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Cognitive control, motivation and fatigue: A cognitive neuroscience perspective
1Emeritus Professor Physiological Psychology, Brain and Cognition Group, Psychology Department, University of Amsterdam, the Netherlands.
Brain and Cognition
|May 26, 2022
Summary
Cognitive control, motivation, and dopamine pathways interact to influence fatigue. A new cost-benefit model explains how fatigue alters motivation by integrating reward, effort, and fatigue signals in the brain.
Area of Science:
- Neuroscience
- Cognitive Psychology
- Decision Science
Background:
- Cognitive fatigue is a key aspect of goal management, influenced by motivational needs.
- Motivation-control interactions within brain networks are crucial for goal-directed behavior.
- Dopamine systems energize these motivational control networks.
Purpose of the Study:
- To provide a unified account of cognitive control, motivation, and dopamine in fatigue development.
- To explore how motivation-control interactions influence decision-making under fatigue.
- To propose a unifying cost-benefit model of fatigue's impact on motivation.
Main Methods:
- Systematic review and theoretical integration of neuroscience literature.
- Analysis of motivation-control interactions in brain networks.
- Development of a novel cost-benefit model for fatigue and motivation.
Main Results:
- Fatigue impairs large-scale brain network connectivity, reducing global integration.
- Neural states resulting from fatigue inform cost-benefit calculations.
- A cost-benefit model is proposed, converging reward, effort, and fatigue in the medial prefrontal cortex.
Conclusions:
- Fatigue significantly alters brain network connectivity and integration.
- The proposed model elucidates how fatigue modifies motivation via cost-benefit calculations.
- Understanding these mechanisms is vital for addressing fatigue in cognitive tasks.
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