Visual and cognitive predictors of driving safety in Parkinson's disease patients

Memorial Hospital of RI, Department of Medical Rehabilitation, Pawtucket, RI 02860, USA.
Archives of Clinical Neuropsychology (Impact Factor: 1.99). 12/2007; 22(8):957-67. DOI: 10.1016/j.acn.2007.07.004
Source: PubMed


This study assessed the clinical utility of contrast sensitivity (CS) relative to attention, executive function, and visuospatial abilities for predicting driving safety in participants with Parkinson's disease (PD). Twenty-five, non-demented PD patients completed measures of contrast sensitivity, visuospatial skills, executive functions, and attention. All PD participants also underwent a formal on-road driving evaluation. Of the 25 participants, 11 received a marginal or unsafe rating on the road test. Poorer driving performance was associated with worse performance on measures of CS, visuospatial constructions, set shifting, and attention. While impaired driving was associated with a range of cognitive and visual abilities, only a composite measure of executive functioning and visuospatial abilities, and not CS or attentional skills, predicted driving performance. These findings suggest that neuropsychological tests, which are multifactorial in nature and require visual perception and visual spatial judgments are the most useful screening measures for hazardous driving in PD patients.

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    • "Digit Verbal Test e outras variáveis clínicas (tempo de diagnóstico, sensibilidade ao contraste) classificam corretamente 90% dos condutores com DP. Amick 2007 56 • 25 DP • CR (apto, marginal) FCR − cópia* e TMT − B* classificam corretamente mais de 70% dos condutores (73% sensibilidade, 71% especificidade). "
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    ABSTRACT: Drivers with neurological or psychiatric disease may have cognitive and behavioral deficits likely to reduce the ability to drive a car. Considerable research and publications has shown the utility of instruments and psychological assessment protocols to predict the performance on driving activity.
    Revista Portuguesa de Saude Publica 01/2015; 27. DOI:10.1016/j.rpsp.2014.03.003
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    • "Am J Occup Ther 2011; 65: 579-588. (10) Lang AE, Lozano AM. Parkinson's disease: First of two parts. "
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    • "Visual deficits have been linked to freezing of gait, an extremely debilitating motor symptom [2]. Further , PD-related visual and spatial abilities are predictors of the ability to drive, a visually mediated ADL [13] [14] [15] that is important to independent living. Considering their prevalence and negative functional impact, there is a critical need for further information on these underappreciated nonmotor symptoms. "
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    ABSTRACT: Visual and visuospatial dysfunction is prevalent in Parkinson's disease (PD). To promote assessment of these often overlooked symptoms, we adapted the PD Vision Questionnaire for Internet administration. The questionnaire evaluates visual and visuospatial symptoms, impairments in activities of daily living (ADLs), and motor symptoms. PD participants of mild to moderate motor severity (n = 24) and healthy control participants (HC, n = 23) completed the questionnaire in paper and web-based formats. Reliability was assessed by comparing responses across formats. Construct validity was evaluated by reference to performance on measures of vision, visuospatial cognition, ADLs, and motor symptoms. The web-based format showed excellent reliability with respect to the paper format for both groups (all P's < 0.001; HC completing the visual and visuospatial section only). Demonstrating the construct validity of the web-based questionnaire, self-rated ADL and visual and visuospatial functioning were significantly associated with performance on objective measures of these abilities (all P's < 0.01). The findings indicate that web-based administration may be a reliable and valid method of assessing visual and visuospatial and ADL functioning in PD.
    03/2012; 2012(1):564812. DOI:10.1155/2012/564812
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