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Updated: Jun 21, 2026

A Cognitive Paradigm to Investigate Interference in Working Memory by Distractions and Interruptions
Published on: July 16, 2015
Behavioral and neural correlates of memory selection and interference resolution during a digit working memory task.
Yuji Yi1, Naomi Driesen, Hoi-Chung Leung
1Department of Psychology, Stony Brook University, Stony Brook, New York, USA.
This study reveals how the brain manages working memory. Focusing on relevant information, particularly in the prefrontal-parietal network, helps reduce proactive interference (PI) and improves memory recall.
Area of Science:
- Cognitive Neuroscience
- Neuroimaging
- Psychology
Background:
- Prefrontal and posterior parietal cortexes are crucial for information processing.
- Proactive interference (PI) affects working memory performance.
- Memory selection mechanisms are key to understanding cognitive control.
Purpose of the Study:
- To investigate the relationship between memory selection and proactive interference (PI).
- To identify neural correlates of memory selection and their link to PI.
- To understand how the brain prioritizes task-relevant information in working memory.
Main Methods:
- Behavioral experiments and functional magnetic resonance imaging (fMRI).
- Delayed recognition task with a selection cue.
- Analysis of response times and brain activity during memory tasks.
Main Results:
- PI effects persisted even with extended delay intervals.
- PI was more pronounced with longer precue intervals.
- Lower activity in specific brain regions (left inferior parietal lobe, precuneus, dorsal middle frontal gyrus) correlated with stronger PI.
Conclusions:
- The prefrontal-parietal network plays a vital role in focusing on task-relevant information.
- Enhanced activity in this network may proactively reduce PI in working memory.
- Brain activity patterns predict an individual's ability to manage interference in memory tasks.
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