When does inter-hemispheric integration of visual events emerge in infancy?: A developmental study on 19-to 28-month-old infants
When does inter-hemispheric integration of visual events emerge in infancy?: A developmental study on 19-to 28-month-old infants
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DOI：
10.1016/s0028-3932(00)00041-5
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发表时间：
2000-01-01
期刊：
影响因子：
2.6
通讯作者：
de Schonen, S
中科院分区：
文献类型：
--
作者：
Liégeois, F;Bentejac, L;de Schonen, S
研究了19-23个月和24-28个月大的婴儿在两个视野中的同时注意和视觉信息的半球间整合。刺激是示意性的面孔，其中眼睛的公平是由两个相同的（两个圆圈或两个三角形）或两个不同的眼睛（三角形-圆圈，圆圈-三角形）。面孔呈现在一个视觉半野，在右侧或左侧的中央固定点（单侧介绍），或在两个视觉半野（双侧介绍），与一只眼睛的刺激在固定点的每一侧。这项任务是一项操作性条件反射任务，儿童必须决定两只眼睛的形状是否相同。结果表明，即使是年轻的受试者能够执行的任务时，提出了在单边介绍条件，而只有24个月及以上的儿童可以学习的任务时，提出了在双边条件。它的结论是，同时注意到两个视野和半球间协调的视觉信息出现很晚的发展在24个月左右的年龄。(C)2000爱思唯尔科技有限公司版权所有。
Simultaneous attention in the two visual fields and interhemispheric integration of visual information was studied in 19-23 and 24-28-month-old infants. The stimuli were schematic faces within which the Fair of eyes was made of either two identical (two circles or two triangles) or two different eyes (triangle-circle, circle-triangle). The faces were presented either in one visual hemifield, on the right or left side of a central fixation point (unilateral presentation), or across the two visual hemifields (bilateral presentation), with one eye of the stimulus on each side of the fixation point. The task was an operant conditioning task where the children had to decide whether the shapes of the two eyes were identical or not. The results show that even the younger subjects were able to perform the task when presented in the unilateral presentation condition, whereas only children aged 24 months and older could learn the task when presented in the bilateral condition. It is concluded that simultaneous attention to the two visual fields and inter-hemispheric co-ordination of visual information emerge very late in development at about the age of 24 months. (C) 2000 Elsevier Science Ltd. All rights reserved.