F11 Lecture 7 - 310 - General brain damage

F11 Lecture 7 - 310 - General brain damage - General brain...

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General brain damage 7 – September 26, 2011
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Neuropsychological Research Methods Main categories of research methods : 1. Examine the effects of brain damage on behavior 2. Record brain activity during behavior 3. Examine the effects of stimulating particular parts of the brain
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Brain Injury Main types 1. Traumatic brain injuries (TBI) Penetrating/open head injuries Closed head injuries 1. Tumors 2. Cerebrovascular accidents/disorders 3. Infections Less common 5. Neurotoxins 6. Genetic factors
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Inflammation NORMAL response to harmful stimuli Pain Vasodilation (redness) Tissue swelling Fluid build-up (edema) Cell infiltration Cells of the immune system Immune cells produce chemical messengers that recruit more cells change local conditions (eg., further vasodilation)
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Head Injuries
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Head Injuries Open/Penetrating vs Closed Open – penetration of head and brain by an object Lethal brain damage Subsequent to closed head injury Bullet wound Pathology and Mechanisms of TBI, Jeffrey T. Barth & Frank G. Hillary © 1998-2000 National Academy of Neuropsychology Object penetration
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Closed-Head Injuries Contra Coup Effect
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F11 Lecture 7 - 310 - General brain damage - General brain...

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