Impaired visual search in drivers with Parkinson's disease
Impaired visual search in drivers with Parkinson's disease
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DOI：
10.1002/ana.20958
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发表时间：
2006-10-01
影响因子：
11.2
通讯作者：
Dawson, Jeffrey D.
中科院分区：
文献类型：
--
作者：
Uc, Ergun Y.;Rizzo, Matthew;Dawson, Jeffrey D.
目的：为了评估视觉搜索和识别路边目标和安全错误的能力，在一个地标和交通标志识别任务的驾驶员与帕金森病（PD）。方法：79名驾驶员与PD和151神经正常的老年人进行了电池的视觉，认知和运动测试。驾驶员被要求报告目击特定的地标和交通标志沿着一个四车道的商业地带在一个实验驱动器在一个instrumented vehicle.Results：与PD的司机确定显着减少地标和交通标志，他们犯了更多的错误的安全错误，在任务比对照组，即使调整后的基线错误。在PD组中，地标和交通标志识别率的最重要预测因素是有用视野（视觉处理速度和注意力）和复杂图形测试复制（视觉空间能力）。连线测试（B-A），一个独立的运动功能的认知灵活性的措施，是唯一的独立预测故障安全错误的驾驶员与PD.Interpretation：与PD相关的认知和视觉缺陷导致受损的视觉搜索，而驾驶，在此任务期间增加认知负荷恶化了他们的驾驶安全。
Objective: To assess the ability for visual search and recognition of roadside targets and safety errors during a landmark and traffic sign identification task in drivers with Parkinson's disease (PD).Methods: Seventy-nine drivers with PD and 151neurologically normal older adults underwent a battery of visual, cognitive, and motor tests. The drivers were asked to report sightings of specific landmarks and traffic signs along a four-lane commercial strip during an experimental drive in an instrumented vehicle.Results: The drivers with PD identified significantly fewer landmarks and traffic signs, and they committed more at-fault safety errors during the task than control subjects, even after adjusting for baseline errors. Within the PD group, the most important predictors of landmark and traffic sign identification rate were performances on Useful Field of View (visual speed of processing and attention) and Complex Figure Test-Copy (visuospatial abilities). Trail Making Test (B-A), a measure of cognitive flexibility independent of motor function, was the only independent predictor of at-fault safety errors in drivers with PD.Interpretation: The cognitive and visual deficits associated with PD resulted in impaired visual search while driving, and the increased cognitive load during this task worsened their driving safety.