Effect of gap detection threshold on consistency of speech in children with speech sound disorder

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• 作者：Fateme Sayyahi^a ; Zahra Soleymani^a ; ^{Soleymaniz@sina.tums.ac.ir} ; Mohammad Akbari^a ; Mahmood Bijankhan^b ; Behrooz Dolatshahi^c
• 关键词：Speech sound disorder ; Consistency of speech ; Gap detection threshold
• 刊名：Research in Developmental Disabilities
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：61
• 期：Complete
• 页码：151-157
• 全文大小：534 K
• 卷排序：61

文摘

The present study examined the relationship between gap detection threshold and speech error consistency in children with speech sound disorder.Methods and proceduresThe participants were children five to six years of age who were categorized into three groups of typical speech, consistent speech disorder (CSD) and inconsistent speech disorder (ISD).The phonetic gap detection threshold test was used for this study, which is a valid test comprised six syllables with inter-stimulus intervals between 20–300 ms. The participants were asked to listen to the recorded stimuli three times and indicate whether they heard one or two sounds.Outcomes and resultsThere was no significant difference between the typical and CSD groups (p = 0.55), but there were significant differences in performance between the ISD and CSD groups and the ISD and typical groups (p = 0.00). The ISD group discriminated between speech sounds at a higher threshold.Conclusions and implicationsChildren with inconsistent speech errors could not distinguish speech sounds during time-limited phonetic discrimination. It is suggested that inconsistency in speech is a representation of inconsistency in auditory perception, which causes by high gap detection threshold.