An Experimental and Computational Analysis of Age Differences in the Recognition of Fragmented Pictures: Inhibitory Connections versus Speed of Processing

Young and older adults were tested for the ability to identify degraded pictures presented either in a series of incremental steps with each step increasing the completeness of the visual information (ascending condition) or in one single exposure ( fixed condition ). Significant interference effect...

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Bibliographic Details
Published in:Experimental aging research 1999-07, Vol.25 (3), p.223-242
Main Author: Wingfield, Kimberly C. Lindfield, Arthur
Format: Article
Language:English
Subjects:
Adolescent
Adult
Aged
Aged, 80 and over
Aging - psychology
Cognition
Computer Simulation
Female
Humans
Male
Middle Aged
Models, Psychological
Pattern Recognition, Visual
Psychological Tests
Time Factors
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Summary:Young and older adults were tested for the ability to identify degraded pictures presented either in a series of incremental steps with each step increasing the completeness of the visual information (ascending condition) or in one single exposure ( fixed condition ). Significant interference effects , indicated by a superiority of fixed over ascending presentations , appeared at a lower level of performance for the older adults than for the young adults . This finding was consistent with the notion of an inhibition deficit operating in normal aging . A computer simulation , based on simple connectionist architecture , demonstrated that an age related inhibition deficit in the identification of fragmented pictures can be produced by slowed processing rates .
ISSN:0361-073X
1096-4657
DOI:10.1080/036107399244002