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Catecholaminergic modulation of the avoidance of cognitive control
Monja I Froböse1, Jennifer C Swart1, Jennifer L Cook1
1Donders Centre for Cognitive Neuroimaging, Donders Institute for Brain, Cognition and Behaviour, Radboud University.
Journal of Experimental Psychology. General
|December 4, 2018
Summary
Methylphenidate impacts the avoidance of cognitive control, particularly in impulsive individuals. This suggests performance benefits may come at the cost of reduced willingness to engage in effortful tasks.
Area of Science:
- Neuroscience
- Cognitive Psychology
- Psychopharmacology
Background:
- Catecholamines are linked to cognitive control and decision-making.
- A recent hypothesis suggests catecholamines modulate decisions about engaging in cognitive control.
Purpose of the Study:
- To investigate if catecholamines influence the avoidance of cognitive control.
- To examine the effects of methylphenidate on task switching avoidance and execution.
Main Methods:
- A catecholamine challenge using methylphenidate was administered to 100 healthy young adults.
- Participants' avoidance and execution of cognitive control (task switching) were assessed.
- Individual differences in trait impulsivity were analyzed.
Main Results:
- Methylphenidate prolonged catecholamine transmission, altering the avoidance of cognitive control but not its execution.
- Higher trait impulsivity correlated with increased avoidance of cognitive control, despite faster task performance.
- Methylphenidate's performance enhancement may be coupled with reduced willingness to exert cognitive control.
Conclusions:
- Findings support the hypothesis that catecholamines modulate the decision to engage in cognitive control.
- Methylphenidate's effects on cognitive control avoidance are moderated by individual impulsivity.
- Integrates research on catecholamines in value-based decision-making and cognitive control.
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