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Stimulus parameters that produce age differences in block design performance.

Authors
Type
Published Article
Journal
Journal of clinical psychology
Publication Date
Volume
40
Issue
6
Pages
1474–1485
Identifiers
PMID: 6511968
Source
Medline

Abstract

Administered block designs that varied according to two parameters, Task Uncertainty and Perceptual Cohensiveness, to 83 persons 49 years of age or older. Performance was adjusted to remove motor speed differences. Performance changed significantly over the age span as a function of Task Uncertainty. From 49 years up, performance did not change as a function of Perceptual Cohesiveness. An analysis that included a group of 20 persons 30 years of age or younger yielded an interaction of Age and Perceptual Cohesiveness. From 49 years on, analytic or image segmentation processes do not seem to change, but other information processing becomes slower.

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