Clock Drawing: A Neuropsychological Analysis
Oxford University Press, Feb 24, 1994 - Psychology - 192 pages
Written by a multidisciplinary team of experts in neurobehavior, this concise, well-illustrated book provides normative data on clock drawing from ages 20 to 90 years. A practical guide to the quantitative assessment of clock drawing, it also takes a process-oriented approach to qualitative impairment. The authors discuss clock drawing as a neuropsychological test instrument and the rationale for selecting specific time settings, as well as the basis for using different clock conditions. The book contains numerous examples of clocks drawn by patients with cognitive impairment due to dementia, metabolic encephalopathy, traumatic brain injury, disconnection syndrome and focal brain lesions. Insight into changes in clock drawing ability that may represent the earliest markers of cognitive decline in dementia are also presented. This volume will be of interest to clinicians and researchers in neuropsychology, neurology, psychiatry, geriatric medicine, language therapy, and occupational therapy.
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age groups agraphia Alzheimer’s disease apraxia assessment assigned a positive axis in millimeters Baycrest Terrace subjects clinical clock contour clock drawing clock face clock-drawing task cognitive impairment correct proportion critical items deficits disease with dementia disorders draw a clock drawing numbers drawn by patients drawn or inferred drew DRS scores dysfunction elderly errors examiner clock condition extrapolated free-drawn clock free-drawn condition frontal lobe hands present horizontal axis hour hand Hour target number Huntington's disease I I I I inferred/extrapolated center Kaplan lesions LoDRS measurement is assigned minute hand Minute target number multi-infarct dementia Neurology neuropsychological neuropsychological tests normal controls normative study numbers written omit items parietal lobe Parkinson's disease patients with Alzheimer’s percent pre-drawn recoding response to item right hemisphere Roman numerals scoring system self-modification sensitive set the hands spatial spatial disorientation stimulus-bound subgroup superfluous markings Table target number indicated temporal lobe total clock scores visuospatial WAIS-R
Page vii - ... occluding the circulation to the hand, a precaution necessary to prevent contamination of venous samples with arterial blood coursing through the arteriovenous (AV) shunts of the finger pulps and palm. To obtain estimates of tissue exchange of glucose or other substances, the "This investigation was supported in part by research grants from the Medical Research Council, the British Insulin Manufacturers, the Wellcome Foundation, and the Governors of Guy's Hospital.