Movement preparation time determines movement variability
Katrin Sutter, Leonie Oostwoud Wijdenes, Robert J. van Beers, W. Pieter Medendorp
Abstract
Fitts' law describes the speed-accuracy trade-off in the execution of human movements. We examined whether there is also a trade-off between movement planning time and initial movement precision. We show that shorter reaction times result in higher initial movement variability. In other words, movement preparation time determines movement variability.
Topics & Concepts
Movement (music)Cued speechKinematicsFitts's lawPsychologyWork (physics)Physical medicine and rehabilitationComputer scienceCommunicationCognitive psychologyMedicinePhilosophyAestheticsEngineeringMechanical engineeringClassical mechanicsPhysicsMotor Control and AdaptationMuscle activation and electromyography studiesEEG and Brain-Computer Interfaces