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Relation between results at the ALEFq and clinical scores. The multiple regression analysis (see Supplementary material) on the ALEFq scores indicates that a higher number of altered feelings reported at the questionnaire correlate with RBDs (A), low proprioception (B) and cognitive disabilities (C). B and C are partial regression plots (z-scores, on the y-axis higher values indicate higher distortions, on the x-axis higher values indicate higher performances).
