Grad Cola Lecture

Grad Cola Lecture - Graduate Neuroscience 2 Dec 2011...

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Graduate Neuroscience 2 Dec 2011 Anatomical Basis of Cognitive Function The Brain "Blob" I. History A. understanding of the brain emerged kind of late in history B. much curiosity in classical times 1. thought that brain size determined a person's intellectual ability 2. Galen thought that the ventricles of an individual was where a person's mental capacity' early 1800s C. Gall and Spurzheim 1. mental faculties were based on external features of the skull 2. led to the theory of Phrenology a. different regions of the brain perform different functions and are associated with different behaviors. b. do not have the Society of Phrenology anymore (aka the theory is not valid) c. thought that the sizes of regions indicated more or less of a function or ability D. Ontogeny 1. deals with how the brain develops and develops in different species II. What is cognitive function? A. A variety of higher mental process including perceiving, thinking, imagining, speaking, acting, planning, and remembering B. Cognitive function is localized within the cerebral cortex 1. cerebral cortex is a furrowed grey matter covering the cerebral hemispheres divided into four lobes a. frontal lobe: planning future action and control of movement b. parietal lobe: somatic sensation c. occipital lobe: vision d. temporal lobe: hearing, learning, memory and emotion 2. organization by 2 main features a. contralateral sensory and motor function b. hemispheres asymmetrical in structure and function. i) different brian regions look different across individuals and between hemispheres in individuals. ii) even more asymmetry in left-handed individuals. III. Localizationists
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A. Broca and Wernicke were two neurologists who were presented patients with specific disorders. Because they figured out the locations of those patients problems, the regions were named after them 1. Broca's area: articulation, speech, motor area of speech, speech production, language output
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This note was uploaded on 12/21/2011 for the course ZOL 320 taught by Professor Kopachik during the Fall '11 term at UCSB.

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Grad Cola Lecture - Graduate Neuroscience 2 Dec 2011...

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