title: Perceptual and motor contributions to bimanual coordination.
abstract: Following earlier work by Mechsner et al. (Nature 414 (2001) 69), the purpose of this experiment was to determine the perceptual and motoric contributions to bimanual coordination. Twenty right-handed, healthy, young adults performed continuous, horizontal, linear movements of both upper limbs at frequencies of 1.5 and 2.0 Hz. The goal was to control the spatial-temporal displacement of two flags by coordinating upper limb movements in two perceptual conditions. In a congruent condition, the movement of the flags matched the movement of the upper limbs. In an incongruent condition, the movement of the flags was opposite to the movement of the upper limbs. Measures of error in coordination provided support primarily for a motor view of bimanual coordination, and failed to replicate the earlier findings of Mechsner et al.
authors.affiliation: School of Medicine, Faculty of Health Science, McMaster University, 1200 Main St. West, Hamilton, Ontario L8N 3Z5, Canada. salterj@muss.cis.mcmaster.ca
authors.forename: Jennifer E
authors.initials: JE
authors.lastname: Salter
authors.forename: Laurie R
authors.initials: LR
authors.lastname: Wishart
authors.forename: Timothy D
authors.initials: TD
authors.lastname: Lee
authors.forename: Dominic
authors.initials: D
authors.lastname: Simon
mesh_terms: D000328:Adult; D005260:Female; D007839:Functional Laterality / Q000502:physiology*; D006225:Hand / Q000294:innervation / Q000502:physiology; D006801:Humans; D007088:Illusions / Q000502:physiology; D008297:Male; D009068:Movement / Q000502:physiology*; D010775:Photic Stimulation; D011597:Psychomotor Performance / Q000502:physiology*; D013028:Space Perception / Q000502:physiology*; D013998:Time Perception / Q000502:physiology