Abstract: ObjectiveTo observe the characteristic of reaction times (RTs) in the brain injury children.Methods65 children with brain injury, including 50 cerebral palsy (CP) cases, 13 brain trauma (BT) cases and 2 other cases, were selected as the experimental group, and 29 age-matched normal children as the control group. Children of two groups were tested by the eye-hand visual reaction times (VRTs), and children of the experimental group were also tested with Wechsler preschool and primary scale of intelligence (WPPSI), Wechsler intelligence scale for children (WISC-R) and comprehensive function assessment.ResultsThe VRTs of the experimental group children was significantly slower than that of the control group (P<0.01). There was no significant difference in VRTs test between CP and BT children (P>0.05). The motor time of VRTs of the severe subjects in the experimental group was significantly slower than that of moderate and light subjects (P<0.01). There was a negative correlation between VRTs and the scores of IQ, PIQ and the comprehensive function assessment.ConclusionThe attention and the motor speed of muscles are abnormal in children with brain injury.

Key words: brain injury, reaction time, neurobehavior, rehabilitation, concentration, child