Visual-cognitive tools used to determine fitness-to-drive may reflect normal aging

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• 作者：Michel Bé ; dard ; Stephanie Campbell ; Julie Riendeau ; Hillary Maxwell and Bruce Weaver
• 刊名：Clinical and Experimental Optometry
• 出版年：2016
• 出版时间：September 2016
• 年：2016
• 卷：99
• 期：5
• 页码：456-461
• 全文大小：382K
• ISSN：1444-0938

文摘

Scores on many visual-cognitive tools are proposed as indicators of fitness-to-drive. A purported feature of some tools and one believed to be important is that they are ‘age-independent’. Specifically, scores are not correlated with age and poor scores represent a pathological process rather than normal aging. Yet, we know that several cognitive abilities are associated with age. One potential reason for the apparent age-independence of some tools is that focusing on older drivers leads to ‘range restriction’, a statistical issue that reduces the magnitude of correlations when values for one variable are restricted to a smaller range than naturally occurs. Hence, the purpose of this study was to investigate whether age is correlated with scores on visual-cognitive tests when we examine the full age range.