@article{Wolff2019-04-24Trait-45735,
  year={2019},
  doi={10.1155/2019/8527203},
  title={Trait Self-Control Outperforms Trait Fatigue in Predicting MS Patients’ Cortical and Perceptual Responses to an Exhaustive Task},
  issn={2090-5904},
  journal={Neural Plasticity},
  author={Wolff, Wanja and Schüler, Julia and Hofstetter, Jonas and Baumann, Lorena and Wolf, Lena and Dettmers, Christian},
  note={Article Number: 8527203}
}

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    <dc:contributor>Wolff, Wanja</dc:contributor>
    <dc:creator>Wolf, Lena</dc:creator>
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    <dcterms:title>Trait Self-Control Outperforms Trait Fatigue in Predicting MS Patients’ Cortical and Perceptual Responses to an Exhaustive Task</dcterms:title>
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    <dcterms:abstract xml:lang="eng">Patients with multiple sclerosis (PwMS) frequently suffer from fatigue, but this debilitating symptom is not yet fully understood. We propose that self-control can be conceptually and mechanistically linked to the fatigue concept and might help explain some of the diversity on how PwMS who suffer from fatigue deal with this symptom. To test this claim, we first assessed how cortical oxygenation and measures of motor and cognitive state fatigue change during a strenuous physical task, and then we tested the predictive validity of trait fatigue and trait self-control in explaining the observed changes. A sample of PwMS first completed a test battery to collect trait measures of fatigue and self-control. PwMS then performed an isometric hand contraction task at 10% of their maximum voluntary contraction until exhaustion while we repeatedly assessed ratings of perceived cognitive and motor exertion. In addition, we continuously measured oxygenation of the prefrontal cortex (PFC) using functional near-infrared spectroscopy. Linear mixed-effect models revealed significant increases in perceived motor and cognitive exertion, as well as increases in PFC oxygenation. Hierarchical stepwise regression analyses showed that higher trait self-control predicted a less steep increase in PFC oxygenation and perceived cognitive exertion, while trait fatigue did not predict change in any dependent variable. These results provide preliminary evidence for the suggested link between self-control and fatigue. As self-control can be enhanced with training, this finding possibly has important implications for devising nonpharmacological interventions to help patients deal with symptoms of fatigue.</dcterms:abstract>
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    <dc:contributor>Wolf, Lena</dc:contributor>
    <dc:creator>Wolff, Wanja</dc:creator>
    <dc:contributor>Dettmers, Christian</dc:contributor>
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    <dc:creator>Dettmers, Christian</dc:creator>
    <dc:creator>Schüler, Julia</dc:creator>
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    <dc:creator>Hofstetter, Jonas</dc:creator>
    <dc:contributor>Hofstetter, Jonas</dc:contributor>
    <dc:contributor>Schüler, Julia</dc:contributor>
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