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Unit 3-B (E):Unit 3-B (E):Right-Left Right-Left DifferencesDifferencesin the Brainin the Brain
Mr. McCormickMr. McCormickA.P. PsychologyA.P. Psychology
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Do-NowDo-Now(Discussion)(Discussion)
What is it mean to be a What is it mean to be a “right-brain” “right-brain” vs. vs. “left-“left-brain” brain” dominantdominant person? person?
What does this What does this suggest suggest about about the the workingsworkings of the of the brainbrain??
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The Brain’s PlasticityThe Brain’s Plasticity
Plasticity:Plasticity: The brain’s ability to change, especially The brain’s ability to change, especially
during childhood, by reorganizing after during childhood, by reorganizing after damage or by building new pathways damage or by building new pathways based on experiencebased on experience
NeurogenesisNeurogenesis:: The formation of new neuronsThe formation of new neurons
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The Brain’s PlasticityThe Brain’s Plasticity
When is the brain When is the brain “most “most plastic?”plastic?”
What are some ways that the What are some ways that the brain’s brain’s plasticityplasticity can can benefitbenefit people with limited senses people with limited senses (e.g. blind or deaf people)?(e.g. blind or deaf people)?
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The Divided BrainThe Divided Brain
Lateralization:Lateralization: The brain’s left and right hemispheres The brain’s left and right hemispheres
serve different physiological and serve different physiological and cognitive functionscognitive functions
Most apparent after brain damageMost apparent after brain damage Left hemisphere: Left hemisphere: dominant/majordominant/major Right hemisphere: Right hemisphere: subordinate/minorsubordinate/minor
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The Divided BrainThe Divided Brain
Why do you think a Why do you think a higher higher
percentage percentage (90%) (90%) of people are of people are
right-handedright-handed??
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The Divided BrainThe Divided Brain
Corpus Callosum:Corpus Callosum: The large band of neural fibers The large band of neural fibers
connecting the two brain hemispheres connecting the two brain hemispheres and carrying messages between themand carrying messages between them
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The Divided BrainThe Divided Brain
Split Brain:Split Brain: A condition resulting from surgery that A condition resulting from surgery that
isolates the brain’s two hemispheres by isolates the brain’s two hemispheres by cutting the fibers (mainly those of the cutting the fibers (mainly those of the corpus callosum)corpus callosum)
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Visual Perception of the Visual Perception of the Split BrainSplit Brain
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Testing the Divided Testing the Divided BrainBrain
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Testing the Divided Testing the Divided BrainBrain
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The Divided BrainThe Divided Brain
What is What is Split BrainSplit Brain??What are theWhat are the causes causes of of this condition?this condition?
What are the What are the effectseffects of of this condition?this condition?
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Which One is Happier?Which One is Happier?
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Right-Left Differences Right-Left Differences in the Intact Brainin the Intact Brain
Left Brain:Left Brain: LogicalLogical SequentialSequential RationalRational AnalyticalAnalytical ObjectiveObjective Looks at partsLooks at parts Right portion of bodyRight portion of body Academic Strengths:Academic Strengths:
Language Language (Written/Spoken)(Written/Spoken)
Science & MathScience & Math
Right Brain:Right Brain: RandomRandom IntuitiveIntuitive HolisticHolistic SynthesizingSynthesizing Subjective Subjective
(Emotion)(Emotion) Looks at wholesLooks at wholes Left portion of bodyLeft portion of body Academic Academic
Strengths:Strengths: Art & MusicArt & Music CreativityCreativity
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Right-Left DifferencesRight-Left Differencesin the Intact Brainin the Intact Brain
IdentifyIdentify the the brain hemisphere brain hemisphere that is most associated with each that is most associated with each of the following of the following abilitiesabilities, , taskstasks, and , and characteristicscharacteristics:: Problem-solvingProblem-solving
Artistic DesignArtistic Design
ImaginationImagination
ConstructionConstruction
EmotionEmotion
PracticalityPracticality
““Masculinity”Masculinity”
““Femininity”Femininity”
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ReviewReview What isWhat is plasticityplasticity of the of the brainbrain??
WhenWhen is the brain typically is the brain typically “most plastic?”“most plastic?”
What is a What is a split brain split brain patient?patient? What are the What are the causescauses of this condition? of this condition? What are the What are the effectseffects of this condition? of this condition?
Differentiate Differentiate between the between the abilitiesabilities and and characteristics characteristics of the brain’sof the brain’s leftleft and and right hemispheresright hemispheres..
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HomeworkHomework
Unit 3-B Quiz: Unit 3-B Quiz: “The Brain”“The Brain”
Chapter 4 Outline:Chapter 4 Outline: “Nature, “Nature, Nurture, and Human Diversity”Nurture, and Human Diversity”
Unit 3 Project: Unit 3 Project: “3-D Brain Model”“3-D Brain Model”