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Human brains integrate various kinds of information from different modalities to perceive our complex environment. The purpose of this study was to investigate the effect of attention on the processing of audiovisual temporal information. Fourteen subjects participated in our experiment. Visual, auditory and audiovisual information was presented by the display and speaker, and the volunteers were asked to judge the target stimuli. In present study, audiovisual stimuli onset asynchrony (SOA= ±250 ms, ±200 ms, ±150 ms, ±100 ms, ±50 ms, 0 ms). Volunteers completed two experiments: first, only the auditory stimulus was attended and determined the auditory target stimuli. Second, pay attention to the visual and auditory channel at the same time and judge the target stimuli. The results showed that no matter what kind of attention, multimodal audiovisual stimuli improved the judgment. Under the SOA=-50 and SOA=0 conditions, the effect of selective attention and divided attention was different, the promotion effect under the divided attention is stronger. Our results can be helpful for the information processing of artificial intelligence.

The Different Effects of Selective Attention and Divided Attention on Audiovisual Temporal Integration