Pfingst Bryan E, Xu Li, Thompson Catherine S
Department of Otolaryngology, Kresge Hearing Research Institute, University of Michigan Health System, Ann Arbor, MI 48109, USA.
Audiol Neurootol. 2004 Nov-Dec;9(6):341-52. doi: 10.1159/000081283. Epub 2004 Oct 1.
Functional implications of across-site variation in detection thresholds in subjects with cochlear implants were evaluated by comparing thresholds to speech recognition performance. Detection thresholds for bipolar (BP) and monopolar (MP) stimulation of all available stimulation sites were assessed in 21 subjects with Nucleus CI24M and CI24R(CS) implants. We found significant negative correlations between speech recognition and within-subject across-site threshold variance for both BP and MP stimulation, but no significant correlation of speech recognition with mean threshold levels. These results suggest that across-site variance of detection thresholds could provide a useful early indication of the prognosis for speech recognition and might serve as an indicator for specific therapeutic approaches in individual subjects.
通过比较阈值与言语识别性能，评估了人工耳蜗植入受试者检测阈值的跨部位差异的功能影响。对21名植入Nucleus CI24M和CI24R(CS)人工耳蜗的受试者，评估了所有可用刺激部位的双极（BP）和单极（MP）刺激的检测阈值。我们发现，对于BP和MP刺激，言语识别与受试者内跨部位阈值方差之间存在显著的负相关，但言语识别与平均阈值水平之间无显著相关性。这些结果表明，检测阈值的跨部位差异可为言语识别预后提供有用的早期指标，并可能作为个体受试者特定治疗方法的指标。
