BASIC AND APPLIED STUDIES OF TACTILE PERCEPTION

这项资助的延续将基础研究结合到 振动触觉刺激知觉与应用研究评价 听障人士言语交流的触觉辅助器 人。这项研究计划的目标是增加 了解触觉系统的处理能力和 为改进的触觉设计提供信息 爱滋病。触觉基础研究的结合点 心理物理学和知觉与触觉辅助的评价 应该会对模式有多复杂产生重要的见解 由触觉处理，以及这些图案应该是如何 为了获得最佳的语音识别效果，提出了一种语音识别算法。 在基本触觉知觉研究中，空间、 振动触觉刺激的时间和频率变化是 研究以确定它们对触觉加工的影响 刺激物。这些交互作用将在各种任务中进行检查 旨在涵盖从简单的刺激检测到 复杂模式识别。随着实验的进行， 刺激的复杂性逐渐增加，并使其 更接近于由表示的模式类型 多路触觉语音感知装置，使 实验操作可能与性能有关 这样的装置。 在语言交流触觉辅助工具的应用评估中， 进行了多项实验，以提供 融合信息，改进设备设计和培训 程序。触觉辅助对两种语言的贡献 将学习感知和语音产生技能，并 将检查长期使用触觉辅助器的效果。在……里面 此外，一系列实验系统地评估了 多通道触觉设备的特定物理参数(例如， 通道的数量、刺激器的位置和类型、处理 战略等)将采取行动以确定是否 目前利用这种设备获得的性能水平可以是 进一步完善。 这些不同研究方向的结果应该会提供一个 大大增加了我们对加工过程的了解 触觉系统的性能，以及这些功能的应用 感知通过触觉呈现的语音的能力 爱滋病。

The continuation of this grant combines basic research into the perception of vibrotactile stimuli with applied research evaluating tactile aids for speech communication by hearing-impaired persons. The goals of this program of research are to add to knowledge of the processing capabilities of the tactile system and to provide information leading to the design of improved tactile aids. The combination of basic investigation of tactile psychophysics and perception with the evaluation of tactile aids should yield important insights into how complex patterns are processed by the tactile sense and how such patterns should be presented to obtain optimal recognition of speech. In the basic tactile perception studies the interactions of spatial, temporal, and frequency variations in vibrotactile stimuli are studied to determine their effects on tactile processing of such stimuli. These interactions are examined in a variety of tasks designed to cover the range from simple detection of stimuli to complex pattern recognition. As the experiments progress, stimuli are gradually increased in complexity and made to approximate more closely the types of patterns presented by multichannel tactile speech perception devices, so that experimental manipulations can be related to the performance of such devices. In applied evaluations of tactile aids for speech communication, a number of lines of experimentation are pursued to provide convergent information for improving device design and training procedures. The contributions of tactile aids to both speech perception and speech production skills will be studied, and the effects of long-term use of tactile aids will be examined. In addition, a set of experiments that systematically evaluates specific physical parameters of multichannel tactile devices (e.g., number of channels, location and type of stimulators, processing strategies, etc.) will be undertaken to determine whether the levels of performance presently obtained with such devices can be further improved. The results of these varied lines of research should provide a considerable addition to our knowledge about the processing capabilities of the tactile system, and the application of these capabilities in the perception of speech presented through tactile aids.