Department of Otolaryngology - Head and Neck Surgery, University of Kentucky, Lexington, Kentucky.
Department of Neurology, University of Kentucky, Lexington, Kentucky.
J Am Acad Audiol. 2021 Jan;32(1):45-53. doi: 10.1055/s-0040-1719095. Epub 2021 Mar 4.
Dichotic listening occurs when one attends to different acoustical messages presented simultaneously to both ears. This is important for understanding speech in compromised listening situations, such as background noise. Deficits in dichotic listening can be remediated by participating in auditory training. We present two patients with binaural integration deficits who underwent dichotic interaural intensity difference (DIID) training.
The purpose of this investigation is to demonstrate improvement of dichotic listening deficits following DIID training in neurological patients seen clinically for hearing issues.
This was a case series utilizing a pre- and posttreatment design.
This case series utilized two female participants who demonstrated binaural integration deficits during an auditory processing evaluation.
The participants underwent a pretraining auditory processing evaluation and functional magnetic resonance imaging (fMRI). Participants then underwent 12, 30-minute DIID training sessions followed by posttreatment auditory processing evaluations and fMRI.
Data was collected at the pretreatment appointment and then immediately following the completion of the training.
Each patient demonstrated varying degrees of improvement on the posttreatment assessment. Case 1 showed significant improvement on the Speech-in-Noise-Revised (SPIN-R) test. fMRI showed changes in activation patterns following training. Case 2 demonstrated improved scores on the Dichotic Digits Test and SPIN-R and increased activation of the calcarine sulcus following training.
Dichotic training can be an efficacious treatment for binaural integration deficits and may show evidence of improving speech understanding in noise. This case series demonstrates a promising therapy to help patients improve auditory function by improving dichotic listening skills.
当一个人同时关注双耳接收到的不同声学信息时，就会发生双耳分听现象。这对于理解听力受损情况下的言语理解非常重要，例如在背景噪声中。通过参与听觉训练，可以纠正双耳整合缺陷。我们介绍了两位接受双耳分听强度差（DIID）训练的双耳整合缺陷患者。
本研究旨在证明双耳分听训练可以改善临床听力问题患者的双耳分听缺陷。
这是一项采用治疗前后设计的病例系列研究。
本病例系列研究纳入了两名在听觉处理评估中表现出双耳整合缺陷的女性参与者。
参与者接受了预治疗听觉处理评估和功能磁共振成像（fMRI）。然后，参与者进行了 12 次、每次 30 分钟的 DIID 训练，随后进行了治疗后听觉处理评估和 fMRI。
数据在治疗前评估时收集，然后在完成训练后立即收集。
每位患者在治疗后评估中都表现出不同程度的改善。病例 1 在语音噪声修订版（SPIN-R）测试中表现出显著改善。fMRI 显示训练后激活模式发生变化。病例 2 在双耳分听数字测试和 SPIN-R 中表现出改善的分数，以及训练后距状沟的激活增加。
双耳分听训练可能是治疗双耳整合缺陷的有效方法，并可能显示出改善噪声中言语理解的证据。本病例系列研究表明，通过提高双耳分听技能，这是一种有前途的治疗方法，可以帮助患者改善听觉功能。
