title: Audiovisual congruency and incongruency effects on auditory intensity discrimination.
abstract: This study used a S1-S2 matching paradigm to investigate the influences of visual (size) change on auditory intensity discrimination. Behavioral results showed that subjects made more errors and spent more time to discriminate change in auditory intensity when it was accompanied by an incongruent visual change, while the performance for congruent audiovisual stimuli was better especially if there is a change in auditory stimuli. Event-related potential difference waves revealed that audiovisual interactions for multimodal mismatched information processing activated the right frontal and left centro-parietal cortices around 300-400 ms post S1-onset.
authors.affiliation: School of Biomedical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China.
authors.forename: Xiaoli
authors.initials: X
authors.lastname: Guo
authors.affiliation: School of Biomedical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China.
authors.forename: Xuan
authors.initials: X
authors.lastname: Li
authors.affiliation: School of Biomedical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China.
authors.forename: Xiaoli
authors.initials: X
authors.lastname: Ge
authors.affiliation: School of Biomedical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China; Med-X Research Institute, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China. Electronic address: stong@sjtu.edu.cn.
authors.forename: Shanbao
authors.initials: S
authors.lastname: Tong
mesh_terms: D000161:Acoustic Stimulation; D001307:Auditory Perception; D004192:Discrimination, Psychological; D005072:Evoked Potentials, Auditory; D005074:Evoked Potentials, Visual; D005260:Female; D006801:Humans; D008297:Male; D010775:Photic Stimulation; D014796:Visual Perception; D055815:Young Adult
keywords: Audiovisual interaction; Auditory intensity discrimination; Congruency and incongruency effects; ERP difference waves