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Assessment tool for visual perception deficits in cerebral visual impairment: development and normative data of typically developing children
Author(s) -
Vancleef Kathleen,
Janssens Eva,
Petré Yasmine,
Wagemans Johan,
Ortibus Els
Publication year - 2020
Publication title -
developmental medicine and child neurology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.658
H-Index - 143
eISSN - 1469-8749
pISSN - 0012-1622
DOI - 10.1111/dmcn.14303
Subject(s) - normative , visual perception , psychology , audiology , visual impairment , perception , developmental psychology , medicine , psychiatry , philosophy , epistemology , neuroscience
Aim To develop an assessment tool that measures a wide range of visual perceptual deficits common in cerebral visual impairment ( CVI ) and to provide normative data from typically developing children between 3 and 6 years of age. Method Test development reflected cross‐talk between vision research and clinical relevance for CVI . The Children's Visual Impairment Test for 3‐ to 6‐year‐olds ( CVIT 3–6) includes 14 subtests covering four domains of visual perception: Object Recognition, Degraded Object Recognition, Motion Perception, and Global–Local Processing. Normative data were collected from 301 typically developing children (mean age 4y 8mo [ SD 9.7mo]; 148 females, 153 males). A questionnaire was administered to parents about pregnancy duration, birth, and developmental problems. Results Average total CVIT 3–6 performance was 60.1 ( SD 5.5) out of 70. The cut‐off score for normal visual perception (53) was set at the 10th centile of scores in typically developing children. Multiple regression indicated CVIT 3–6 visual perception scores increase with age for children born at 36 weeks’ gestational age or later (β=−18.03, 95% confidence interval −31.31 to −4.75). Interpretation CVIT 3–6 is a tool to assess a wide range of visual perceptual deficits common in CVI . Age‐dependent normative data are available because we found performance increased with age. What the paper adds A test for visual perceptual deficits common in cerebral visual impairment. Visual perceptual functions improve with age in full‐term typically developing children.