Publication: Brain electric microstate and perception of simultaneously audiovisual presentation
Issued Date
2009-11-06
Resource Type
ISSN
16113349
03029743
03029743
Other identifier(s)
2-s2.0-70350591197
Rights
Mahidol University
Rights Holder(s)
SCOPUS
Bibliographic Citation
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). Vol.5768 LNCS, No.PART 1 (2009), 345-355
Suggested Citation
Wichian Sittiprapaporn, Jun Soo Kwon Brain electric microstate and perception of simultaneously audiovisual presentation. Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). Vol.5768 LNCS, No.PART 1 (2009), 345-355. doi:10.1007/978-3-642-04274-4_36 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/27489
Research Projects
Organizational Units
Authors
Journal Issue
Thesis
Title
Brain electric microstate and perception of simultaneously audiovisual presentation
Author(s)
Other Contributor(s)
Abstract
Associations between picture and sound form the basis of reading. Learning the correspondences between them is a crucial step in reading acquisition. This study was designed to investigate whether task-related processing of audio and visual features was independent or task-related processing in one modality might influence the processing of the other. The present study employed simultaneous audio-visual stimulus in the oddball paradigm to re-examine the effects of attention on audio, visual and audio-visual perception in the non-musician brain. Electroencephalographic (EEG) was recorded from 28 normal participants. None of them had more than three years of formal musical training and none had any musical training within the past five years. Chinese and Korean subjects were presented with tones (auditory: A), pictures (visual: V), and simultaneous tones and pictures (audio-visual: AV). The neural basis of this interaction was investigated by subtracting the event-related potentials (ERPs) to the A and the V stimuli alone from the ERP to the combined AV stimuli (i.e. interaction = AV - (A+V)). The Korean group showed larger mean interaction amplitude and longer in time than the Chinese group. This reveals that experience influences the early cortical automatic processing of linguistically relevant suprasegmental pitch contour. These results suggest that efficient processing of associations between pictures and sounds relies on neural mechanisms similar to those naturally evolved for integrating audiovisual perception. © 2009 Springer Berlin Heidelberg.