Centre for Policy on Ageing
 

 

Aging and the scope of visual attention
Author(s)Stephen M Kosslyn, Halle D Brown, Itiel E Dror
Journal titleGerontology, vol 45, no 2, March-April 1999
Pagespp 102-109
KeywordsCognitive processes ; Mental speed ; Older people ; Adults ; United States of America.
AnnotationThe aim of this study was to discover whether some cognitive deficits associated with ageing could be related to a restricted scope of visual attention. Twenty-four older and 24 younger individuals participated in the study. Subjects viewed a display that contained four light-grey squares arranged as if on the tips of a plus sign, then black X marks appeared and the subjects indicated whether one or two Xs appeared in the squares as quickly and accurately as possible. Two types of display were used; one with squares spread out over a large area and one with squares condensed into a small area. In two thirds of the trials the size remained the same, and in one third it changed. Results showed that in the trials that had a consistent display size, the older subjects performed the task better with the smaller display, whereas the young subjects performed equally well with both sized displays. In addition, older subjects found it easier to shift from large to small scope than to maintain attention at the large scope; in contrast, the younger subjects found it easiest to maintain attention on a static display size. (AKM).
Accession NumberCPA-990312404 A
ClassmarkDA: DG: B: SD: 7T

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