University of Toronto Scarborough.
Child Dev. 2014 Jul-Aug;85(4):1373-84. doi: 10.1111/cdev.12212. Epub 2014 Jan 10.
Children's ability to flexibly shift attention between different representational schemes was investigated using the dimensional change card sorting task. Across three experiments (N = 56 three-year-olds and N = 40 four-year-olds in ; N = 14 three-year-olds in ; and N = 14 three-year-olds in ) the role of perceptual information on children's cognitive flexibility was investigated by manipulating different aspects of the task materials between pre- and postswitch phases. Better performance was observed when either task-relevant (the color or shape of the images on the cards) or task-irrelevant information (the background color or shape of the actual cards) was changed, with this improvement occurring when the changes were salient enough to induce a stimulus novelty effect.
采用维度变化卡片分类任务，研究了儿童在不同表征模式之间灵活转移注意力的能力。在三个实验中（实验 1：N=56 名 3 岁儿童和 N=40 名 4 岁儿童；实验 2：N=14 名 3 岁儿童；实验 3：N=14 名 3 岁儿童），通过在预转换和后转换阶段之间改变任务材料的不同方面，研究了知觉信息对儿童认知灵活性的影响。当改变任务相关（卡片上图像的颜色或形状）或任务无关（实际卡片的背景颜色或形状）信息时，观察到了更好的表现，并且当改变足够显著以引起刺激新颖性效应时，这种改善就会发生。
