Figure 7.

(A) ERD of mean alpha activity as a function of time, from 4 seconds before pressing the button to 2 seconds after button press for three participants: a control participant (CRT; black line), an adult patient with hemiparesis (CPA; red line) and an adolescent with CP (CPY; blue line). Results were obtained for movements with the left hand. (B) The same as in (A) for the right hand. Participant CPA had a hemiparesis of the right side and was unable to perform the test with the right hand. (C–H) Mean ERD values for each experimental session – sessions 1, 2 and 3. Each point corresponds to the individual mean ERD value computed within the time window [0.5, 1.5] seconds after the button press. Panels (C and D) illustrate results obtained with the best/second hand for individuals in the control group (CTR). The equivalent is represented for individuals in the group of adolescents with CP (CPY) in panels (E and F) and for adult patients (CPA) in panels (G and H).

Abbreviations: ERD, event-related desynchronization; CP, cerebral palsy.