Fig. 4

A Z-score and standard deviation for each task-specific variable B, C distribution of impairments. A Normalized score (z-score) and standard deviation for each variable of the Visually Guided Reaching for the more affected (MA) arm and the less affected (LA) arm (unilateral). The grey dots represent the MA arm and the black ones represent LA arm. The red (worst performance than the norm) and blue lines (better performance than the norm) represent the 97.5% performance range of healthy controls (z-score = − 1.96 and 1.96). Note that depending on the variable, a positive or negative z-score can represent a deficit. The percentage of participants having impairments for each task-specific variable is indicated. B Distribution of impairments across variables and participants for the more affected arm (a black square indicating a deficit). The percentage of impaired participants is indicated for each category. C Distribution of impairments across variables and participants for the less affected arm (a grey square indicating a deficit). The percentage of impaired participants is indicated for each category. MA more affected, LA less affected