Task-irrelevant auditory stimuli affect audiovisual integration in a visual attention task: Evidence from event-related potentials

Jingjing Yang, Qi Li, Yulin Gao, Jinglong Wu

研究成果

2 被引用数 (Scopus)

抄録

Integration of information from multiple senses is fundamental to perception and cognition, but the neural activity of multimodal audiovisual integration remains unclear. This study used event-related potentials (ERPs) to demonstrate that onset synchronous task-irrelevant auditory stimuli affect the audiovisual integration. The behavioral results showed that the responses to audiovisual target stimuli were faster than that to unimodal visual target stimuli. Moreover, the ERPs were recorded in response to unimodal auditory (A), unimodal visual (V) and bimodal (AV) stimuli. Cross-modal interactions were estimated using the additive [AV - (A + V)] model. Four ERP components related to audiovisual integration were observed: (1) over central and occipital areas at around100 to 160ms; (2) over the central and occipital areas at around 160 to 200ms; (3) over the occipital areas at around 200 to 240ms. (4) over frontal-central areas at around 280 to 320ms. These findings confirmed the main neural activity of audiovisual integration. In addition, our study provided evidence that multimodal integration can be generated even if the auditory stimulus was task- irrelevant.

本文言語English
ホスト出版物のタイトル2011 IEEE/ICME International Conference on Complex Medical Engineering, CME 2011
ページ248-253
ページ数6
DOI
出版ステータスPublished - 2011
イベント2011 5th IEEE/ICME International Conference on Complex Medical Engineering, CME 2011 - Harbin
継続期間: 5月 22 20115月 25 2011

出版物シリーズ

名前2011 IEEE/ICME International Conference on Complex Medical Engineering, CME 2011

Other

Other2011 5th IEEE/ICME International Conference on Complex Medical Engineering, CME 2011
国/地域China
CityHarbin
Period5/22/115/25/11

ASJC Scopus subject areas

  • 生体医工学

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