Age and Temporal Processing of Audiovisual Speech

描述(申请人提供)：这项拟议的研究将考察时间加工在老年人和年轻人视听语言整合中的作用。随着年龄的增长，感觉和认知的变化可能会降低老年人的时间处理能力。如果语音的时变方面对多模式整合是突出的，那么相对于年轻人来说，老年人在协调感觉间信息方面应该受到损害。实验将测试感知速度的重要性和检测视听语音的模式的时间一致性。这项研究对多通道知觉、语音的时间加工、感觉和认知随年龄的变化以及一生中的交流具有一定的意义。

DESCRIPTION (provided by applicant): The proposed research will examine the role of temporal processing in audiovisual speech integration for older and younger adults. Sensory and cognitive changes with age may degrade temporal processing in older adults. If time varying aspects of speech are salient to multimodal integration, then older adults should be impaired relative to younger adults for the coordination of intersensory information. Experiments will test the importance of perceptual speed and the temporal congruity of the modalities for detection of audiovisual speech. This research has implications for multimodal perception, temporal processing of speech, sensory and cognitive changes with age and communication across lifespan.