Niemeyer W, Starlinger I
Audiology. 1981;20(6):510-5. doi: 10.3109/00206098109072719.
The same 18 normally hearing students and 18 matched normal-sighted students, as in part I of this study, were compared in regard to pure-tone integration, speech discrimination ability and late cortical-evoked potentials. The blind subjects showed increased disinhibition ('cleaning') with broad-band noise and a decreased inhibition with the same stimulus at the contralateral ear, better speech discrimination, especially with regard to sentence tests without and with competing environment-simulating noise, and, by electric response audiometry (ERA), a shortened N1 latency. Thus, the hypothesis of a better utilization of auditory information after the loss of the visual information channel could be confirmed, and may be ascribed to the plasticity of the central nervous system.
与本研究第一部分相同的18名听力正常的学生和18名匹配的视力正常的学生，在纯音整合、言语辨别能力和晚期皮质诱发电位方面进行了比较。盲人受试者在对侧耳对宽带噪声的去抑制作用（“清除”）增强，对相同刺激的抑制作用减弱，言语辨别能力更好，尤其是在无竞争环境模拟噪声和有竞争环境模拟噪声的句子测试中，并且通过电反应测听法（ERA），N1潜伏期缩短。因此，视觉信息通道丧失后听觉信息利用更好的假设得到了证实，这可能归因于中枢神经系统的可塑性。
