Effects of audiovisual interaction by temporal gaps between visual and auditory stimuli in the human brain
This article aims to investigate effects of audiovisual interaction by temporal gaps between visual and auditory stimuli in the human brain.In this study,visual,auditory,and audiovisual stimuli with different temporal intervals between the visual and auditory stimuli were randomly presented to the left or right hemispace.During this time,participants were asked to respond promptly to target stimuli.We used cumulative distribution functions to analyze response times as a measure of audiovisual integration.Our results showed that audiovisual integration was significantly facilitated when the visual and auditory signals were presented simultaneously(p < 0.05).However,no audiovisual facilitation and also no audiovisual depression were found when the visual and auditory stimuli were presented at a 50 ms temporal interval.These findings indicated that there was no interaction exists when stimulus onset asynchronies were 50 ms.A novel finding was that significant audiovisual depressions were showed when the visual and auditory stimuli were presented at stimulus onset asynchronies(SOA = ±100,±150,±200,±250,±300,±400)conditions.Moreover,audiovisual depression effect was greater with becoming longer stimulus onset asynchronies.Our results confirmed that temporal gaps between visual and auditory stimuli could influence audiovisual interaction.
temporal gaps audiovisual interaction auditory stimuli visual stimuli
Weiping Yang Jiajia Yang Xiaoyu Tang Jinglong Wu
The Graduate School of Natural Science and Technology Okayama University 3-1-1 Tsushima-naka,Okayama,700-8530,Japan
国际会议
The 2014 ICME International Conference on Complex Medical Engineering (CME2014)ICME复合医学工程国际会议
台北
英文
185-190,98
2014-06-26（万方平台首次上网日期，不代表论文的发表时间）