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Clinical Neruopsych - Chapter 14- Construction and Motor Performance.pdf

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Konstantine Zakzanis

Chapter 14: Construction and Motor Performance Block Design -presented with red and white blocks -use the blocks to construct replicas of a model design presented by the examiner -age has a prominent influence on block design performance -men tend to do better than women at younger ages, however the discrepancy disappears over time -best Wechsler scale measure of visuospatial organization -the right posterior parietal region is implicated in the block design test, lesions to the left parietal don’t seem to have much effect on test performance -patients with frontal lobe damage appear to display ”stickiness” when performing the task. -non-fluid performance -relatively preserved in mild to moderate TBI patients -block design scores of Alzheimer patients are typically among the lowest out of all disorders -low score in the early stages may help to confirm a “clinical” diagnosis -patients with neurodegenerative diseases that typically involve subcortical structures and white matter often do poorly on the Block Design -still perform better than patients with Alzheimer’s Complex Figure Test (CFT) -investigate perceptual organization and visual memory in brain impaired subjects -the copy task is simply, copying the complex figure onto a sheet of paper -research has shown that testing may be valid for the dominant and nondominant hands -colour switching generally affords an adequate and less cumbersome record of the subject’s strategy or lack thereof -record the time it takes to complete the figure -recall of the figure is followed by one or more recall trails -Rey-O/Taylor/MCG is the most commonly used scoring method -fairly stable across ages 20 to 50, afterwards there is a gradual decline in copy proficiency, as well as an accelerated increase in time required to copy the figure -men higher scores than women -left-handedness o
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