The unique contribution of motor ability to visuospatial working memory in school‐age children: Evidence from event‐related potentials

This study investigated the unique contribution of motor ability to visuospatial working memory (VSWM) and neuroelectric activity in school‐age children. Seventy‐six children aged 8.7 ± 1.1 years participated in this cross‐sectional study. We assessed aerobic fitness using the 20‐m endurance shuttle run test, muscular fitness (endurance, power) using a standard test battery, and motor ability (manual dexterity, ball skills, and static and dynamic balance) using the Movement Assessment Battery for Children. A modified delayed match‐to‐sample test was used to assess VSWM and the P3 component of event‐related potentials. Hierarchical regression analyses indicated that greater aerobic fitness was associated with smaller coefficient of variation of reaction time (p = .008), greater muscular fitness was associated with higher response accuracy (p = .022), greater motor ability was associated with higher response accuracy (p