内外源提示下学障儿童注意定向的眼动研究

Eye Movements Performance Under Endogenous and Exogenous Cue In Learning Disabilities

对三、六年级22名学障儿童和22名按年龄、性别和受教育水平匹配的正常儿童在内外源提示下的注意表现进行了眼动研究。结果表明:当内源性提示有效性比例较低时,学障和正常儿童的提示效度效应均不明显;当提示目标间隔时间较长时,外源性提示有效性对各组被试的反应时无显著影响;在内外源性提示下,六年级儿童的绩效好于三年级;学障儿童在反应时间、加工速度上和正常儿童没有显著差异,但在加工广度和策略上不如正常儿童。这些结果表明学障儿童的注意定向和相关的认知加工能力与正常儿童有所差异。

Classical cue paradigm was employed to examine the endogenous and exogenous attention in learning disabilities group and age-, gender-, education-matched group with the equipment of EYELINK Ⅱ . The results happened to be that under the conditions of low endogenous cue predictivity and long SOAs of exogenous cue, no cue-validity effects was found in all groups;subjects in grade 6 performed better than those in grade time and cognitive speed between learning disabled and matched groups but with 3;there were no differences on response significant differences on cognitive span and strategy. These results indicated that the attentive quality of learning disabled differed from matched group to some extent.