کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6273076 1614790 2015 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Children with Developmental Coordination Disorder are deficient in a visuo-manual tracking task requiring predictive control
ترجمه فارسی عنوان
کودکان مبتلا به اختلال هماهنگی در حال پیشرفت در یک وظیفه ردیابی دستی هستند که نیاز به کنترل پیش بینی شده دارند
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب (عمومی)
چکیده انگلیسی
The aim of this study was to examine how feedback, or its absence, affects children with Developmental Coordination Disorder (DCD) during a visuo-manual tracking task. This cross-sectional study included 40 children with DCD and 40 typically developing (TD) children between 6 and 10 years old. Participants were required to track a target moving along a circular path presented on a monitor by moving an electronic pen on a digitizing tablet. The task was performed under two visibility conditions (target visible throughout the trajectory and target intermittently occluded) and at two different target velocities (30° and 60° per second). Variables reflecting tracking success and tracking behavior within the target were compared between groups. Results showed that children with DCD were less proficient in tracking a moving target than TD children. Their performance deteriorated even more when the target was occluded and when the target speed increased. The mean tracking speed of the DCD group exceeded the speed at which the target rotated which was attributed to accelerations and decelerations made during tracking. This suggests that children with DCD have significant difficulties in visuo-manual tracking especially when visual feedback is reduced. It appears that their impaired ability to predict together with impairments in fine-tuning arm movements may be responsible for poor performance in the intermittently occluded visuo-manual tracking task.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Neuroscience - Volume 286, 12 February 2015, Pages 13-26
نویسندگان
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