Evidence for an eye-centered spherical representation of the visuomotor map

During visually guided movement, visual coordinates of target location must be transformed into coordinates appropriate for movement. To investigate t he representation of this visuomotor coordinate transformation, we examined changes in pointing behavior induced by a local visuomotor remapping. The visual feedback of finger position was limited to one location within the w orkspace, at which a discrepancy was introduced between the actual and visu ally perceived finger position. This remapping induced a change in pointing that extended over the entire workspace and was best captured by a spheric al coordinate system centered near the eyes.