title: The utility of vision during action: multiple visuomotor processes?
abstract: Recently, D. Elliott et al. (2010) asserted that the current control phase of a movement could be segregated in multiple processes, including impulse and limb-target regulation processes. The authors aimed to provide further empirical evidence and determine some of the constraints that govern these visuomotor processes. In 2 experiments, vision was presented or withdrawn when limb velocity was above or below selected velocity criteria. The authors observed that vision provided between 0.8 and 0.9 m/s significantly improved impulse regulation processes while vision provided up to 1.1 m/s significantly increased limb-target regulation processes. These results lend support to D. Elliott et al. and provide evidence that impulse regulation and limb-target regulation can take place at different velocities during a movement.
authors: Faculty of Kinesiology and Physical Education, University of Toronto, Toronto, Ontario, Canada. luc.tremblay@utoronto.ca
authors: Luc
authors: L
authors: Tremblay
authors: Steve
authors: S
authors: Hansen
authors: Andrew
authors: A
authors: Kennedy
authors: Darian T
authors: DT
authors: Cheng
mesh_terms: D000328:Adult; D000704:Analysis of Variance; D001696:Biomechanical Phenomena; D005121:Extremities / Q000502:physiology; D056228:Feedback, Sensory / Q000502:physiology; D005260:Female; D005385:Fingers / Q000502:physiology; D006801:Humans; D008297:Male; D008960:Models, Psychological; D011597:Psychomotor Performance / Q000502:physiology*; D014785:Vision, Ocular / Q000502:physiology*; D014796:Visual Perception / Q000502:physiology; D055815:Young Adult