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首页> 外文期刊>Clinical EEG and neuroscience: official journal of the EEG and Clinical Neuroscience Society (ENCS) >Neural Processing of Musical and Vocal Emotions Through Cochlear Implants Simulation
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Neural Processing of Musical and Vocal Emotions Through Cochlear Implants Simulation

机译：通过耳蜗植入仿真的音乐和声乐情绪的神经处理

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摘要

Cochlear implants (CIs) partially restore the sense of hearing in the deaf. However, the ability to recognize emotions in speech and music is reduced due to the implant's electrical signal limitations and the patient's altered neural pathways. Electrophysiological correlations of these limitations are not yet well established. Here we aimed to characterize the effect of CIs on auditory emotion processing and, for the first time, directly compare vocal and musical emotion processing through a CI-simulator. We recorded 16 normal hearing participants' electroencephalographic activity while listening to vocal and musical emotional bursts in their original form and in a degraded (CI-simulated) condition. We found prolonged P50 latency and reduced N100-P200 complex amplitude in the CI-simulated condition. This points to a limitation in encoding sound signals processed through CI simulation. When comparing the processing of vocal and musical bursts, we found a delay in latency with the musical bursts compared to the vocal bursts in both conditions (original and CI-simulated). This suggests that despite the cochlear implants' limitations, the auditory cortex can distinguish between vocal and musical stimuli. In addition, it adds to the literature supporting the complexity of musical emotion. Replicating this study with actual CI users might lead to characterizing emotional processing in CI users and could ultimately help develop optimal rehabilitation programs or device processing strategies to improve CI users' quality of life.
机译：耳蜗植入物（CIS）部分恢复聋人的听觉感。然而，由于植入物的电信号限制和患者改变的神经途径，因此减少了识别语音和音乐中情绪的能力。这些限制的电生理相关性尚未确定。在这里，我们旨在表征CIS对听觉情绪处理的影响，并首次通过CI-Simulator进行比较声和音乐情绪处理。我们录制了16个正常听力参与者的脑电图活动，同时以原始形式和降级（CI-模拟）条件的声音和音乐情绪爆发。我们在CI-仿真条件下发现了长期的P50延迟和降低的N100-P200复振幅。这指出通过CI仿真处理的声音信号的限制。在比较声乐和音乐突发的处理时，我们发现与音乐突发相比，与两个条件（原始和CI-模拟）的声乐突发相比，与音乐突发的延迟延迟。这表明，尽管有耳蜗植入物的局限性，听觉皮质可以区分声音和音乐刺激。此外，它还增加了支持音乐情绪的复杂性的文献。用实际的CI用户复制这项研究可能会导致CI用户的情绪处理，最终有助于开发最佳的康复计划或设备处理策略，以提高CI用户的生活质量。

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