PSYC 2301 Lecture Notes - Lecture 5: Lymph Node, Thymus, Negative Affectivity
17 Oct 2015
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Document Summary
Stress: negative emotional experience that is involves biochemical, physiological, psychological and behavioural changes which are directed towards altering or accommodating stressful effect. Stress is caused by exposure to a stressor (a stressor is something that stimulates stress response what stresses you out e. g. school) Stressor: event, situation, experience that triggers stress (. g. bad relationships, noise, overcrowding, work-related actives, environmental factors) stress can be triggered by anything depending on person. Theories/models of stress: general adaption syndrome, flight-or-flight, tend-and-befriend. Chronic stress can lead to physiological effects (ulcers, enlarged adrenal cortex, shrinking of thymus and lymph glands) 3 phases: alarm (mobilize to meet threat- similar to fight/flight, low resistance), Resistance (cope through confrontation resistance is high and balanced is maintained), exhaustion (lack of physical resources due to stress resistance is below normal) Limitations; limited role of psychological factors, response to stressors are uniform, stress only exists when there is stress.
