PSC 168 Lecture Notes - Lecture 9: Longitudinal Study, Acute Stress Reaction, Stressor
Document Summary
Understanding stress: stressor: external event or situation that places a physical or psychological demand, stress: internal response to the stressor, three types of life stressors, life change model (holmes and holmes): all life events (large/small, Life event stress: occurs to most people sometime during their lives. Daily hassles: chronic stress (usually there every day) Hypothesis: greater life change = greater chance of illness. Relationship between lcu level and likelihood of illness: >300: 79% ill: only undesirable changes had negative effects, research is correlational and retrospective in nature. Stress and the immune system: components inhibit immune system functioning, decreased immunity- as a function of stress, stress triggers expression of existing virus cells) cold symptoms these people had chronic stressors. Lymphocytes (b-cells - produce antibodies, t-cells, detect destroy foreign. Stress response causes release of neurohormones, some of which impair or. Cohen (1998) found that 84% got infected with virus, but only 40% developed show weaker immune system.
