ADVANCED TACTILE DISPLAY FOR THE DEAF

这项工作的长期目的是开发一种改进的方法， 为深度失聪的人显示触觉信息。 问题 解决的是触觉感觉系统是否可以受益于编码 以类似于基底的方式呈现数据的方案， 膜操作比目前所做的。 虽然最先进的触觉 方法包括作为处理的一部分的信号的频谱分析， 实际上显示的是功率谱编码的包络 以固定频率，通常为100至250 Hz。 在这项研究中，我们希望 研究一种方法，其中有关信号的附加信息 频率内容被保留在触觉显示器中。 在我们最初的工作中， 我们将测试对低频信号的感知反应， 在触觉范围内的音调对。 将对答复进行比较 使用更传统的处理范例。 如果发现这 额外的信息似乎丰富感性经验，方法将 在工作的后期阶段进行检查，以确定整个演讲如何 频率范围可以被处理，以将其带入 触觉系统，同时仍然保留额外的数据。 在这个初始 工作，两个处理范式，保留所需的信息，每一个在 一个不同的格式，将被审查。

The long term purpose of this work is to develop an improved method of displaying tactile information for profoundly deaf individuals. The issue addressed is whether the tactile sensory system can benefit from encoding schemes that present data in a manner for analogous to the way the basilar membrane operates than is currently done. While the most advanced tactile methods include spectral analysis of the signals as part of the processing, what is displayed tactually is the envelope of the power spectrum encoded at a fixed frequency, typically 100 to 250 Hz. In this research we wish to study an approach in which additional information about the signal frequency content is retained in the tactile display. In our initial work we will test perceptual responses to signals consisting of low frequency tone pairs within the tactual range. Comparison will be made to responses using the more traditional processing paradigm. If it is found that this extra information appears to enrich perceptual experience, methods will be examined in the later stages of the work to determine how the entire speech frequency range can be processed to bring it into the bandwidth of the tactile system while still retaining the extra data. During this initial work, two processing paradigms that retain the desired information, each in a different format, will be examined.