Onset Time of Inhibition of Return Is a Promising Index for Assessing Cognitive Functions in Older Adults

Tingni Li, Lei Wang, Wanyi Huang, Yanfen Zhen, Chupeng Zhong, Zhe Qu, Yulong Ding and Nicole Anderson

The Journals of Gerontology: Series B, 2020, vol. 75, issue 4, 753-761

Abstract: ObjectivesDeveloping efficient tools for assessing general cognitive functions in older adults is essential. Previous studies found that inhibition of return (IOR) occurred later in the older adults than in the younger. However, little is known about the relationship between the onset time of IOR (IOR-OT) and cognitive functions in the aging population. The present study examined this issue and investigated the potential of using IOR-OT as an index of cognitive functioning in older adults.MethodsIn two studies, the IOR-OT of healthy younger and older adults was measured by a modified Posner peripheral cueing task, and cognitive functions of the older adults were evaluated with the Addenbrooke’s Cognitive Examination Revised (ACE-R).ResultsBoth studies showed a significant correlation (r = ~.5) between IOR-OT and cognitive functions as assessed by ACE-R in older individuals: later IOR-OT was accompanied by a lower ACE-R score.DiscussionTo our knowledge, the present studies are the first to discover a relatively strong correlation between IOR-OT and cognitive functions in older adults. These findings provide new evidence supporting the inhibition deficit theory of aging and lay the foundation of using IOR-OT as an objective measure of cognitive functions in the aging population.

Keywords: ACE-R; Cognitive aging; Inhibition ability; Visual attention (search for similar items in EconPapers)
Date: 2020
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