STRESS, FEAR, AND THE FIGHT OR FLIGHT RESPONSE - PowerPoint PPT Presentation

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STRESS, FEAR, AND THE FIGHT OR FLIGHT RESPONSE

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Title: STRESS, FEAR, AND THE FIGHT OR FLIGHT RESPONSE


1
STRESS, FEAR, AND THE FIGHT OR FLIGHT RESPONSE
2
FIGHT OR FLIGHT OVERVIEW
AMYGDALA
HYPOTHALAMUS
PITUITARY GLAND
ADRENAL GLAND
THROUGHOUT BODY
3
THE HYPOTHALAMUS AND THE PITUITARY GLAND
4
INSIDE THE PITUITARY GLAND
5
THE BRAIN
  • 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)

6
THE ADRENAL GLAND AND INSIDE
7
EPINEPHRINE SPREADS THROUGH THE BODY
8
THE BODY
  • 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)

9
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)
10
WHAT IS FEAR?
11
PATHS OF FEAR
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-h
ealth/human-nature/other-emotions/fear.htm
12
SO WHAT DOES THIS RESPONSE LOOK LIKE?
  • 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

13
ACTIVITY Play the fight or flight
game http//cmhc.utexas.edu/stressrecess/Level_On
e/fof.html
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