BASIC AND APPLIED STUDIES OF TACTILE PERCEPTION

触觉感知的基础和应用研究

• 批准号: 2125412
• 负责人: JANET M WEISENBERGER
• 金额: $ 16.04万
• 依托单位: OHIO STATE UNIVERSITY
• 依托单位国家: 美国
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-02-01 至 1998-03-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/2125412
• 关键词: attention; auditory discrimination; auditory stimulus; behavior test; communication disorder aid; deaf aid; form /pattern perception; hearing disorders; human subject; neural information processing; perceptual maskings; performance; psychoacoustics; sequential perception; sound frequency; speech recognition; touch

Studies of the potential of tactile aids to provide speech information to hearing-impaired persons have to date focused primarily on whether these devices do indeed produce measurable speech perception benefits, and on the relative benefits provided by different kinds of tactile aids. Such studies, while important, do not address more fundamental questions regarding the specific aspects of the stimulus that influence the identifiability of speech sounds presented via tactile aids. Investigations of tactile processing capabilities for stimuli like those presented via tactile aids are necessary for determining stimulus aspects that lead to greater identifiability. A tighter coupling of basic processing considerations to tactile aid applications has promise for advancing our understanding of both areas. The primary area investigated in the present proposal involves the stimulus aspects that determine the identifiability of speech stimuli presented via tactile displays. Series of experiments examine variations in stimulus location, direction and extent of stimulus movement, perceived intensity, and temporal cues, both separately and in combination, to determine their relative salience in discriminability of stimuli presented via tactile aids. Models that quantify the contribution of each stimulus dimension will be constructed and evaluated. A different set of experiments approaches the same issue by correlating physical outputs of the tactile display with perceptual confusions for the same stimuli, to investigate physical aspects of tactile speech stimuli that contribute to identifiability. Finally, issues of device specificity are addressed by comparing performance for different tactile arrays on subsets of the tasks described above. Overall, the results of the proposed experiments should enhance. our understanding of tactile processing of complex stimuli, such as those presented via tactile speech aids, and should also provide guidance for improving designs for displaying speech information via tactile aids.

触觉辅助工具为儿童提供语言信息的潜力研究 听力受损者迄今为止主要关注的是， 设备确实产生了可测量的语音感知益处， 不同种类的触觉辅助工具所提供的相对益处。等 研究虽然重要，但并没有解决更根本的问题 关于刺激的具体方面， 通过触觉辅助呈现的语音的可识别性。 对触觉处理能力的研究， 通过触觉辅助工具呈现的是确定刺激方面所必需的 从而提高识别率。更紧密地耦合基本 对触觉辅助应用的处理考虑有希望 增进我们对这两个领域的了解。 本建议调查的主要领域涉及 确定语音刺激可识别性的刺激方面 通过触觉显示器呈现。一系列的实验检验了 在刺激位置、刺激运动的方向和程度、感知 强度和时间线索，无论是单独还是组合， 确定它们在呈现的刺激的可辨别性中的相对显著性 通过触觉辅助。量化每个刺激因素贡献的模型 将构建和评估维度。一组不同的 实验通过关联物理输出来解决同样的问题， 触觉显示器对于相同的刺激具有感知混乱， 研究触觉言语刺激的物理方面， 可识别性最后，器械特异性问题通过以下方式解决： 比较不同触觉阵列在任务子集上的性能 上面描述总的来说，拟议实验的结果应 增强。我们对复杂刺激的触觉处理的理解， 与通过触觉言语辅助装置呈现的内容一样，并且还应提供 用于改进通过显示器显示语音信息的设计的指南 触觉辅助。