Developmental Progression of Looking and Reaching Performance on the A-Not-B Task
Developmental Progression of Looking and Reaching Performance on the A-Not-B Task
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DOI：
10.1037/a0020185
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发表时间：
2010-09-01
影响因子：
4
通讯作者：
Bell, Martha Ann
中科院分区：
文献类型：
--
作者：
Cuevas, Kimberly;Bell, Martha Ann
从神经心理学的角度来看，工作记忆、抑制和注意力的认知技能以及额叶的成熟是在看和够两种任务中取得成功的a -not- b表现的必要条件。本研究采用纵向设计来考察婴儿在a -非- b任务中看和够的表现的发展进程。从5个月到10个月大的20名婴儿每月接受一次两种版本的测试。5到8个月大的婴儿在看的任务上有更高的物体持久性得分，9个月和10个月大的婴儿在不同反应模式下的表现相当。在非逆转(A)试验中也发现了同样的表现模式：婴儿在5到7个月的观察试验中表现更好，在8到10个月的两种反应试验中表现相同。总的来说，婴儿在看逆转(B)试验中比达到逆转试验表现更好。这些数据表明，发育早期不同反应模式的表现差异可归因于与实际任务反应相关的大脑回路成熟度的主要差异。
From a neuropsychological perspective, the cognitive skills of working memory, inhibition, and attention and the maturation of the frontal lobe are requisites for successful A-not-B performance on both the looking and reaching versions of the task. This study used a longitudinal design to examine the developmental progression of infants' performance on the looking and reaching versions of the A-not-B task. Twenty infants were tested on both versions of the task once a month from 5 to 10 months of age. Infants had higher object permanence scores on the looking version of the task from 5 to 8 months, with comparable performance across response modalities at 9 and 10 months. The same pattern of performance was found on nonreversal (A) trials: Infants performed better on looking trials from 5 to 7 months, and they performed equally on both response trials from 8 to 10 months. Overall, infants performed better on looking reversal (B) trials than reaching reversal trials. These data suggest that performance differences between response modalities early in development can be attributed to major differences in the maturation of brain circuitry associated with the actual task response.