Auditory-motor coupling of bilateral finger tapping in children with and without DCD compared to adults.

摘要: The ability to modulate bilateral finger tapping in time different frequencies of an auditory beat was studied. Twenty children, 7 years age, ten with and without Developmental Coordination Disorder (DCD), adults tapped their left index right middle fingers alternating pattern signal for 15 s (4 trials each, randomly, at 0.8, 1.6, 2.4, 3.2 Hz per finger). Dominant non-dominant data were collapsed since no differences emerged. All three groups able frequency across closely approximate the but children DCD unable slow down lowest frequency. Children more variable tap accuracy (SD relative phase) between-finger coordination than typically developing who respectively adults. consistently synchronize beat. Adults tightly synchronized often ahead while tended be behind Overall, these results indicated that can only broadly match movements variability poor synchronicity as key features auditory-fine motor control. Individual inspection revealed 5 had difficulty matching slowest also higher lower percentile MABC scores from Movement Assessment Battery (MABC) other DCD. Three two performed like children.