Does a yellow filter improve visual object categorization in normal aging?

Previous studies have shown that a yellow filter (CPF450) can increase contrast, motion sensitivity, vergence, and accommodation. We investigated whether a yellow filter can reduce age-related visual deficits. We tested two groups of 60 observers (mean age 24 vs. 72) in an object categorization task...

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Bibliographic Details
Published in:Aging, Neuropsychology, and Cognition Neuropsychology, and Cognition, 2014-05, Vol.21 (3), p.325-345
Main Authors: Lenoble, Quentin, Boucart, Muriel, Rougier, Marie-Bénédicte, Bordaberry, Pierre, Delord, Sandrine
Format: Article
Language:English
Subjects:
Adolescent
Adult
Aged
Aged, 80 and over
Aging - psychology
Categorization
Contrast
Contrast Sensitivity
Eccentricity
Female
Filtration
Humans
Male
Middle Aged
Normal aging
Pattern Recognition, Visual
Semantics
Yellow filter
Young Adult
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Summary:Previous studies have shown that a yellow filter (CPF450) can increase contrast, motion sensitivity, vergence, and accommodation. We investigated whether a yellow filter can reduce age-related visual deficits. We tested two groups of 60 observers (mean age 24 vs. 72) in an object categorization task. Grayscale photographs of natural objects and artifacts were displayed either centrally or peripherally (21°) at low (8%) or medium (30%) contrast. There were three filter conditions (no filter, placebo filter, and yellow filter). Both groups of observers performed similarly on central and medium-contrast pictures. The deleterious effects of reduced contrast and eccentricity were stronger in elderly individuals. Moreover, the yellow filter globally improved the speed of categorization for the elderly participants. The decrease in response time in the yellow filter condition was larger when the stimuli were displayed peripherally in both groups. A yellow filter should be considered as a potential means for visual improvement in normal aging.
ISSN:1382-5585
1744-4128
DOI:10.1080/13825585.2013.823143