Liman Lecture 8 for BISC 421 language and cognition_2009_post

Liman Lecture 8 for BISC 421 language and cognition_2009_post

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(see excellent series from BBC on youtube: Phantoms in the brain, with VS Ramachandran) Higher brain functions
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Three association areas Anterior (prefrontal) – planning motor movement Posterior – links information from several sensory modalities for perception and language Limbic – emotion and memory (more later on this) From Kandel, 4th ed, pg 350 Primary sensory and motor areas Primary sensory and motor Association areas
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Posterior association cortex Posterior – links information from several sensory modalities for perception and language Posterior parietal – attention/perception Temporal – face recognition Primary sensory and motor areas
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Lessons from lesions: Lesions of posterior parietal cortex in soldiers from WWI and WWII (Luria and Holmes) Normal visual acuity, but difficulty in describing a visual scene or reaching for object of interest. Conclude that posterior parietal cortex is involved in perceptual awareness and attention
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unilateral parietal lobe lesions 1941 British neurologist WR Brain described 3 patients with unilateral parietal lobe lesions (lesion on right side):
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Liman Lecture 8 for BISC 421 language and cognition_2009_post

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