title: Hemispheric effects of canonical views of category members with known typicality levels.
abstract: Is there a preferred hemispheric canonical view of a concept? We investigated this question in a natural superordinate category membership decision task using a hemifield paradigm. Participants had to decide whether or not an image of an object lateralized in the left (LVF) or right (RVF) visual half-field is a member of a predesignated superordinate category. The objects represented high, medium, or low typicality levels, and each object had six different perspective views (front, front-right, front-left, side, back-left, and back-right). The latency responses revealed a significant interaction of Hemi Field X View X Typicality (there wasno hemifield difference in accuracy). The findings confirm the presence of asymmetry in stored concepts in long-term memory and suggest, in addition, a hemispheric canonical view of these concepts, a view strongly related to typicality level.
authors.affiliation: Department of Psychology, University of California, Los Angeles, USA.
authors.forename: D W
authors.initials: DW
authors.lastname: Zaidel
authors.forename: A
authors.initials: A
authors.lastname: Kosta
mesh_terms: D000328:Adult; D001921:Brain / Q000502:physiology*; D003071:Cognition / Q000502:physiology*; D005260:Female; D007839:Functional Laterality / Q000502:physiology*; D006801:Humans; D008297:Male; D008568:Memory / Q000502:physiology; D011930:Reaction Time; D014794:Visual Fields / Q000502:physiology; D014796:Visual Perception / Q000502:physiology*