unit 3-b (e): right-left differences in the brain mr. mccormick a.p. psychology

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Unit 3-B (E): Unit 3-B (E): Right-Left Right-Left Differences Differences in the Brain in the Brain Mr. McCormick Mr. McCormick A.P. Psychology A.P. Psychology

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Page 1: Unit 3-B (E): Right-Left Differences in the Brain Mr. McCormick A.P. Psychology

Unit 3-B (E):Unit 3-B (E):Right-Left Right-Left DifferencesDifferencesin the Brainin the Brain

Mr. McCormickMr. McCormickA.P. PsychologyA.P. Psychology

Page 2: Unit 3-B (E): Right-Left Differences in the Brain Mr. McCormick A.P. Psychology

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??

Page 3: Unit 3-B (E): Right-Left Differences in the Brain Mr. McCormick A.P. Psychology

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

Page 4: Unit 3-B (E): Right-Left Differences in the Brain Mr. McCormick A.P. Psychology

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)?

Page 5: Unit 3-B (E): Right-Left Differences in the Brain Mr. McCormick A.P. Psychology

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

Page 6: Unit 3-B (E): Right-Left Differences in the Brain Mr. McCormick A.P. Psychology

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??

Page 7: Unit 3-B (E): Right-Left Differences in the Brain Mr. McCormick A.P. Psychology

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

Page 8: Unit 3-B (E): Right-Left Differences in the Brain Mr. McCormick A.P. Psychology

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)

Page 9: Unit 3-B (E): Right-Left Differences in the Brain Mr. McCormick A.P. Psychology

Visual Perception of the Visual Perception of the Split BrainSplit Brain

Page 10: Unit 3-B (E): Right-Left Differences in the Brain Mr. McCormick A.P. Psychology

Testing the Divided Testing the Divided BrainBrain

Page 11: Unit 3-B (E): Right-Left Differences in the Brain Mr. McCormick A.P. Psychology

Testing the Divided Testing the Divided BrainBrain

Page 12: Unit 3-B (E): Right-Left Differences in the Brain Mr. McCormick A.P. Psychology

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?

Page 13: Unit 3-B (E): Right-Left Differences in the Brain Mr. McCormick A.P. Psychology

Which One is Happier?Which One is Happier?

Page 14: Unit 3-B (E): Right-Left Differences in the Brain Mr. McCormick A.P. Psychology

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

Page 15: Unit 3-B (E): Right-Left Differences in the Brain Mr. McCormick A.P. Psychology

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”

Page 16: Unit 3-B (E): Right-Left Differences in the Brain Mr. McCormick A.P. Psychology

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..

Page 17: Unit 3-B (E): Right-Left Differences in the Brain Mr. McCormick A.P. Psychology

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”