کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
917995 1473479 2015 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Children’s bilateral advantage for grasp-to-eat actions becomes unimanual by age 10 years
ترجمه فارسی عنوان
مزایای دو طرفه کودکان برای اقدامات درک برای خوردن به سن 10 سالگی غیرمعمول می شود
موضوعات مرتبط
علوم انسانی و اجتماعی روانشناسی روانشناسی رشد و آموزشی
چکیده انگلیسی


• We contrast grasp-to-eat grasp-to-place kinematics in children aged 7–9 and 10–12.
• Kinematic grasp-to-eat advantage identified in both groups (smaller MGAs produced).
• Bilateral advantage among young children; lateralized to right hand in older group.
• Lateralization resembles adult behaviour; interpreted as advantage for self-feeding.
• Grasp movement is described, adding to catalogue of normal developmental kinematics.

Studies have shown that infants tend to develop a lateralized hand preference for hand-to-mouth actions earlier than they do a preference for many other grasp-to-place or grasp-to-manipulate tasks, years even before direction of hand preference can be reliably determined. This observation has led to a series of studies contrasting the kinematics of grasp-to-eat and grasp-to-place actions in adults. These studies have described a robust kinematic asymmetry between left- and right-handed grasp-to-eat maximum grip apertures (MGAs) that has been interpreted as a right-hand advantage for feeding that may have led to right-handedness as observed on a global scale. The current study examines grasp-to-eat and grasp-to-place kinematics in two groups of typically developing children aged 7 to 12 years. It was found that the previously described task difference is present in both hands among younger children and that the effect does not become lateralized until the end of the first decade of life. Additional kinematics of both the dominant and non-dominant hands are described in detail to augment a growing catalogue of reach-to-grasp action descriptions for typically developing children. The maturation of the right-hand advantage for grasp-to-eat actions is discussed in terms of an inherent right-hand/left-hemisphere bias for such actions that may have influenced the development of population-level right-handedness in humans.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Experimental Child Psychology - Volume 133, May 2015, Pages 57–71
نویسندگان
, ,