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Chapter 2 I: Right-Left Differences in the Brain

Chapter 2 I: Right-Left Differences in the Brain. A.P. Psychology. Do-Now (Discussion). What is it mean to be a “right-brain” vs. “left-brain” dominant person? What does this suggest about the workings of the brain ?. The Brain’s Plasticity. Plasticity:

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Chapter 2 I: Right-Left Differences in the Brain

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  1. Chapter 2 I:Right-Left Differencesin the Brain A.P. Psychology

  2. Do-Now(Discussion) What is it mean to be a “right-brain” vs. “left-brain” dominant person? What does this suggest about the workings of the brain?

  3. The Brain’s Plasticity • Plasticity: • The brain’s ability to change, especially during childhood, by reorganizing after damage or by building new pathways based on experience • Neurogenesis: • The formation of new neurons

  4. The Brain’s Plasticity When is the brain “most plastic?” What are some ways that the brain’s plasticity can benefit people with limited senses (e.g. blind or deaf people)?

  5. The Divided Brain • Lateralization: • The brain’s left and right hemispheres serve different physiological and cognitive functions • Most apparent after brain damage • Left hemisphere: dominant/major • Right hemisphere: subordinate/minor

  6. The Divided Brain Why do you think a higher percentage (90%) of people are right-handed?

  7. The Divided Brain • Corpus Callosum: • The large band of neural fibers connecting the two brain hemispheres and carrying messages between them

  8. The Divided Brain • Split Brain: • A condition resulting from surgery that isolates the brain’s two hemispheres by cutting the fibers (mainly those of the corpus callosum)

  9. Visual Perception of the Split Brain

  10. Testing the Divided Brain

  11. Testing the Divided Brain

  12. The Divided Brain • What is Split Brain? • What are the causes of this condition? • What are the effects of this condition?

  13. Which One is Happier?

  14. Right-Left Differences in the Intact Brain • Right Brain: • Random • Intuitive • Holistic • Synthesizing • Subjective (Emotion) • Looks at wholes • Left portion of body • Academic Strengths: • Art & Music • Creativity • Left Brain: • Logical • Sequential • Rational • Analytical • Objective • Looks at parts • Right portion of body • Academic Strengths: • Language (Written/Spoken) • Science & Math

  15. Right-Left Differencesin the Intact Brain • Identify the brain hemisphere that is most associated with each of the following abilities, tasks, and characteristics: • Problem-solving • Artistic Design • Imagination • Construction • Emotion • Practicality • “Masculinity” • “Femininity”

  16. Review • What isplasticityof the brain? • When is the brain typically “most plastic?” • What is a split brain patient? • What are the causes of this condition? • What are the effects of this condition? • Differentiate between the abilities and characteristics of the brain’sleft andright hemispheres.

  17. Homework • Unit 3-B Quiz: “The Brain” • Chapter 4 Outline:“Nature, Nurture, and Human Diversity” • Unit 3 Project: “3-D Brain Model”

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