Noreña Arnaud Jean, Chery-Croze Sylviane
Laboratory of Integrative and Adaptative Neurobiology, University of Provence/St Charles, Pôle 3C, Marseille, France.
Neuroreport. 2007 Aug 6;18(12):1251-5. doi: 10.1097/WNR.0b013e3282202c35.
Loudness perception may be controlled by a central gain, possibly dependent on the mean level of the acoustic environment. Owing to hearing loss, for instance, a decrease in sensory inputs could increase this central gain and cause an auditory hypersensitivity or hyperacusis. According to this model, individuals with hyperacusis, provided with an enriched acoustic environment specifically designed to compensate for the decrease in sensory inputs, should show an improvement in their hyperacusis. This study showed that such an enriched acoustic environment indeed decreased auditory hypersensitivity: stimuli initially considered as being too loud became comfortable after a few weeks of acoustic stimulation. Therefore, this original approach could provide a solution to the problem of hyperacusis.
响度感知可能受中枢增益控制，这可能取决于声学环境的平均水平。例如，由于听力损失，感觉输入的减少可能会增加这种中枢增益，从而导致听觉过敏或恐音症。根据该模型，对于患有恐音症的个体，如果提供专门设计用于补偿感觉输入减少的丰富声学环境，他们的恐音症应该会有所改善。这项研究表明，这样丰富的声学环境确实降低了听觉过敏：最初被认为声音过大的刺激在经过几周的声学刺激后变得可以接受。因此，这种全新的方法可能为恐音症问题提供解决方案。
