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Behavioral approach reduces cognitive fatigue in multiple sclerosis, study shows – Science Daily

A recent article by MS researchers describes a new nonpharmacological approach to reduce cognitive fatigue, a disabling symptom reported by as many as 90% of individuals with multiple sclerosis (MS). Using functional neuroimaging, they demonstrated that the prospect of monetary reward stimulates the fronto-striatal network, resulting in the reduction of cognitive fatigue in individuals with MS and healthy controls. This is the first study to demonstrate this effect in an MS population.

The article, “Fronto-striatal network activation leads to less fatigue in multiple sclerosis” was published online on June 19, 2017, in Multiple Sclerosis Journal. The authors are Ekaterina Dobryakova, PhD, Angela Spirou, MS, Nancy Chiaravalloti, PhD, Helen Genova, PhD, Glenn Wylie, DPhil, and John DeLuca, PhD, of Kessler Foundation, and Hanneke Hulst, PhD, of VU University Medical Center, Amsterdam, The Netherlands.

Studies show that the fronto-striatal network is involved in cognitive fatigue, which can be modulated by both pharmacological andnon pharmacological interventions. In this study, investigators examined the effects of a nonpharmacological intervention in 14 healthy controls and 19 individuals with MS. All participants underwent functional MRI while performing a gambling task. They were tested under two conditions: ‘outcome’ and ‘no outcome’. For the outcome condition, they were offered the opportunity to win a monetary reward; for the no outcome condition, no reward was offered.

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