarative memory. Repeated stimulation of sets of neurons cause the communication across synapse to be strengthened long-term. Severe stress, glucocorticoid exposure can impair ltp in hippocampus: newly enhanced ltp facilitate the amygdala"s implicit memory.
