Incoming info into Thalamus Signal sent to Amygdila (decodes emotions) Transmitted to Hypothalamus (Responds by initiation F or F) Hypo. sends nerve impulse down spine Hypo. activates Pituitary gland (Releases Hormone – ACTH) THE BRAIN
Nerve impulse from Hypo./ ACTH both reach Adrenal Nerve impulse signals chromofin cells – Epinephrine ACTH signals cells to produce Cortisol Both chemicals released from Adrenal gland Cortisol raises blood sugar (Frees fatty acids) Epinephrine reaches liver (Increases glucose production – more potential energy – ATP) –Reaches lungs (relaxes muscles/increases respiration (more O2 for muscles) –Reaches Heart (Beats faster – circulates energy faster) THE BODY
FIGHT OR FLIGHT OVERVIEW Brain receives/sends signals to pituitary Pituitary releases messengers to Adrenal Adrenal produces Epinephrine and Cortisol Cortisol frees fatty acids/raises sugar Adrenaline increases resp. allows more o2/energy (ATP)
Thalamus - decides where to send incoming sensory data (from eyes, ears, mouth, skin) Sensory cortex - interprets sensory data Hippocampus - stores and retrieves conscious memories; processes sets of stimuli to establish context Amygdala - decodes emotions; determines possible threat; stores fear memories Hypothalamus - activates "fight or flight" response TEXT FROM http://health.howstuffworks.com/mental-health/human-nature/other-emotions/fear.htmhttp://health.howstuffworks.com/mental-health/human-nature/other-emotions/fear.htm PATHS OF FEAR
Increase Heart rate Pupils dilate (take in light) Veins in skin tighten – allow flow to major muscles (chills – less blood in skin) Muscles tense (goose bumps) Focus on immediate SO WHAT DOES THIS RESPONSE LOOK LIKE?
ACTIVITY: Play the fight or flight game http://cmhc.utexas.edu/stressrecess/Level_One/fof.html