title: Age-related differences in predictive response timing in children: evidence from regularly relative to irregularly paced reaction time performance.
abstract: Predictive timing refers to the anticipation and precise timing of planned motor responses. This study was performed to investigate children's predictive response timing abilities while accounting for confounding age-related effects of motor speed. Indices of predictive timing were evaluated for their contributions in motor skill proficiency as well. Eighty typically developing children in 4 age groups (5-6, 7-8, 9-10 and 11-12 years) performed a visuomotor reaction time (RT) test. Differences in speed and anticipatory responding at regularly relative to irregularly paced stimuli were evaluated as indices of predictive timing. Also, explicit timing and motor tests (M-ABC-2, VMI tracing, and KTK jumping) were administered. Significant faster responding for regularly versus irregularly paced stimuli was found from the ages of 9-10 years on. Better anticipatory responding behavior for regular in contrast with irregular stimuli was found to be present already at 7-8 years. Overall, predictive timing abilities increased across the 4 age groups. Also, inter-individual differences in the speed indices of predictive timing contributed to predicting VMI tracing and KTK jumping outcomes when controlling for age and overall motor response speed. In conclusion, predictive motor timing abilities increase during age 5 to 12 and correlate with motor skill performance.
authors.affiliation: Department of Rehabilitation Sciences and Physiotherapy, Ghent University and Artevelde University College, Campus Heymans, Ghent University, 2B3 (REVAKI), De Pintelaan 185, B-9000 Ghent, Belgium. Julie.debrabant@ugent.be
authors.forename: Julie
authors.initials: J
authors.lastname: Debrabant
authors.forename: Freja
authors.initials: F
authors.lastname: Gheysen
authors.forename: Guy
authors.initials: G
authors.lastname: Vingerhoets
authors.forename: Hilde
authors.initials: H
authors.lastname: Van Waelvelde
mesh_terms: D000367:Age Factors; D059031:Anticipation, Psychological; D001076:Aptitude; D002648:Child; D002675:Child, Preschool; D003118:Color Perception; D056228:Feedback, Sensory; D005260:Female; D006801:Humans; D007206:Individuality; D008297:Male; D009048:Motor Skills; D010364:Pattern Recognition, Visual; D004856:Postural Balance; D011597:Psychomotor Performance; D011930:Reaction Time; D013998:Time Perception