Reliability and validity of the psychomotor vigilance task to quantify cognitive fatigability in multiple sclerosis. Barzegarpoor H, Hu J, Fesenko O, Rybkin M, Newell C, Ashcroft S, Blaney A, Anvar S, Button D, Ploughman M Mult Scler Relat Disord. 2026 Jul 20; 113:107400. PMID: 42501583. Abstract CommentRecommendBookmarkWatch