A novel gaze-based visual search task for children with CVI: A twin study.
Visual search is often impaired in children with cerebral visual impairment (CVI), but the current assessment of visual search performance is limited. This study aimed to investigate underlying visual search processes in detail by including gaze-based measurements. Twin brothers (age 11.8 years), on...
| Published in: | British Journal of Visual Impairment Vol. 43; no. 2; pp. 342 - 350 |
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| Main Authors: | , , , |
| Format: | case study pictorial tables/charts Journal Article |
| Published: |
Sage Publications Inc.
May2025
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| Online Access: | View this record in EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=185001774&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 185001774 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 02646196 2WMR jtl: British Journal of Visual Impairment issn: 02646196 maglogo: Y pubinfo: dt: May2025 vid: 43 iid: 2 pid: 344 pub: Sage Publications Inc. place: Thousand Oaks, California artinfo: ui: 185001774 176826550 185001774 185001774 10.1177/02646196241247973 185001774 ppf: 342 ppct: 8 formats: tig: atl: A novel gaze-based visual search task for children with CVI: A twin study. aug: au: Hokken, Marinke J Stein, Niklas Kooiker, Marlou JG Pel, Johan J affil: Royal Dutch Visio, the Netherlands sug: subj: Brain Diseases Pathology Vision Disorders Diagnosis Eye Movements Physiology Visual Perception Evaluation Mental Processes Evaluation Attention Task Performance and Analysis Male Child Mental Disorders Diagnosed in Childhood Child: 6-12 years Male ab: Visual search is often impaired in children with cerebral visual impairment (CVI), but the current assessment of visual search performance is limited. This study aimed to investigate underlying visual search processes in detail by including gaze-based measurements. Twin brothers (age 11.8 years), one diagnosed with CVI and one with neurotypical development, underwent a newly developed conjunction visual search task while simultaneously their gaze was recorded. In addition to speed and accuracy, we analyzed additional timing and spatial parameters of the search process before and after their initial fixation in the target area. The twin with CVI had good visual sensory functions, but impaired search performance indicated by longer search time and larger search areas. Also, it was observed that in more difficult task conditions, he tended to miss the target, even when fixating on it. These results point towards higher-order visual deficits. This study gives insight into the visual search challenges of a child with CVI. Mapping the search process in detail provided new and distinctive information that can shape more tailored support. Coupling verbal and nonverbal gaze-based outcomes is a promising first step towards a more inclusive nonverbal and nonmotor assessment. pubtype: Academic Journal doctype: case study pictorial tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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