Driver landmark and traffic sign identification in early Alzheimer's disease.
C 34346 [electronic version only]
Uc, E.Y. Rizzo, M. Anderson, S.W. Shi, Q. & Dawson, J.D.
Journal of Neurology Neurosurgery and Psychiatry, Vol. 76 (2005), No. 6 (June), p. 764-768, 39 ref.
|Samenvatting||The objective of this study was to assess visual search and recognition of roadside targets and safety errors during a landmark and traffic sign identification task in drivers with Alzheimer’s disease. 33 drivers with probable Alzheimer’s disease of mild severity and 137 neurologically normal older adults underwent a battery of visual and cognitive tests and were asked to report detection of specific landmarks and traffic signs along a segment of an experimental drive. The drivers with mild Alzheimer’s disease identified significantly fewer landmarks and traffic signs and made more at-fault safety errors during the task than control subjects. Roadside target identification performance and safety errors were predicted by scores on standardised tests of visual and cognitive function. Drivers with Alzheimer’s disease are impaired in a task of visual search and recognition of roadside targets; the demands of these targets on visual perception, attention, executive functions, and memory probably increase the cognitive load, worsening driving safety. (Author/publisher)|
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