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Updated: Jun 23, 2026
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A Cognitive Paradigm to Investigate Interference in Working Memory by Distractions and Interruptions
Published on: July 16, 2015
Distraction in a visual multi-deviant paradigm: behavioral and event-related potential effects.
Sabine Grimm1, Alexandra Bendixen, Leon Y Deouell
1Institute of Psychology I, University of Leipzig, Germany.
Summary
Visual distraction disrupts task performance, even with predictable oddball stimuli. Regularity processing in vision, similar to audition, impacts attention and behavior.
Area of Science:
- Cognitive Neuroscience
- Visual Perception
- Psychology
Background:
- Visual distraction impacts cognitive task performance.
- The brain processes regular patterns and detects deviations.
- Understanding visual distraction is key to cognitive function.
Purpose of the Study:
- Investigate visual distraction using a multi-deviant oddball paradigm.
- Examine how predictable visual deviations affect task performance and brain activity.
- Explore the role of regularity processing in visual attention.
Main Methods:
- Used a serial, multi-deviant oddball paradigm with visual stimuli.
- Participants performed a digit categorization task with concurrent peripheral distractors.
- Measured behavioral performance (reaction times) and event-related potentials (ERPs).
Main Results:
- Deviant visual stimuli led to prolonged reaction times in the categorization task.
- Negative ERP shifts (N1 and N2 components) were observed for deviant stimuli.
- Performance and ERPs indicated change detection and processing of sequential regularities.
Conclusions:
- Predictable visual deviations elicit change detection and impair task performance.
- Regularity processing is crucial for adaptive behavior in vision, mirroring auditory findings.
- Visual distraction highlights the brain's mechanisms for monitoring and responding to environmental changes.
