title: The relationship between visual orienting responses and clinical characteristics in children attending special education for the visually impaired.
abstract: We recently introduced a method based on quantification of orienting responses toward visual stimuli to assess the quality of visual information processing in children. In the present study, we examined the relationship between orienting responses and factors that are associated with visual processing impairments in current clinical practice. Response time and fixation quality to visual features such as form, contrast, motion, and color stimuli were assessed in 104 children from 1 to 12 years attending special education for the visually impaired. Using regression analysis, we investigated whether these parameters were affected by clinical characteristics of children. Response times significantly depended on stimulus type. Responses to high-contrast cartoons were significantly slower in children with a clinical diagnosis of cerebral visual impairment. Fixation quality was significantly affected by visual acuity and nystagmus. The results suggest that the quantitative measurement of orienting responses is strongly related to cerebral visual impairment in children.
authors.affiliation: Vestibular and Ocular Motor Research Group, Department of Neuroscience, Erasmus MC, Rotterdam, the Netherlands m.kooiker@erasmusmc.nl.
authors.forename: Marlou J G
authors.initials: MJ
authors.lastname: Kooiker
authors.affiliation: Vestibular and Ocular Motor Research Group, Department of Neuroscience, Erasmus MC, Rotterdam, the Netherlands.
authors.forename: Johan J M
authors.initials: JJ
authors.lastname: Pel
authors.affiliation: Vestibular and Ocular Motor Research Group, Department of Neuroscience, Erasmus MC, Rotterdam, the Netherlands Royal Dutch VISIO, Huizen, the Netherlands.
authors.forename: Johannes
authors.initials: J
authors.lastname: van der Steen
mesh_terms: D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D004519:Education, Special; D005260:Female; D005403:Fixation, Ocular; D006801:Humans; D007223:Infant; D008297:Male; D009483:Neuropsychological Tests; D009759:Nystagmus, Pathologic / Q000503:physiopathology; D009949:Orientation; D010364:Pattern Recognition, Visual; D010775:Photic Stimulation / Q000379:methods; D011930:Reaction Time; D014786:Vision Disorders / Q000503:physiopathology* / Q000523:psychology*; D014785:Vision, Ocular
keywords: cerebral visual impairment; children; clinical characteristics; visual information processing; visual orienting behavior