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Understanding Biological Analysis in Psychology: Key Principles and Research Insights

This overview explores the principles defining the biological level of analysis in psychology. It details how behavior is influenced by genetic factors, illustrated through twin studies that address the nature vs. nurture debate. The Diathesis-Stress Model showcases the link between biological vulnerabilities and behavioral outcomes, such as autism. Additionally, it emphasizes the role of animal research in understanding human behavior, alongside the relevance of biological correlates like neurotransmitters and hormones. Discover the essential research methods and ethical considerations involved.

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Understanding Biological Analysis in Psychology: Key Principles and Research Insights

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  1. General Learning Outcome #2 By: David Rivera-Beck and Sam Bender

  2. Explain how principles that define the biological level of analysis may be demonstrated in research (that is, theories and/or studies)

  3. Command Terms • EXPLAIN = give a detailed account including reasons or causes • DEFINE = give the precise meaning of a word, phrase, concept or physical quantity

  4. Principle #1:Behavior can be innate because it is genetically based

  5. Innate • To be born with

  6. How can this be studied? • Observing twins • This helps study nature vs. nurture • Nature vs. Nurture = do you act the way you act because of your genes or if you act because of the way you were raised • Uses monozygotic (mainly) and dizygotic • Video! • http://www.youtube.com/watch?v=J71L_15mO4M&feature=relmfu

  7. How can this be studied? • Diathesis-Stress Model • Basic Model -> -> -> • <- <- <-Actual Model

  8. Diathesis-Stress Model • Shows the behavioral outcome of biological and genetic vulnerability • This one explains the relationships with children and their parents and the chance of suicide

  9. What else? • Innate birth defects that deal with mental disorders • Examples: Autism (effects behavior) and leukodystodies (effects movement, speaking, vision, hearing, and mental development)

  10. Principle #2:Animal research can provide insight into human behavior

  11. Insight • In psychology it is the understanding or the relationship that helps interpret a problem

  12. How can this be studied? • Animal research is used to make discoveries in medicine and safety products • In psychology animals are used to grow organs • There are many ethical problems with these experiments

  13. How can this be studied? • Most experiments deal with ablation and lession • ABLATION = remove • LESION = damage • These are used to observe how the brain reacts under MRIs and PETs

  14. Why is animal research inportant? • http://www.youtube.com/watch?v=6RL_KZ2bAQE

  15. Principle #3:There are biology correlates with behavior

  16. Correlate • In relation with

  17. How can this be studied? • Neurotransmitters and hormones are studied

  18. Neurotransmitters • Some neurotransmitters and their functions

  19. Hormones • An example how hormones can effect your behavior! • http://www.youtube.com/watch?v=6ds5c0Dnk9c • Hormones effect your thinking by increasing or decreasing an emotion

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