Pike Meghan, Biagio-de Jager Leigh, le Roux Talita, Hofmeyr Louis M
Department of Speech Language Pathology and Audiology, University of Pretoria, Pretoria, South Africa.
Front Neurol. 2020 Apr 28;11:305. doi: 10.3389/fneur.2020.00305. eCollection 2020.
Late latency auditory evoked potentials (LLAEPs) provide objective evidence of an individual's central auditory processing abilities. Electrically evoked cortical auditory evoked potentials (eCAEPs) are a type of LLAEP that provides an objective measure of aided speech perception and auditory processing abilities in cochlear implant (CI) recipients. To determine the short-term test-retest reliability of eCAEPs in adult CI recipients. An explorative, within-subject repeated measures research design was employed. The study sample included 12 post-lingually deafened, unilaterally implanted adult CI recipients with at least 9 months of CI experience. eCAEPs representing basal, medial and apical cochlear regions were recorded in the implanted ears of each participant. Measurements were repeated 7 days after the initial assessment. No significant differences between either median latencies or amplitudes at test and retest sessions ( > 0.05) were found when results for apical, medial and basal electrodes were averaged together. Mean intraclass correlation coefficient (ICC) scores averaged across basal, medial and apical cochlear stimulus regions indicated that both consistency and agreement were statistically significant and ranged from moderate to good (ICC = 0.58-0.86, < 0.05). ICC confidence intervals did demonstrate considerable individual variability in both latency and amplitudes. eCAEP latencies and amplitudes demonstrated moderate to good short-term test-retest reliability. However, confidence intervals indicated individual variability in measurement consistency which is likely linked to attention and listening effort required from the CI recipients.
晚期潜伏期听觉诱发电位（LLAEPs）为个体的中枢听觉处理能力提供了客观证据。电诱发皮层听觉诱发电位（eCAEPs）是LLAEPs的一种类型，它为人工耳蜗（CI）植入者的助听言语感知和听觉处理能力提供了一种客观测量方法。为了确定成人CI植入者中eCAEPs的短期重测信度。采用了探索性的、受试者内重复测量研究设计。研究样本包括12名语后聋、单侧植入的成年CI植入者，他们至少有9个月的CI使用经验。在每个参与者的植入耳中记录代表耳蜗基底、中部和顶部区域的eCAEPs。在初次评估7天后重复测量。当将顶部、中部和基底电极的结果平均在一起时，在测试和重测会话中的中位潜伏期或振幅之间未发现显著差异（>0.05）。跨耳蜗基底、中部和顶部刺激区域平均的平均组内相关系数（ICC）得分表明，一致性和一致性在统计学上均具有显著性，范围从中度到良好（ICC = 0.58 - 0.86，<0.05）。ICC置信区间确实显示出潜伏期和振幅方面存在相当大的个体差异。eCAEP潜伏期和振幅显示出中度到良好的短期重测信度。然而，置信区间表明测量一致性存在个体差异，这可能与CI植入者所需的注意力和聆听努力有关。
