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Lecture 9

PSYA01H3 Lecture Notes - Lecture 9: Cerebral Cortex, Temporal Lobe, Parietal Lobe


Department
Psychology
Course Code
PSYA01H3
Professor
Steve Joordens
Lecture
9

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Cortex vs Midbrain
Cerebral cortex is the place where high level perception of the world occurs, place
where controlled motor activities originate
Place where all of our controlled interactions with the external world occur
Everything not wrinkly is the midbrain section
Animals have cortex and is less than what humans have, frontal Areas of the brain is
where humans are distinct
Where humans are distinct
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Cortical is where high level vision happens (perception of sound etc)
Cerebellum is not cortex frontal, occipital parietal and temporal is the cortex
Primary cortex: direct sensory and connections
Grabs visual stimulus
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Association: interpretation vs memory
Interprets what its seen
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Relies on past memories , context it makes sense due to past scenarios
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Contralateral Organization
Left side of the brain relates to the right side of the body
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Right side of the brain controls left, vice versa
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Don’t know why
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Laterization of Function
Refers to the notion that the brain is composed of separate hemispheres
creating left and right sides of all cortical tissues and sometimes the left and
right have different priorities
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We are one brain, not specifically right and left
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Occipital Lobe
Perception of vision
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Also lower part of temporal
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If primary cortex is damaged: Directed to sight and damage creates a hole in a
persons visual field called a scotoma
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If association cortex is damaged: they can describe stuff but they can't identify
something, they can see but they cant recognize
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Agnosia : lack of knowledge (trouble recognizing what its called)
§
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Lecture 9
Wednesday, May 29, 2019
1:48 PM
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