Citation

Dommès A, Wu YH, Aquino JP, Pitti-Ferrandi H, Soleille M, Martineau-Fleury S, Samson M, Rigaud AS. Alzheimer Dis. Assoc. Disord. 2014; 29(4): 294-300.

Affiliation

*IFSTTAR, LEPSIS §Clinique Médicale de la Porte Verte ∥Centre Hospitalier de Versailles, site Richaud, Versailles †Hôpital Broca, GH Paris Centre, AP-HP ‡EA 44 68, Université Paris Descartes, Paris, France.

Copyright

(Copyright © 2014, Lippincott Williams and Wilkins)

DOI

10.1097/WAD.0000000000000074

PMID

25494367

Abstract

The overrepresentation of very old people (75 or older) in pedestrian crash statistics raises the issue of the effects of normal and pathologic ageing on gap-selection difficulties during street crossing. The present study focused on Alzheimer disease, a condition commonly associated with cognitive declines detrimental to daily life activities such as crossing the street. Twenty-five participants with mild dementia and 33 controls carried out a street-crossing task in a simulated environment. They also took a battery of cognitive tests. The mild-dementia group was more likely than the control group to make decisions that led to collisions with approaching cars, especially when the traffic was coming from 2 directions and they were in the far lane. Regression analyses demonstrated that the increased likelihood of collisions in the dementia group was associated with impairments in processing-speed and visual-attention abilities assessed on the Useful Field of View test. This test has already proven useful for predicting driving outcomes, falls, and street-crossing difficulties in healthy old adults, and among drivers with Alzheimer disease. Clinicians are encouraged to use it to help estimate whether a patient can drive, walk, and cross a street safely.

Language: en