title: Orienting responses to various visual stimuli in children with visual processing impairments or infantile nystagmus syndrome.
abstract: Quantification of orienting responses can be used to differentiate between children with cerebral visual impairment and infantile nystagmus syndrome. To further improve the sensitivity of this method, we compared orienting responses to a Cartoon stimulus, which contains all sorts of visual information, to stimuli that contain only Contrast, Form coherence, Motion coherence, Color and Motion detection. The stimuli were shown on an eye tracker monitor using a preferential looking paradigm. We found that both groups of children showed general slowing in orienting responses compared to controls. The children with cerebral visual impairment had significantly prolonged responses to Cartoon compared to the children with nystagmus, whereas the children with nystagmus had prolonged responses to Motion detection and larger fixation areas. Previously reported differences in orienting responses to Cartoon were replicated. Application of specific visual information did not alter the sensitivity of the method to distinguish between children with visual processing deficits.
authors: Department of Neuroscience, Vestibular and ocular motor research group, Rotterdam, The Netherlands j.pel@erasmusmc.nl.
authors: J J M
authors: JJ
authors: Pel
authors: Department of Neuroscience, Vestibular and ocular motor research group, Rotterdam, The Netherlands.
authors: M J G
authors: MJ
authors: Kooiker
authors: Department of Neuroscience, Vestibular and ocular motor research group, Rotterdam, The Netherlands.
authors: J M E
authors: JM
authors: van der Does
authors: Department of Neuroscience, Vestibular and ocular motor research group, Rotterdam, The Netherlands.
authors: F H
authors: FH
authors: Boot
authors: Department of Ophthalmology, Rotterdam Eye Hospital, Rotterdam, The Netherlands.
authors: J T
authors: JT
authors: de Faber
authors: Royal Dutch VISIO, Huizen, The Netherlands.
authors: S P
authors: SP
authors: van der Steen-Kant
authors: Department of Neuroscience, Vestibular and ocular motor research group, Rotterdam, The Netherlands Royal Dutch VISIO, Huizen, The Netherlands.
authors: J
authors: J
authors: van der Steen
mesh_terms: D002648:Child; D002675:Child, Preschool; D005260:Female; D005403:Fixation, Ocular; D006801:Humans; D008297:Male; D009039:Motion Perception / Q000502:physiology; D009759:Nystagmus, Pathologic / Q000503:physiopathology*; D009949:Orientation / Q000502:physiology*; D010775:Photic Stimulation; D011930:Reaction Time / Q000502:physiology*; D014786:Vision Disorders / Q000503:physiopathology*
keywords: cerebral visual impairment; eye movements; nystagmus; visual development