title: Object-based mental rotation and visual perspective-taking in typical development and Williams syndrome.
abstract: This study examined Object-based (OB) rotation and Visual Perspective-Taking (VPT) abilities in Williams syndrome (WS) compared to typically developing (TD) 5-10-year-olds. Extensive difficulties with both types of imagined rotation were observed in WS; WS performance was in line with the level of ability observed in TD 5-year-olds. However, an atypical pattern of errors on OB and VPT tasks was observed in WS compared to TD groups. Deficits in imagined rotations are consistent with known atypical cortical development in WS. Such difficulties in updating the position of the self following movement in WS may have implications for large-scale spatial navigation.
authors.affiliation: a Psychology and Human Development , Institute of Education , London , United Kingdom.
authors.forename: Hannah J
authors.initials: HJ
authors.lastname: Broadbent
authors.forename: Emily K
authors.initials: EK
authors.lastname: Farran
authors.forename: Andrew
authors.initials: A
authors.lastname: Tolmie
mesh_terms: D000704:Analysis of Variance; D016022:Case-Control Studies; D002648:Child; D002657:Child Development; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007092:Imagination; D007361:Intelligence Tests; D008297:Male; D009038:Motion; D009068:Movement; D009483:Neuropsychological Tests; D011597:Psychomotor Performance; D012399:Rotation; D013028:Space Perception / Q000502:physiology*; D014796:Visual Perception / Q000502:physiology*; D018980:Williams Syndrome / Q000503:physiopathology*