title: Amodal completion and localization.
abstract: In a three-line vernier acuity task, a central line was localized between two aligned line segments. Accuracy did not improve when the segments formed a unified amodally completed percept. In a two-line vernier acuity task, a line was localized below a target line placed next to a physically segmented flank stimulus. Shifts in mean points of subjective equality suggested that amodally completed segments influenced localization. Previous conflicting findings are explained by a representation that is available early to influence perceived alignment. However, position tuning is poor. This representation may be realized physiologically by interpolation responses between amodally completed segments.
authors.affiliation: Department of Psychology, University of Detroit Mercy, MI 48219-0900, USA. greenehh@udmercy.edu
authors.forename: H H
authors.initials: HH
authors.lastname: Greene
authors.forename: J M
authors.initials: JM
authors.lastname: Brown
mesh_terms: D000328:Adult; D005556:Form Perception / Q000502:physiology*; D006801:Humans; D008297:Male; D014787:Vision Tests