Visual processing and infant ocular latencies in the overlap paradigm
Visual processing and infant ocular latencies in the overlap paradigm
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DOI：
10.1037/0012-1649.42.6.1069
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发表时间：
2006-11-01
影响因子：
4
通讯作者：
Colombo, John
中科院分区：
文献类型：
--
作者：
Blaga, Otilia A.;Colombo, John
幼儿的注视从中线刺激转移到外周刺激的速度比大婴儿慢。这通常被认为反映了介导注意力脱离的神经基质的成熟，但这种发育差异也可能归因于年幼婴儿对中线刺激的处理较慢。这种可能性在3个月和7个月大的婴儿中进行了两个实验，在重复试验中操纵中线刺激的熟悉程度。这些实验的结果表明，中线内容的处理确实会影响婴儿对外周刺激的眼潜伏期，但这种处理的发育差异并不能解释婴儿在第一年的分离方面的发育差异。
Young infants have repeatedly been shown to be slower than older infants to shift fixation from a midline stimulus to a peripheral stimulus. This is generally thought to reflect maturation of the neural substrates that mediate the disengagement of attention, but this developmental difference may also be attributable to young infants' slower processing of the midline stimulus. This possibility was tested with 3- and 7-month-old infants in 2 experiments in which the degree of familiarity of the midline stimulus was manipulated across repeated trials. The results of these experiments demonstrated that the processing of midline content does affect infants' ocular latencies to a peripheral stimulus but that developmental differences in such processing do not account for developmental differences in disengagement seen across the 1st year.