Filippini R, Befi-Lopes D M, Schochat E
Department of Physiotherapy, Speech-Language and Hearing Sciences and Occupational Therapy, School of Medicine, University of Sao Paulo, Brazil.
Folia Phoniatr Logop. 2012;64(5):217-26. doi: 10.1159/000342139. Epub 2012 Sep 22.
This study verified the efficacy of a formal auditory training (AT) program in children with hearing and language disorders using the auditory brainstem response to complex sounds (c-ABR) with and without background noise.
Thirty children (7-13 years) were distributed into four groups: typical development (TD: n = 7), auditory processing disorder (APD: n = 9) and specific language disorder (SLIa: n = 6, and SLIb: n = 8). All children underwent behavioral assessment of auditory processing and c-ABR with and without background noise. The APD and SLIa groups underwent 8 weeks of formal AT, but all children were reevaluated 12 weeks after the initial assessment.
The TD group presented better behavioral performance than the other groups. For c-ABR in silence, no significant differences were observed among groups or assessments, except regarding VA complex measures, which were altered in the APD group. For c-ABR with background noise, however, the APD, SLIa and SLIb groups presented delayed latencies. Groups that underwent formal AT improved behavioral performance and decreased latencies to c-ABR in background noise at final assessment.
These data suggest that efficacy of formal AT can be demonstrated by c-ABR with background noise.
本研究使用对复杂声音的听性脑干反应（c-ABR），在有和没有背景噪声的情况下，验证了正式听觉训练（AT）计划对有听力和语言障碍儿童的疗效。
30名儿童（7 - 13岁）被分为四组：正常发育组（TD：n = 7）、听觉处理障碍组（APD：n = 9）、特定语言障碍a组（SLIa：n = 6）和特定语言障碍b组（SLIb：n = 8）。所有儿童均接受了有无背景噪声情况下的听觉处理行为评估和c-ABR检查。APD组和SLIa组接受了为期8周的正式AT训练，但所有儿童在初次评估后12周均接受了重新评估。
TD组的行为表现优于其他组。对于安静环境下的c-ABR，除了APD组中VA复合测量值发生改变外，各组之间以及各评估之间均未观察到显著差异。然而，对于有背景噪声情况下的c-ABR，APD组、SLIa组和SLIb组的潜伏期延迟。接受正式AT训练的组在最终评估时改善了行为表现，并缩短了有背景噪声情况下c-ABR的潜伏期。
这些数据表明，有背景噪声情况下的c-ABR可以证明正式AT训练的疗效。
