Chapter 2 I: Right-Left Differences in the Brain

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Presentation transcript:

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 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

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)?

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

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

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

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)

Visual Perception of the Split Brain

Testing the Divided Brain

Testing the Divided Brain

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

Which One is Happier?

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

Right-Left Differences in 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”

Review What is plasticity of the brain? What is a split brain patient? 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’s left and right hemispheres.

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