Within- and across-frequency temporal processing and speech perception in cochlear implant users.
Within- and across-frequency temporal processing and speech perception in cochlear implant users.
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DOI：
10.1371/journal.pone.0275772
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发表时间：
2022
期刊：
影响因子：
3.7
通讯作者：
中科院分区：
文献类型：
--
作者：
耳蜗植入受者的言语知觉表现是高度可变的，并且受时间加工能力的影响。时间处理通常使用行为任务进行评估，该任务要求参与者检测具有相同频率（频率内间隙检测）或不同频率（跨频率间隙检测）的前间隙和后间隙刺激的沉默间隙。本研究的目的是评估行为和电生理措施内和跨频率的时间处理及其与语音感知性能CI用户的相关性。参与者包括11名成年CI使用者（n = 15耳;平均年龄= 50.2岁）和11名年龄和性别匹配的正常听力（NH）个体（n = 15耳;平均年龄= 49.0岁）。言语感知通过辅音-核心-辅音单词识别（CNC）、亚利桑那生物医学句子识别（AzBio）和Bamford-Kowal-Bench噪声中言语测试（BKB-SIN）进行评估。内和跨频率的行为间隙检测阈值（称为GDTwithin和GDTacross）测量使用自适应，两个选择，强制选择程序。皮层听觉诱发电位（CAEP）引起的四个间隙持续时间条件下（无间隙，GDT，阈下GDT，阈上GDT）的频率间隙内和跨刺激。研究了言语知觉、GDT和CAEP之间的相关性。CI使用者的言语感知得分低于NH使用者（p < 0.05），但两组之间的GDT没有差异（p > 0.05）。与NH同龄人相比，CI使用者在跨频率间隙刺激诱发的CAEP中表现出N1潜伏期增加（p < 0.05）。频率内间隙诱发的CAEP无组间差异（p > 0.05）。三个CI耳朵显示最长的GDT内也表现出最差的性能在噪声中的讲话。频率内CAEP的幅值随着间隙时间的增加而增加，而跨频率CAEP的幅值在所有间隙时间内都表现出相似的变化。在阈上GDT条件下，言语得分和频率内CAEP测量之间存在显著相关性，言语表现较差的CI用户具有较小的N1-P2振幅和较长的N1潜伏期。GDTacross、言语感知和跨频率CAEP测量之间没有相关性。频率内和跨频率间隙检测可能涉及不同的神经机制。频率内间隙检测任务可以帮助识别语音性能差的CI用户进行康复。频率内CAEP比跨频率CAEP更能预测言语感知性能。
Cochlear implant (CI) recipient’s speech perception performance is highly variable and is influenced by temporal processing abilities. Temporal processing is commonly assessed using a behavioral task that requires the participant to detect a silent gap with the pre- and post-gap stimuli of the same frequency (within-frequency gap detection) or of different frequencies (across-frequency gap detection). The purpose of the study was to evaluate behavioral and electrophysiological measures of within- and across-frequency temporal processing and their correlations with speech perception performance in CI users. Participants included 11 post-lingually deafened adult CI users (n = 15 ears; Mean Age = 50.2 yrs) and 11 age- and gender-matched normal hearing (NH) individuals (n = 15 ears; Mean Age = 49.0 yrs). Speech perception was assessed with Consonant-Nucleus-Consonant Word Recognition (CNC), Arizona Biomedical Sentence Recognition (AzBio), and Bamford-Kowal-Bench Speech-in-Noise Test (BKB-SIN) tests. Within- and across-frequency behavioral gap detection thresholds (referred to as the GDTwithin and GDTacross) were measured using an adaptive, two-alternative, forced-choice procedure. Cortical auditory evoked potentials (CAEPs) were elicited using within- and across-frequency gap stimuli under four gap duration conditions (no gap, GDT, sub-threshold GDT, and supra-threshold GDT). Correlations among speech perception, GDTs, and CAEPs were examined. CI users had poorer speech perception scores compared to NH listeners (p < 0.05), but the GDTs were not different between groups (p > 0.05). Compared to NH peers, CI users showed increased N1 latency in the CAEPs evoked by the across-frequency gap stimuli (p < 0.05). No group difference was observed for the CAEPs evoked by the within-frequency gap (p > 0.05). Three CI ears showing the longest GDTwithin also showed the poorest performance in speech in noise. The within-frequency CAEP increased in amplitude with the increase of gap duration; while the across-frequency CAEP displayed a similar amplitude for all gap durations. There was a significant correlation between speech scores and within-frequency CAEP measures for the supra-threshold GDT condition, with CI users with poorer speech performance having a smaller N1-P2 amplitude and longer N1 latency. No correlations were found among GDTacross, speech perception, and across-frequency CAEP measures. Within- and across-frequency gap detection may involve different neural mechanisms. The within-frequency gap detection task can help identify CI users with poor speech performance for rehabilitation. The within-frequency CAEP is a better predictor for speech perception performance than the across-frequency CAEP.
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影响因子：
1.2
作者：
Alhaidary, Abdulsalam;Tanniru, Kishore
通讯作者：
Tanniru, Kishore
影响因子：
3.7
作者：
Donaldson, Gail S.;Chisolm, Theresa H.;Krause, Jean C.
通讯作者：
Krause, Jean C.
影响因子：
2.4
作者：
Grose, John H.;Buss, Emily
通讯作者：
Buss, Emily
影响因子：
3.7
作者：
Harris KC;Wilson S;Eckert MA;Dubno JR
通讯作者：
Dubno JR
DOI：
10.1007/s10162-015-0507-y
发表时间：
2015-04-01
影响因子：
2.4
作者：
Bierer, Julie Arenberg;Deeks, John M.;Carlyon, Robert P.
通讯作者：
Carlyon, Robert P.