[Minimal brain dysfunction. Our investigation of choreiform syndrome in children with MBD (author's transl)].

It is the purpose of this communication to study statistical correlations between the different symptomes of MBD ; speech defect, dyslexia, hyperactivity, poor muscular control, give a school handicap for about 10 per cent of children, excluding cerebral palsy, sensorial trouble, or intellectual defect. The choreiforme syndrome is a systematic investigation in a group of 60 children selected with two symptomes of MBD. Choreiform movements are found in 48 per cent of our MBD patients (40 per cent of patients with hyperactivity and 50 per cent of patients with serious dyslexia).