Age differences in the recovery from interruptions

Area of Science:

• Cognitive psychology
• Neuroscience
• Gerontology

Background:

• Interruptions disrupt cognitive tasks, requiring task-set reconfiguration.
• Age-related differences in cognitive control are well-documented.
• Working memory plays a crucial role in maintaining task focus.

Purpose of the Study:

• To investigate age-related deficits in recovery from task interruptions.
• To examine the role of working memory capacity in these deficits.
• To explore age differences in task-set selection and control.

Main Methods:

• Compared young (N=94) and old (N=95) adults performing primary tasks (endogenous/exogenous cues) interrupted by math tasks.
• Measured recovery costs after interruptions.
• Analyzed individual differences in working memory capacity.

Main Results:

• Older adults exhibited significantly increased and prolonged recovery costs post-interruption.
• Age-related deficits were specific to aging, not working memory capacity.
• A paradoxical cost asymmetry (interruption costs) was more pronounced in older adults.

Conclusions:

• Aging impairs the ability to re-establish task focus after interruptions.
• Working memory capacity does not fully explain age-related interruption deficits.
• Findings offer insights into age differences in cognitive control and task management.