Audiovisual integration elicited by stimuli peripherally in divided attention task: An event-related potential study

Weiping Yang, Xuexiang Bao, Jingjing Yang, Takahiro Kimura, Jinglong Wu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

To investigate the neural mechanisms of audiovisual integration in divided attention, we recorded event-related potentials (ERPs) during a divided attention task, in which the stimulus was presented in the auditory (A), visual (V), and in the audiovisual (AV) modalities. ERPs were recorded in normal young subjects, and ERPs elicited by the auditory and visual stimuli when presented alone were summed ('sum' ERP) and compared to the ERP elicited when they were presented simultaneously ('simultaneous' ERP). Two tones (20% white noise and 80% frequent 1000 Hz) and two visual stimuli (20% red white block and 80% black white block) were delivered. Behavioral data and ERPs of AV and (A + V) were analyzed according to different location. Reaction times (RTs) to the stimuli when presented simultaneously were significantly faster than when they were presented alone. Audiovisual integration elicited by stimuli peripherally, which was followed by three more phases of effects that were marked by scalp distribution: (1) the right fronto-central area at 200-220ms after the presentation of the stimulus, (2) centro-medial area at 260-320ms after the presentation of the stimulus, and (3) right posterior area at 340-440ms. We found that these interaction effects occurred slightly later than those reported in previously published AV interaction studies in which AV stimuli were presented centrally.

Original languageEnglish
Title of host publication2011 IEEE/ICME International Conference on Complex Medical Engineering, CME 2011
Pages237-242
Number of pages6
DOIs
Publication statusPublished - Jul 11 2011
Event2011 5th IEEE/ICME International Conference on Complex Medical Engineering, CME 2011 - Harbin, China
Duration: May 22 2011May 25 2011

Publication series

Name2011 IEEE/ICME International Conference on Complex Medical Engineering, CME 2011

Other

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

Keywords

  • Audiovisual integration
  • ERPs
  • divided attention

ASJC Scopus subject areas

  • Biomedical Engineering

Fingerprint Dive into the research topics of 'Audiovisual integration elicited by stimuli peripherally in divided attention task: An event-related potential study'. Together they form a unique fingerprint.

  • Cite this

    Yang, W., Bao, X., Yang, J., Kimura, T., & Wu, J. (2011). Audiovisual integration elicited by stimuli peripherally in divided attention task: An event-related potential study. In 2011 IEEE/ICME International Conference on Complex Medical Engineering, CME 2011 (pp. 237-242). [5876741] (2011 IEEE/ICME International Conference on Complex Medical Engineering, CME 2011). https://doi.org/10.1109/ICCME.2011.5876741