Biology and Behavior Intro and Principles

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Introduction and overview of key principles for Unit 1 - Biology and Behavior. Introductory high school psychology.

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  • Men - testosterone Women - Estrogen
  • Hormones and chemicals run through body Exercise, Health = feeling better (adreniline) Fear & stress = veins constrict
  • Electrical impulses
  • Electrical impulses
  • Not only physiological features, but behavioral traits, as well. Dad more extroverted; mom introverted. I ’ m like mom; sister is like dad.
  • Not only physiological features, but behavioral traits, as well. Dad more extroverted; mom introverted. I ’ m like mom; sister is like dad.
  • behaviorial, chemical, genetic research inform human behavior Ethics (can ’ t use humans)
  • behaviorial, chemical, genetic research inform human behavior Ethics (can ’ t use humans)
  • behaviorial, chemical, genetic research inform human behavior Ethics (can ’ t use humans)
  • One way to investigate these claims is through twin studies. Identical twins (technically known as monozygotic or MZ twins) develop from the same fertilised egg, which splits at conception to produce two individuals with the same genetic make-up.
  • behaviorial, chemical, genetic research inform human behavior Ethics (can ’ t use humans)
  • behaviorial, chemical, genetic research inform human behavior Ethics (can ’ t use humans)
  • behaviorial, chemical, genetic research inform human behavior Ethics (can ’ t use humans)
  • behaviorial, chemical, genetic research inform human behavior Ethics (can ’ t use humans)
  • Biology and Behavior Intro and Principles

    1. 1. Biological Perspective Key Principles
    2. 2. PRINCIPLE: There are biological correlates of behavior
    3. 3. The Brain is our thought center
    4. 4. Chemicals and hormones and their transmission throughout our body influence behavior, cognitions and emotions
    5. 5. Physiology
    6. 6. Neuron
    7. 7. PRINCIPLE: Behavior can be innate because it is genetically- based.
    8. 8. PRINCIPLE: Behavior can be innate because it is genetically- based.
    9. 9. Animal research can provide insight into human behavior
    10. 10. Animal Research
    11. 11. •Aim/Research Question •Design ◦Method ◦Participants ◦Procedure •Results •Conclusion Are You a Natural?
    12. 12. Twin Studies
    13. 13. •Aim/Research Question Are You a Natural? To determine with a reasonable degree of confidence which psychological characteristics appear to be determined primarily by genetic factors and which are molded more by environment.
    14. 14. •Design ◦Method ◦Participants ◦Procedure Are You a Natural? Qualitative & Quantiative (interviews, surveys, tests) Identical twins reared apart 1 week visit 4 personality tests 3 aptitude tests occupational inventories 2 intelligence tests Checklist of household belongings Measurement of parenting Life History Interview Psychiatric Interview Sexual History Interview ALL DONE INDIVIDUALLY
    15. 15. •Results Are You a Natural? Correlations for characteristics measured were remarkably similar. They were close to 1.00 and no lower than .700 for MZA and MZT identical twin pairs.
    16. 16. •Conclusion Are You a Natural? Findings indicate that genetic factors appear to account for most of the variations in a variety of human characteristics. Genetically identical humans reared apart grew into adults who were extraordinarily similar in basic psychology and personality.

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