title: Abnormal spatial selection and tracking in children with amblyopia.
abstract: We assessed 18 children with unilateral amblyopia and 30 age-matched controls on one low-level and three high-level motion tasks. Children with amblyopia showed similar performance to controls in both amblyopic and fellow eyes on a low-level global motion task and on a high-level 2-dot apparent motion task. Performance on both single-object and multiple-object attentive tracking tasks was significantly depressed in both amblyopic and fellow eyes relative to controls. These findings suggest that binocular regions of posterior parietal cortex likely contribute to a deficit in voluntary, spatial attention that is a component of amblyopia.
authors.affiliation: Department of Ophthalmology and Visual Sciences, University of British Columbia, Vancouver, BC, Canada.
authors.forename: C S
authors.initials: CS
authors.lastname: Ho
authors.forename: P S
authors.initials: PS
authors.lastname: Paul
authors.forename: A
authors.initials: A
authors.lastname: Asirvatham
authors.forename: P
authors.initials: P
authors.lastname: Cavanagh
authors.forename: R
authors.initials: R
authors.lastname: Cline
authors.forename: D E
authors.initials: DE
authors.lastname: Giaschi
mesh_terms: D000293:Adolescent; D000550:Amblyopia / Q000523:psychology*; D000704:Analysis of Variance; D001288:Attention; D016022:Case-Control Studies; D002648:Child; D006801:Humans; D009039:Motion Perception; D011581:Psychological Tests; D015348:Vision, Binocular; D014792:Visual Acuity