Intro to Brain & Behavior Part 2

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  1. Endocrine System
    A system of various glands that is activated by stress.
  2. Hypothalamic Pituitary Andrenal (HPA) Axis
    Consists of Endocrine System. Hypothalamus activated (Stress), sends hormones to pituitary glands, releases hormones into bloodstream and activates adrenal glands, which releases cortisol and adrenaline.
  3. Negative Feedback Loop
    Once no more hormones are needed, adrenal glands tell hypothalamus to "shut off", which then tells pituitary glands to shut off.
  4. H. Pylori
    H. Pylori (Bacteria lining stomach). 2/3 world population have H. Pylori. Doesn't effect most people.
  5. Peptide Ulcer
    2 known causes: Stress (Psychological); H. Pylori (Bacteria lining stomach)
  6. Glucocorticoids
    • Adrenaline ( epinephrine )
    • Noradrenaline ( norepinephrine )
  7. Stress effects on the immune system (Immunosuppression)
    • Directly via cortisol ( go into immune and shut it down/hinder )
    • Cognitive effects ( Psychological stress )
  8. Environmental Factors
    • Stress Immunization
    • Epigenetics
  9. Stress immunization ( Environmental Factor )
    The idea that mild stressearly in life makes one more resilient to later stress.
  10. Epigenetics
    • A way to inherit things genetically from parents. ( How the DNA is expressed/ used ).
    • Stress can alter how genes are expressed. 
  11. Stressor
    Anything that can trigger mental & physical stress.
  12. Homeostasis
    Body's always trying to achieve balance.
  13. Allostasis
    the process by which the body responds to stressors in order to regain homeostasis.
  14. What year were was the biological concept worked out?
  15. What year did the paradigm shift happen? And what was the paradigm shift?
    Happened towards the end of the 1950s, and the shift was more towards a psychology/mind approach
Card Set:
Intro to Brain & Behavior Part 2
2017-04-03 17:46:52
Unit 2 Stress 2/28/17
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