Louisiana State University, Department of Communication Sciences and Disorders, 68 Hatcher Hall, Field House Drive, Baton Rouge, LA 70803, United States.
Louisiana State University, Department of Communication Sciences and Disorders, 68 Hatcher Hall, Field House Drive, Baton Rouge, LA 70803, United States.
J Commun Disord. 2020 Nov-Dec;88:106053. doi: 10.1016/j.jcomdis.2020.106053. Epub 2020 Sep 29.
A considerable amount of research has identified inhibition differences, including slower inhibition of manual responses, in people who stutter. Recent investigations have failed to link slowed motor inhibition with overt stuttering severity. This study investigated the potential relationship between slowed manual response inhibition and the negative impact of stuttering upon individual lives of adults who stutter (AWS).
Thirty-four adults (AWS, n = 17; AWNS, n = 17) matched by nonverbal IQ completed a manual stop-signal task and provided a conversational speech sample. Motor inhibition latency for AWS and AWNS were compared. For AWS, motor inhibition latency was compared to the four subsections of the Overall Assessment of the Speaker's Experience with Stuttering (OASES; Yaruss & Quesal, 2006; General Information, Reactions to Stuttering, Communication in Daily Situations, Quality of Life).
Similar to previous studies, AWS were significantly slower to inhibit inaccurate manual responses than AWNS. Quality of Life subtest of the OASES was found to significantly predict inhibition latency.
These data replicate findings that indicate that AWS exhibit slower manual inhibition latency, and suggest that these inhibition differences may be associated with an individual's negative experience with stuttering rather than stuttering severity.
大量研究已经确定了抑制差异，包括口吃者手动反应的抑制速度较慢。最近的调查未能将运动抑制速度较慢与明显的口吃严重程度联系起来。本研究调查了口吃者（AWS）的手动反应抑制速度较慢与口吃对个体生活的负面影响之间的潜在关系。
34 名成年人（AWS，n = 17；AWNS，n = 17）按非言语智商匹配，完成了手动停止信号任务，并提供了会话语音样本。比较了 AWS 和 AWNS 的运动抑制潜伏期。对于 AWS，将运动抑制潜伏期与口吃者体验总评估（OASES；Yaruss & Quesal，2006；一般信息、对口吃的反应、日常生活中的沟通、生活质量）的四个部分进行了比较。
与之前的研究相似，AWS 抑制不准确的手动反应明显较慢，而 AWNS 则较快。OASES 的生活质量子测试被发现显著预测抑制潜伏期。
这些数据复制了表明 AWS 表现出较慢的手动抑制潜伏期的发现，并表明这些抑制差异可能与个体对口吃的负面体验有关，而不是与口吃严重程度有关。
