Move it! Visual feedback enhances validity of preferential looking as a measure of individual differences in vocabulary in toddlers
Move it! Visual feedback enhances validity of preferential looking as a measure of individual differences in vocabulary in toddlers
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DOI：
10.1111/j.1467-7687.2008.00698.x
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发表时间：
2008-07-01
影响因子：
3.7
通讯作者：
Bishop, Dorothy V. M.
中科院分区：
文献类型：
--
作者：
Killing, Sarah E. A.;Bishop, Dorothy V. M.
40名20到24个月大的学步儿童被呈现给32对图像，其中听觉刺激的外观后面跟着目标图像的名称(例如，外观)。。。树)在多式联运优先寻找(IPL)范式中。同一系列的16个物品首先以一张图像为目标，然后以两个图像中的另一个成员为目标。在实验结束时，一半的孩子得到了目标图像的运动形式的反馈，而另一半孩子则得到了静态图像。IPL的表现是用词数来量化的，显示在命名后的间隔中，观看时间的比例至少增加了15%。对命名项目的观看偏好与父母的词汇报告相关，这种影响对收到反馈的人来说更强。接受反馈的儿童与家长词汇理解报告的相关系数为0.65，而没有反馈的儿童词汇理解与家长报告的相关性仅为0.37。结论：在小组研究中广泛使用的优先注视任务有可能成为个体儿童理解水平的可靠指标，特别是在使用动作反馈来维持注意力的情况下。
Forty toddlers aged 20 to 24 months were presented with 32 pairs of images with the auditory stimulus Look followed by the name of the target image (e.g. Look . . . tree) in an intermodal preferential looking (IPL) paradigm. The same series of 16 items was presented first with one image as target and then with the other member of the pair as target. Half the children were given feedback, in the form of movement of the target image at the end of the trial, while the other half were presented with static images. IPL performance was quantified in terms of number of words showing at least 15% increase in proportion of looking time in the post-naming interval. Looking preference for the named item was correlated with parental report of vocabulary, this effect being stronger for those receiving feedback. The correlation with parental report of vocabulary comprehension was .65 for those receiving feedback, but only .37 for those with no feedback. It is concluded that the preferential looking task, which has been widely used in group studies, has the potential to act as a reliable index of comprehension level in individual children, especially when movement feedback is used to maintain attention.