Related Experiment Videos
Mechanisms underlying reduction in Stroop interference with practice for young and old adults
1Department of Psychology, Memphis State University, Tennessee 38152.
Summary
Older adults show less improvement on the Stroop task with practice than younger adults. This suggests age-related difficulties in developing automatic cognitive processes and modifying existing ones.
Area of Science:
- Cognitive Psychology
- Neuroscience
- Human Development
Background:
- Stroop interference, a measure of selective attention and cognitive control, is known to decrease with practice.
- Age-related differences in cognitive processing are well-documented, but the specific impact of practice on Stroop interference across the lifespan requires further investigation.
Purpose of the Study:
- To examine how age-related factors influence the reduction of Stroop interference following extensive practice.
- To compare the mechanisms underlying practice-related improvements in Stroop performance between young and old adults.
Main Methods:
- Three studies were conducted involving young and old adults completing a modified Stroop task with extensive practice.
- Interference reduction was measured to assess changes in cognitive control and automaticity.
Main Results:
- Both young and old adults demonstrated reduced Stroop interference with practice.
- Young adults' improvement was attributed to general task factors and the development of a reading suppression response.
- Old adults' improvement was primarily linked to general task factors, indicating less ability to develop or modify automatic processes.
Conclusions:
- Older adults exhibit greater difficulty in developing new automatic processes and modifying existing ones compared to younger adults.
- Current models of Stroop interference need to incorporate attentional mechanisms to fully explain age-related differences in practice-related improvements.