کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
371990 621950 2012 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Factors related to impaired visual orienting behavior in children with intellectual disabilities
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب رفتاری
پیش نمایش صفحه اول مقاله
Factors related to impaired visual orienting behavior in children with intellectual disabilities
چکیده انگلیسی

It is generally assumed that children with intellectual disabilities (ID) have an increased risk of impaired visual information processing due to brain damage or brain development disorder. So far little evidence has been presented to support this assumption. Abnormal visual orienting behavior is a sensitive tool to evaluate impaired visual information processing. Therefore, the main objective of this study was to investigate possible correlations between the children's characteristics (age, gender, level of ID, mobility, gestational age, cerebral palsy, Down syndrome, visual acuity, strabismus, nystagmus, and epilepsy), and abnormal visual orienting behavior. We quantified data on visual orienting behavior, in terms of visual processing time and ocular motor fixations, in 88 children with ID aged 4–14 years. These visual parameters were combined with data collected from the children's medical records (predictors) and were put in a Pearson bivariate correlation analysis. A predictor was included for multiple regression analysis if the Pearson's correlation coefficient had a level of significance of p < 0.05. As shown by multiple regression analysis, age, level of ID, and Down syndrome significantly affected visual processing time. Mobility, strabismus, and nystagmus significantly affected fixation quality.Using a systematic approach, we confirmed the hypothesis that children with ID have an increased risk of impaired visual information processing which is related to a low IQ.


► Visual orienting behavior in children with ID is related to IQ.
► Age, level of ID, and Down syndrome influence visual processing time.
► Peripheral ocular motor pathology influences fixation quality.
► Orienting responses can be studied using remote eye tracking.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Research in Developmental Disabilities - Volume 33, Issue 5, September–October 2012, Pages 1670–1676
نویسندگان
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