Detecting age-related cognitive decline using a visual gist task

Mudit Vashist, Mark Bahr

Research output: Contribution to conferencePaperResearchpeer-review

Abstract

Introduction: Individuals age differently. Changes in cognition with increasing age is accepted as a normal part of aging. However, some show more marked but gradual cognitive decline over their lifespan, particularly in memory. This atypical decline in cognitive functioning in the aging population is often referred as mild cognitive impairment. It is thought to be associated with later more serious impairment. Current instruments to detect cognitive decline are insensitive. This study investigated the potential of a visual gist task that measured stimulus recognition and the response latency to recognise stimuli to detect age related changes in cognition. The study used three age groups to examine whether the onset of age-related cognitive decline occurred earlier than the recognised age from previous studies.

Methods: Sixty-six participants aged 20 to 78 years were opportunistically sampled from South-Eastern Queensland to complete computerised tasks assessing visual gist recognition and digit span forward task.

Results: Accuracy of overall Gist memory did not significantly decline with age. However, exploratory correlational analysis indicated a significant increase in semantically related errors with increasing age. Planned comparisons indicated a significant increase in latency for target recognition in older adults than younger adults.

Conclusions: The findings are consistent with the theory of generalised slowing of information processing. Latency of response appears a more sensitive indicator of cognitive decline than accuracy measures. Visual gist task sensitivity may be improved with further instrument refinement to improve the utility of the measure and provide a better diagnostic tool to detect age-related decline.

Conference

Conference2017 Joint APS-CHP/ASBHM Conference: The Australasian Society for Behavioural Health and Medicine (ASBHM) and APS College of Health Psychologists
Abbreviated titleAPS-CHP/ASBHM
CountryAustralia
CityGold Coast
Period13/07/1715/07/17
Internet address

Fingerprint

Cognition
Reaction Time
Queensland
Automatic Data Processing
Age of Onset
Cognitive Dysfunction
Young Adult
Age Groups
Population
Recognition (Psychology)

Cite this

Vashist, M., & Bahr, M. (2017). Detecting age-related cognitive decline using a visual gist task. Paper presented at 2017 Joint APS-CHP/ASBHM Conference: The Australasian Society for Behavioural Health and Medicine (ASBHM) and APS College of Health Psychologists, Gold Coast, Australia.
Vashist, Mudit ; Bahr, Mark. / Detecting age-related cognitive decline using a visual gist task. Paper presented at 2017 Joint APS-CHP/ASBHM Conference: The Australasian Society for Behavioural Health and Medicine (ASBHM) and APS College of Health Psychologists, Gold Coast, Australia.
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Vashist, M & Bahr, M 2017, 'Detecting age-related cognitive decline using a visual gist task' Paper presented at 2017 Joint APS-CHP/ASBHM Conference: The Australasian Society for Behavioural Health and Medicine (ASBHM) and APS College of Health Psychologists, Gold Coast, Australia, 13/07/17 - 15/07/17, .

Detecting age-related cognitive decline using a visual gist task. / Vashist, Mudit ; Bahr, Mark.

2017. Paper presented at 2017 Joint APS-CHP/ASBHM Conference: The Australasian Society for Behavioural Health and Medicine (ASBHM) and APS College of Health Psychologists, Gold Coast, Australia.

Research output: Contribution to conferencePaperResearchpeer-review

TY - CONF

T1 - Detecting age-related cognitive decline using a visual gist task

AU - Vashist, Mudit

AU - Bahr, Mark

PY - 2017

Y1 - 2017

N2 - Introduction: Individuals age differently. Changes in cognition with increasing age is accepted as a normal part of aging. However, some show more marked but gradual cognitive decline over their lifespan, particularly in memory. This atypical decline in cognitive functioning in the aging population is often referred as mild cognitive impairment. It is thought to be associated with later more serious impairment. Current instruments to detect cognitive decline are insensitive. This study investigated the potential of a visual gist task that measured stimulus recognition and the response latency to recognise stimuli to detect age related changes in cognition. The study used three age groups to examine whether the onset of age-related cognitive decline occurred earlier than the recognised age from previous studies.Methods: Sixty-six participants aged 20 to 78 years were opportunistically sampled from South-Eastern Queensland to complete computerised tasks assessing visual gist recognition and digit span forward task.Results: Accuracy of overall Gist memory did not significantly decline with age. However, exploratory correlational analysis indicated a significant increase in semantically related errors with increasing age. Planned comparisons indicated a significant increase in latency for target recognition in older adults than younger adults.Conclusions: The findings are consistent with the theory of generalised slowing of information processing. Latency of response appears a more sensitive indicator of cognitive decline than accuracy measures. Visual gist task sensitivity may be improved with further instrument refinement to improve the utility of the measure and provide a better diagnostic tool to detect age-related decline.

AB - Introduction: Individuals age differently. Changes in cognition with increasing age is accepted as a normal part of aging. However, some show more marked but gradual cognitive decline over their lifespan, particularly in memory. This atypical decline in cognitive functioning in the aging population is often referred as mild cognitive impairment. It is thought to be associated with later more serious impairment. Current instruments to detect cognitive decline are insensitive. This study investigated the potential of a visual gist task that measured stimulus recognition and the response latency to recognise stimuli to detect age related changes in cognition. The study used three age groups to examine whether the onset of age-related cognitive decline occurred earlier than the recognised age from previous studies.Methods: Sixty-six participants aged 20 to 78 years were opportunistically sampled from South-Eastern Queensland to complete computerised tasks assessing visual gist recognition and digit span forward task.Results: Accuracy of overall Gist memory did not significantly decline with age. However, exploratory correlational analysis indicated a significant increase in semantically related errors with increasing age. Planned comparisons indicated a significant increase in latency for target recognition in older adults than younger adults.Conclusions: The findings are consistent with the theory of generalised slowing of information processing. Latency of response appears a more sensitive indicator of cognitive decline than accuracy measures. Visual gist task sensitivity may be improved with further instrument refinement to improve the utility of the measure and provide a better diagnostic tool to detect age-related decline.

M3 - Paper

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Vashist M, Bahr M. Detecting age-related cognitive decline using a visual gist task. 2017. Paper presented at 2017 Joint APS-CHP/ASBHM Conference: The Australasian Society for Behavioural Health and Medicine (ASBHM) and APS College of Health Psychologists, Gold Coast, Australia.