Related Experiment Video
Updated: May 15, 2026
06:11
A Conflict Model of Reward-seeking Behavior in Male Rats
Published on: February 20, 2019
Reward associations reduce behavioral interference by changing the temporal dynamics of conflict processing
Ruth M Krebs1, Carsten N Boehler, Lawrence G Appelbaum
1Center for Cognitive Neuroscience, Duke University, Durham, North Carolina, United States of America. ruthmkrebs@gmail.com
Plos One
|January 18, 2013
Summary
Reward associations enhance attention and cognitive control, improving performance on challenging tasks. However, irrelevant reward information can initially hinder goal-directed behavior, but this is overcome when processing task-relevant reward cues.
Area of Science:
- Cognitive Neuroscience
- Neuroscience of Reward
Background:
- Reward associations typically enhance attentional and cognitive-control processes.
- These effects are particularly beneficial when cognitive control is challenged, such as overcoming interference.
Purpose of the Study:
- Investigate the neural dynamics of reward effects on cognitive control using a Stroop task.
- Examine how reward prospect influences attention, conflict processing, and behavioral interference.
Main Methods:
- Employed event-related potentials (ERPs) during a color-naming Stroop task.
- Analyzed behavioral performance and ERP modulations in response to reward and no-reward conditions.
Main Results:
- Behavioral facilitation in potential-reward trials correlated with early ERPs indicating heightened attention.
- Reward altered the temporal dynamics of conflict-related ERP components, suggesting earlier processing of stimulus features.
- Task-irrelevant reward words increased interference, but this effect was reduced in potential-reward trials due to prioritized reward information processing.
Conclusions:
- Reward associations modulate conflict processing by altering stimulus processing timing and cognitive control.
- Prioritized processing of task-relevant reward information can mitigate interference from task-irrelevant reward cues.
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