title: Visual-spatial and anatomical constraints interact in a bimanual coordination task with transformed visual feedback.
abstract: There is a debate in the literature about the influence of spatial and anatomical constraints on bimanual coordination dynamics. In the present experiment, participants swung hand-held pendulums about the wrist while attending to visual feedback about relative phase (superimposed phase plots of each pendulum) that was displayed on a screen. Participants were instructed to maintain in-phase or anti-phase coordination in the visual display. Visual-spatial and anatomical constraints were dissociated by introducing a phase shift in the visual display so that visual feedback differed from the movements being performed by the participants in 15 degrees increments from -180 degrees to +180 degrees. Analysis of mean relative phase and its variability suggested that visual-spatial and anatomical constraints interact in bimanual coordination dynamics.
authors.affiliation: Department of Psychology, Arizona State University, Box 871104, Tempe, AZ 85287-1104, USA. Eric.Amazeen@ASU.edu
authors.forename: Eric L
authors.initials: EL
authors.lastname: Amazeen
authors.forename: Flavio
authors.initials: F
authors.lastname: Dasilva
authors.forename: Polemnia G
authors.initials: PG
authors.lastname: Amazeen
mesh_terms: D005246:Feedback / Q000502:physiology; D005260:Female; D005385:Fingers / Q000502:physiology*; D006801:Humans; D008297:Male; D008959:Models, Neurological; D010775:Photic Stimulation; D011597:Psychomotor Performance / Q000502:physiology*; D013028:Space Perception / Q000502:physiology*; D014955:Wrist Joint / Q000502:physiology*