期刊
NEUROREPORT
卷 22, 期 14, 页码 684-688出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/WNR.0b013e32834a2724
关键词
audiovisual integration; multisensory perception; speech perception; temporal order judgment; temporal recalibration
资金
- Ministry of Education, Culture, Sports, Science and Technology, Japan [19001004]
- MIC, Japan [102103011]
- Grants-in-Aid for Scientific Research [22830104, 19001004] Funding Source: KAKEN
Recent studies have shown that audiovisual synchrony is recalibrated after exposure to asynchronous auditory and visual signals. This temporal recalibration has been shown only under a dual-task situation for speech signals. Here we examined whether the temporal recalibration occurs for audiovisual speech in a single-task situation using an offline adaptation method. In the experiment, participants were exposed to synchronous or asynchronous audiovisual syllables (either congruent or incongruent) for 3 min. The adaptation phase was followed by test trials, in which participants judged whether the auditory or visual stimulus was presented first. Results showed shifts in the point of subjective simultaneity and the sensitivity. Our results suggest that attention to adaptation stimuli is necessary to induce temporal recalibration for speech. NeuroReport 22:684-688 (C) 2011 Wolters Kluwer Health | Lippincott Williams & Wilkins.
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