定格：一项新的婴儿抑制任务及其与婴儿期和幼儿期额叶皮质任务的关系。

Freeze-Frame: a new infant inhibition task and its relation to frontal cortex tasks during infancy and early childhood.

作者信息

Holmboe Karla, Pasco Fearon R M, Csibra Gergely, Tucker Leslie A, Johnson Mark H

机构信息

Centre for Brain and Cognitive Development, School of Psychology, Birkbeck College, University of London, London WC1E 7HX, UK.

出版信息

J Exp Child Psychol. 2008 Jun;100(2):89-114. doi: 10.1016/j.jecp.2007.09.004. Epub 2008 Feb 4.

DOI:10.1016/j.jecp.2007.09.004

PMID:18249410

Abstract

The current study investigated a new, easily administered, visual inhibition task for infants termed the Freeze-Frame task. In the new task, 9-month-olds were encouraged to inhibit looks to peripheral distractors. This was done by briefly freezing a central animated stimulus when infants looked to the distractors. Half of the trials presented an engaging central stimulus, and the other half presented a repetitive central stimulus. Three measures of inhibitory function were derived from the task and compared with performance on a set of frontal cortex tasks administered at 9 and 24 months of age. As expected, infants' ability to learn to selectively inhibit looks to the distractors at 9 months predicted performance at 24 months. However, performance differences in the two Freeze-Frame trial types early in the experiment also turned out to be an important predictor. The results are discussed in terms of the validity of the Freeze-Frame task as an early measure of different components of inhibitory function.

摘要

当前的研究调查了一种针对婴儿的新型、易于实施的视觉抑制任务，即定格任务。在这项新任务中，研究人员鼓励9个月大的婴儿抑制看向周边干扰物的目光。当婴儿看向干扰物时，通过短暂定格中央的动画刺激来实现这一点。一半的试验呈现一个引人入胜的中央刺激，另一半呈现一个重复性的中央刺激。从该任务中得出了三项抑制功能指标，并与在9个月和24个月大时进行的一组额叶皮质任务的表现进行了比较。正如预期的那样，婴儿在9个月时学会选择性抑制看向干扰物的目光的能力预测了其在24个月时的表现。然而，实验早期两种定格试验类型的表现差异也被证明是一个重要的预测指标。本文根据定格任务作为抑制功能不同组成部分早期测量方法的有效性对研究结果进行了讨论。