Age and Temporal Processing of Audiovisual Speech

描述（由申请人提供）：本研究将探讨时间加工在老年人和年轻人的视听语音整合中的作用。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。如果言语的时变方面对多模态整合是显著的，那么相对于年轻人，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和模态的时间一致性对检测视听语音的重要性。本研究对多模态感知、言语时间加工、感觉和认知随年龄的变化以及跨生命周期的交流具有启示意义。

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.