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Adult age differences in shifting focused attention
D J Madden1, S L Connelly, T W Pierce
1Center for the Study of Aging and Human Development, Duke University Medical Center, Durham, North Carolina 27710.
Psychology and Aging
|December 1, 1994
Summary
Attention shifting in older adults is efficient unless distractors are present. Age-related changes in focused attention are minimal, especially in simple visual search tasks without distracting elements.
Area of Science:
- Cognitive Psychology
- Neuroscience
- Human Factors
Background:
- Attention shifting is crucial for effective visual processing.
- Understanding age-related differences in attention is vital for various applications.
- Previous research suggests potential declines in attentional control with age.
Purpose of the Study:
- To investigate age-related differences in the time required to shift focused attention.
- To examine the impact of cue validity and distractors on attention shifting.
- To determine if older adults experience greater difficulty with attention shifting in complex visual environments.
Main Methods:
- Participants performed a choice response task with visual target letters at different locations.
- Two experiments manipulated cue validity (40% vs. 70%) and the presence of distractors.
- Reaction times and accuracy were measured to estimate attention shift times.
Main Results:
- At 40% cue validity with no distractors, attention shift time was near zero for both young and older adults.
- At 70% cue validity, attention shift time increased significantly with age and the presence of distractors.
- Older adults showed a greater increase in attention shift time when distractors were present.
Conclusions:
- Age-related declines in shifting focused attention are minimal in simple tasks.
- Attentional control in older adults is compromised by the need to process nontarget information (distractors).
- These findings highlight the importance of environmental complexity in understanding age differences in attention.