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Related Experiment Video

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Highlighting and Reducing the Impact of Negative Aging Stereotypes During Older Adults' Cognitive Testing

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Published on: January 24, 2020

Stroop interference and negative priming (NP) suppression in normal aging.

J Mayas¹, L J Fuentes, S Ballesteros

¹Grupo de Investigación en Envejecimiento y Enfermedades Neurodegenerativas, Departamento de Psicología Básica II, Universidad Nacional de Educación a Distancia, Juan del Rosal 10, 28040 Madrid, Spain. jmayas@psi.uned.es

Archives of Gerontology and Geriatrics

|January 11, 2011

Summary

This summary is machine-generated.

Older adults experience greater Stroop interference and show impaired inhibitory control compared to younger adults. This suggests aging impacts the ability to suppress automatic responses, beyond just slowing down processing.

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Area of Science:

Cognitive Psychology
Neuroscience of Aging
Human Development

Background:

Aging is associated with cognitive changes, including potential declines in inhibitory control.
The Stroop task is a well-established measure of selective attention and cognitive inhibition.
Previous research suggests age-related differences in cognitive processing, but the specific mechanisms are debated.

Purpose of the Study:

To investigate age-related differences in Stroop interference.
To determine if reduced efficiency of inhibitory mechanisms contributes to age-related cognitive differences.
To examine the ability to suppress pre-potent responses in younger and older adults.

Main Methods:

A color-word Stroop task was administered to 18 younger (mean age 30.0±3.9 years) and 18 older (mean age 75±7.2 years) healthy adults.
Stroop interference and No-Go (NP) suppression were assessed concurrently.
Performance metrics were analyzed to compare performance between age groups.

Main Results:

Older adults exhibited significantly greater Stroop interference than younger adults.
The No-Go (NP) effect, indicative of response suppression, was reliable only in the younger group.
Older adults did not demonstrate significant No-Go (NP) suppression, indicating a deficit in inhibitory control.

Conclusions:

Age-related differences in Stroop interference are not solely explained by processing speed (slowing hypothesis).
The findings point to a breakdown in inhibitory mechanisms during aging.
Impaired ability to suppress pre-potent responses is a key factor in age-related cognitive differences.