title: Detection of imminent collisions by drivers with Alzheimer's disease and Parkinson's disease: a preliminary study.
abstract: The aim of this study was to assess whether patients with neurodegenerative disease, namely Alzheimer's disease (AD) and Parkinson's disease (PD), differed from age-matched, neurologically normal comparison participants in their ability to detect impending collisions. Six AD patients and 8 PD patients, together comprising the neurodegenerative disease group, and 18 comparison participants completed a collision detection simulation task where they must judge whether approaching objects would collide with them or pass by them. The neurodegenerative disease group was less sensitive in detecting collisions than the comparison group, and sensitivity worsened with increasing number of objects in the display and increasing time to contact of those objects. Poor performance on tests of cognition and visual attention were associated with poor collision detection sensitivity. The results of this study indicate that neurodegenerative disease impairs the ability to accurately detect impending collisions and that these decrements are likely the combined result of visual and cognitive disturbances related to disease status.
authors.affiliation: Dept. of Neurology, University of Iowa Hospitals and Clinics, Iowa City, IA 52242, USA. lindsay-vaux@uiowa.edu
authors.forename: Lindsay M
authors.initials: LM
authors.lastname: Vaux
authors.forename: Rui
authors.initials: R
authors.lastname: Ni
authors.forename: Matthew
authors.initials: M
authors.lastname: Rizzo
authors.forename: Ergun Y
authors.initials: EY
authors.lastname: Uc
authors.forename: George J
authors.initials: GJ
authors.lastname: Andersen
mesh_terms: D000063:Accidents, Traffic; D000368:Aged; D000544:Alzheimer Disease; D001288:Attention; D001334:Automobile Driving; D016022:Case-Control Studies; D003071:Cognition; D003198:Computer Simulation; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009483:Neuropsychological Tests; D010300:Parkinson Disease; D010865:Pilot Projects; D011930:Reaction Time; D012649:Self Concept; D011795:Surveys and Questionnaires; D014787:Vision Tests
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