PSYO 1011 Lecture Notes - Lecture 8: Ruth Riley, Brenda Milner, Primary Sensory Areas

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Cerebral cortex: very large in humans, divided into two almost identical halves, halves called right and left hemispheres, divided into different areas or lobes which have different functions. Three functional divisions: primary sensory areas, thalamus, association cortex, primary motor area, brainstem, spinal cord. Occipital lobe: critical for processing visual information. Brain and body connections: connections between primary sensory/motor cortex and body are, contralateral, touch sensations on body"s left -> right parietal lobe. Left primary motor cortex -> right side of body: processing of visual and auditory information. Language ability requires multiple brain areas: broca"s area, left frontal lobe. Important for speech production (motor: wernicke"s area, left temporal lobe. Important for speech comprehension: pathway for language. Left hemisphere damage: broca"s area, left frontal lobe, damage produces deficit in speech production, wernicke"s area, left temporal lobe, damage results in speech comprehension problems. Right hemisphere damage: right occipital/temporal lobes, damage produces prosopagnosia. Inability to recognize faces: also known as face blindness.

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