THE STRESS RESPONSE
Threatening image is perceived by eyes
Image processed by visual cortex
Visual cortex signals amygdala
Amygdala recognises threat and signals hypothalamus
Hypothalamus
Pituitary Gland
Adrenal Gland
Physiological responses
controls body temperature and daily cycles
controls release of hormones
Increased heart rate and blood circulation
Dilated pupils
Increased breathing rate
More glucose released
Fight or flight response
Survival instinct
Intended to be for short term only
Stimulates HPA system
anterior lobe: releases FSH, LH, TSH, growth hormone, prolactin
activates sympathetic nervous system
triggers fight or flight response
adrenal cortex releases cortisol
adrenal medulla releases adrenaline
two glands located above kidneys
maintains metabolism during stress response
posterior lobe: releases oxytocin
External stimuli triggers response