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- W2918243731 abstract "Purpose: Older adults experience impaired driving performance, and modify their driving habits, including limiting amount and spatial extent of travel. Alzheimer disease (AD)-related pathology, as well as spatial navigation difficulties, may influence driving performance and driving behaviors in clinically normal older adults. We examined whether AD biomarkers [cerebrospinal fluid (CSF) concentrations of Aβ 42 , tau, and ptau 181 ] were associated with lower self-reported spatial navigation abilities, and whether navigation abilities mediated the relationship of AD biomarkers with driving performance and extent. Methods: Clinically normal older adults (n=112; aged 65+) completed an on-road driving test, the Santa Barbara Sense of Direction scale (self-report measure of spatial navigation ability), and the Driving Habits Questionnaire for an estimate of driving extent (composite of driving exposure and driving space). All participants had a lumbar puncture to obtain CSF. Results: CSF Aβ 42 , but not tau or ptau 181 , was associated with self-reported navigation ability. Lower self-reported navigation was associated with reduced driving extent, but not driving errors. Self-reported navigation mediated the relationship between CSF Aβ 42 and driving extent. Conclusions: Findings suggest that cerebral amyloid deposition is associated with lower perceived ability to navigate the environment, which may lead older adults with AD pathology to limit their driving extent." @default.
- W2918243731 created "2019-03-11" @default.
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- W2918243731 date "2018-04-01" @default.
- W2918243731 modified "2023-09-29" @default.
- W2918243731 title "Alzheimer Disease Biomarkers and Driving in Clinically Normal Older Adults" @default.
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- W2918243731 doi "https://doi.org/10.1097/wad.0000000000000257" @default.
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