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Unformatted text preview: Neuropsychological Testing: Neuropsychological tests are specifically designed tasks used to measure a psychological function known to be linked to a particular brain structure or pathway Memory&quot; Intelligence&quot; Language&quot; Visuoperception&quot; Executive function&quot; Several advantages to neurospychological assessments:&quot; Clinical diagnosis&quot; Scientific investigation&quot; Provide a basis for caring and counseling for patients&quot; Provide a means of evaluating the effectiveness of treatment andseriousness of its side effects&quot; brain injury is usually not discriminate it can be localized in one region but it doesn't just damage one specific spot Approaches to Neuropsychological Testing (I) Single Test to detect presence of brain damage Discriminate between patients with psychological problems resulting from functional, rather than structural changes to the brain. Unsuccessful: just one test fails to detect the multitude of psychological symptoms that occur in a single brain-damaged patient. (single test can't really capture the extend of the symptom) Standardsised-test battery To detect presence of brain damage; Involved using a set of tests. Halstead-reitman neuropsychological test battery, most widely used E.g. California verbal learning test,Iowa gambling task, lexical decision task, memory assessment scales, and several more. Score in each test are added together to form an aggregate. If the aggregate score falls below the designated cutoff, the patient is diagnosed with brain damage. Unsuccessful: discriminate between neurological patients and healthy patients, but not very good at discriminating between neurological patients and psychiatric patients. Customised-Test Battery Highly successful; used routinely in hospitals for clinical diagnosis and in the laboratory for scientific investigation. The goal: To characterise the nature of the psychological deficits of each brain- damaged patient not just merely identify the brain damage Starts with a handful of selected tests to provide an indication of the general neuropsychological impairmen Ex) can they hear, speak etc On the basis of the common battery, the patient is subjected to a customised series of tests to provide more detail of the specific symptoms. ex) common battery: someone has diff. with memory, on customized test: reveal specific nature of the memory problem Successful : Differs from other tests in that: Measure aspects of psychological function. The interpretation of the test does not rely on how well the patients performs onthe test (like other two methods). The focus is on the cognitive strategy the patient employs (brain damage often changes that strategy without lowering the score)....
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This note was uploaded on 04/13/2011 for the course PSYCH 211 taught by Professor Chudasama during the Winter '11 term at McGill.
- Winter '11