Speech perception and cortical event related potentials in children with auditory neuropathy
Speech perception and cortical event related potentials in children with auditory neuropathy
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DOI：
10.1097/00003446-200206000-00008
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发表时间：
2002-06-01
期刊：
影响因子：
3.7
通讯作者：
Dowell, R
中科院分区：
文献类型：
--
作者：
Rance, G;Cone-Wesson, B;Dowell, R
目的：1)探讨听神经病(AN)儿童的独立言语感知能力和辅助言语感知能力，并与感音神经性聋儿童进行比较。2)探讨听神经炎儿童皮层事件相关电位(ERPs)是否可以被记录，以及这些反应的存在与言语知觉的关系。设计：对18例听神经炎儿童进行独立和辅助言语知觉评估(PBK单词)，并进行皮层事件相关电位测试。结果：15名能够完成PBK单词评估的儿童的言语知觉表现分为两个不同的类别。这些儿童要么没有开放的言语感知能力(7/15例)，要么表现出与感觉神经性同龄人相似的表现水平(8/15例)。大约50%的AN儿童的ERPs潜伏期、波幅和形态正常。在所有情况下，反应存在(在正常潜伏期)与合理的言语感知能力一致，而反应缺失与可忽略的言语感知一致。结论：在大约50%的听神经病儿童中，提供放大导致显著的开放式言语感知改善。这一结果证实了先前发表的报道，即不能从行为听力图可靠地估计患有AN的儿童的言语感知能力。强制性的事件相关电位测试结果可能为新诊断的青少年提供了一种预测知觉技能的手段，因为事件相关电位的存在(具有与年龄相适应的潜伏期和形态)与显着的开放式言语感知能力和放大效益相关。相反，事件相关电位的缺失表明严重的听力障碍，表现为严重的听力损失和/或极差的言语感知。
Objectives: 1) To investigate the unaided and aided speech perception abilities of children with auditory neuropathy (AN) and to compare their performance to children with sensorineural hearing loss. 2) To establish whether cortical event related potentials (ERPs) could be recorded in children with AN, and to determine the relationship between the presence of these responses and speech perception.Design: Unaided and aided speech perception assessments (PBK words), and cortical-ERP testing was carried out in a group of 18 children with AN. Data also were obtained from a cohort of age and hearing eve matched children with sensorineural hearing loss.Results: The speech perception performance of the 15 children with AN able to complete a PBK-word assessment, fell into two distinct categories. The children either showed no open-set speech perception ability (7/15 cases), or performance levels similar to their sensorineural counterparts (8/15 cases). Approximately 50% of children with AN showed ERPs of normal latency, amplitude and morphology. In all cases, response presence (at normal latencies) was consistent with reasonable speech perception ability, and response absence was consistent with negligible speech perception.Conclusions: In approximately 50% of children with auditory neuropathy, the provision of amplification results in significant open-set speech perception improvements. The results confirm the previously published reports that speech perception ability cannot be reliably estimated from the behavioral audiogram in children with AN. Obligatory ERP test results may offer a means of predicting perceptual skills in newly diagnosed youngsters as the presence of ERPs (with age-appropriate latency and morphology) was correlated with significant open set speech perception abilities and amplification benefit. The absence of the ERP in contrast, indicated profound hearing disability evidenced by profound hearing loss and/or extremely poor speech perception.