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首页> 外文期刊>Journal of speech, language, and hearing research: JSLHR >Investigating mechanisms of suppression in preschool children with specific language impairment.
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Investigating mechanisms of suppression in preschool children with specific language impairment.

机译：对具有特定语言障碍的学龄前儿童进行抑制的调查机制。

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摘要

PURPOSE: This study investigated 2 suppression mechanisms--(a) resistance to distracter interference and (b) inhibition of a prepotent response--in preschool children with specific language impairment (SLI) and their typically developing peers. METHOD: Twenty-two preschool children with SLI and 22 typically developing controls participated in this study. The resistance to distracter interference task involved suppressing distracters (nonverbal auditory, linguistic, and visual) that were external and irrelevant to the task goal. Inhibition was assessed using a stop-signal paradigm to evaluate the ability to suppress a prepotent, conflicting response. RESULTS: The children with SLI exhibited decreased resistance to distracter interference regardless of distracter modality and poor inhibitory control relative to their typically developing peers. CONCLUSION: These results identify suppression weaknesses in preschool-age children with SLI. Specifically, children with this disorder exhibited difficulty suppressing both irrelevant and contradictory information.
机译：目的：这项研究调查了两种抑制机制-（a）对干扰干扰的抵抗力和（b）对有特定语言障碍（SLI）的学龄前儿童及其典型同伴的抑制作用。方法：22名SLI的学龄前儿童和22名通常发展为对照的儿童参加了这项研究。干扰分散干扰的任务涉及抑制分散的干扰（非言语听觉，语言和视觉干扰），这些干扰与任务目标无关。使用停止信号范式评估抑制作用，以评估抑制潜在的，冲突的反应的能力。结果：相对于典型的同龄人，SLI儿童表现出对干扰物干扰的抵抗力降低，无论干扰物的方式如何，抑制控制能力均较差。结论：这些结果确定了学龄前儿童SLI的抑制弱点。具体而言，患有这种疾病的儿童表现出难以抑制无关和矛盾信息的困难。

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