VISUAL STRATEGIES USED BY HEARING-IMPAIRED ADULTS

这项研究的长期目标是了解刺激因素 演讲稿阅读中的任务要求，这是人类信息的一种形式 正在处理。几乎所有的观察者，特别是有缺陷的人 听力，在困难的听力环境中依靠视觉信息。 本研究的具体目的是探讨视觉策略 由听力受损的成年人在朗读演讲时使用，并与这些相关 朗读演讲稿的表现水平。将使用眼睛监控技术 为了获得关于个人在尝试 演讲稿阅读，概念状态如何影响外观以及哪些视觉线索 在朗读演讲稿时使用。这一知识对于测试是至关重要的 演讲稿阅读中关于刺激和任务要求的假设。一个 对视觉策略的理解对 感官辅助器的设计与研究性干预的发展 增强语音阅读性能的协议。 将分析口聋成年人的眼神凝视模式 展示出色的朗读演讲稿和听障人士 在听力困难的情况下必须依靠朗读的个人 情况。眼睛凝视行为将被解释为 眼球运动的方向、持续时间和顺序 说话者的特定面部区域。眼睛凝视的模式将是 针对在演讲阅读方面存在差异的一组受试者进行评估 性能。另外的实验被设计成个体 受试者充当他们自己的控制和认知状态或身体 语音朗读信号的特性被操纵。可见 语音事件的空气动力学关联将与视觉关联 演讲稿阅读过程中的策略。这些初步调查的结果 研究将被用来开发关于以下方面的额外假设 知觉学习和康复策略适用于患有 听力障碍。

The long-term objective of this research is to understand the stimulus and task demands in speechreading, a form of human information processing. Virtually all observers, and especially people with impaired hearing, rely on visual information in difficult listening situations. The specific aim of this study is to investigate the visual strategies used by hearing-impaired adults during speechreading and relate these to speechreading performance levels. Eye monitoring techniques will be used to gain knowledge regarding where an individual looks when trying to speechread, how conceptual states influence looking and what visual cues are used during speechreading. This knowledge is critical to test hypotheses regarding the stimulus and task demands in speechreading. An understanding of visual strategies has important implications for the design of sensory aids and development of research-based intervention protocols to augment speechreading performance. Patterns of eye gaze will be analyzed for oral-deaf adults who demonstrate excellent speechreading performance and for hearing-impaired individuals who must rely on speechreading in difficult listening situations. Eye gaze behaviors will be interpreted with regard to direction, duration and sequence of eye movement associated with particular facial regions of a talker. Patterns of eye gaze will be evaluated for groups of subjects who vary with respect to speechreading performance. Additional experiments are designed in which individual subjects serve as their own controls and cognitive states or physical characteristics of the speechreading signal are manipulated. Visible aerodynamic correlates for speech events will be correlated with visual strategies during speechreading. The results of these preliminary studies will be used to develop additional hypotheses regarding perceptual learning and rehabilitation strategies for individuals with hearing-impairments.