执行功能对有口吃和无口吃儿童语音加工的影响。
The Influence of Executive Functions on Phonemic Processing in Children Who Do and Do Not Stutter.
作者信息
Sasisekaran Jayanthi, Basu Shriya
机构信息
Department of Speech-Language-Hearing Sciences, University of Minnesota, Twin Cities, Minneapolis.
出版信息
J Speech Lang Hear Res. 2017 Oct 17;60(10):2792-2807. doi: 10.1044/2017_JSLHR-S-17-0033.
PURPOSE
The aim of the present study was to investigate dual-task performance in children who stutter (CWS) and those who do not to investigate if the groups differed in the ability to attend and allocate cognitive resources effectively during task performance.
METHOD
Participants were 24 children (12 CWS) in both groups matched for age and sex. For the primary task, participants performed a phoneme monitoring in a picture-written word interference task. For the secondary task, participants made pitch judgments on tones presented at varying (short, long) stimulus onset asynchrony (SOA) from the onset of the picture.
RESULTS
The CWS were comparable to the children who do not stutter in performing the monitoring task although the SOA-based performance differences in this task were more variable in the CWS. The CWS were also significantly slower in making tone decisions at the short SOA and showed a trend for making more errors in this task.
CONCLUSIONS
The findings are interpreted to suggest higher dual-task cost effects in CWS. A potential explanation for this finding requiring further testing and confirmation is that the CWS show reduced efficiency in attending to the tone stimuli while simultaneously prioritizing attention to the phoneme-monitoring task.
目的
本研究旨在调查口吃儿童(CWS)和非口吃儿童的双任务表现,以探究两组在任务执行过程中有效分配注意力和认知资源的能力是否存在差异。
方法
两组参与者均为24名年龄和性别匹配的儿童(每组各12名CWS儿童和12名非口吃儿童)。对于主要任务,参与者在图片-书写单词干扰任务中进行音素监测。对于次要任务,参与者对从图片出现起以不同(短、长)刺激起始异步(SOA)呈现的音调进行音高判断。
结果
尽管基于SOA的表现差异在CWS儿童中更具变异性,但CWS儿童在执行监测任务时与非口吃儿童相当。CWS儿童在短SOA时做出音调判断也明显更慢,并且在该任务中出现更多错误的趋势。
结论
研究结果表明CWS儿童存在更高的双任务成本效应。对此发现的一个需要进一步测试和证实的潜在解释是,CWS儿童在优先关注音素监测任务的同时,对音调刺激的注意力效率降低。