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Updated: Jun 8, 2026
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Long-term Sensory Conflict in Freely Behaving Mice
Published on: February 20, 2019
Rapid modulation of sensory processing induced by stimulus conflict
Lawrence G Appelbaum1, David V Smith, Carsten N Boehler
1Duke University, Durham, NC 27708, USA. greg@duke.edu
Journal of Cognitive Neuroscience
|September 21, 2010
Summary
Conflicting environmental stimuli quickly trigger attentional distraction, impacting cognitive control. This study reveals early brain responses to distraction, not immediate cognitive control, precede behavioral interference.
Area of Science:
- Cognitive Neuroscience
- Neuroscience
- Psychology
Background:
- Environmental stimuli often conflict with task goals, potentially hindering behavior.
- Cognitive control theories suggest mechanisms to suppress irrelevant input and enhance relevant input.
- The precise timing of brain processes during conflicting stimulus response is not fully understood.
Purpose of the Study:
- To investigate the temporal cascade of neural processes in response to conflicting stimuli.
- To differentiate between cognitive control and attentional distraction as initial responses.
- To examine the neural underpinnings of behavioral interference in a visual-flanker task.
Main Methods:
- Utilized a novel hemifield-specific visual-flanker task.
- Measured evoked electrical brain responses (EEG).
- Correlated neural activation patterns with behavioral measures (reaction time slowing).
Main Results:
- Task-irrelevant conflicting stimuli were rapidly detected in executive brain regions.
- Simultaneous, rapid modulation of sensory processing in the visual cortex occurred.
- Both neural effects were more pronounced in individuals with greater reaction time slowing due to incongruency.
Conclusions:
- Initial sensory modulation by conflicting stimuli reflects performance-degrading attentional distraction.
- Attentional distraction, not immediate cognitive control, appears to be the initial trigger.
- Findings provide neural evidence for a model of environmental conflict processing starting with distraction.
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