PSYC 1000 Chapter Notes - Chapter 38: Security Alarm, Hans Selye, Walter Bradford Cannon

• School: University of Guelph
• Department: Psychology
• Course: PSYC 1000
• Professor: Dan Meegan

Document Summary

Stress- the process by which we perceive and respond to certain events, called stressors, that we. Psyc module 38 stress and health appraise as threatening or challenging. The stress response is part of a unified mind-body system. Extreme cold, lack of oxygen, and emotion-arousing events all trigger an outpouring of the stress hormones epinephrine, and norepinephrine from the core of the adrenal glands. When alerted by brain pathways, the sympathetic nervous system increases heart rate, respiration, etc. This prepares the body for an adaptive response that cannon called fight or flight. On orders from the cerebral cortex (from the hypothalamus and pituitary gland), the outer part of the adrenal glands secrete glucocorticoid stress hormones, such as cortisol. In a fight or flight scenario, epinephrine is the one handing out the guns, glucocorticoids are the ones drawing up blueprints for aircrafts needed for the war effort. Studied animals reactions to various stressors, such as an electric shock and surgery.