title: The role of attention in priming for left-right reflections of object images: evidence for a dual representation of object shape.
abstract: Three experiments investigated the role of visual attention in priming for object images and their left-right reflections. Objects to which participants attended were visually primed in both the same view and in the left-right reflected view; ignored objects were primed only in the same view. The effects of attention (attended vs. ignored) and view (same vs. reflected) were strictly additive. These results suggest that 2 separate representations mediate human object recognition (J.E. Hummel & B.J. Stankiewicz, 1996): One requires attention but is invariant with left-right reflection, whereas the other can be activated automatically but is sensitive to left-right reflection. Both representations appear to be invariant with translation across the visual field.
authors.affiliation: Department of Psychology, University of California, Los Angeles, USA. bstankie@eye.psych.umn.edu
authors.forename: B J
authors.initials: BJ
authors.lastname: Stankiewicz
authors.forename: J E
authors.initials: JE
authors.lastname: Hummel
authors.forename: E E
authors.initials: EE
authors.lastname: Cooper
mesh_terms: D000704:Analysis of Variance; D001288:Attention / Q000502:physiology*; D005556:Form Perception / Q000502:physiology*; D006801:Humans; D013997:Time Factors