Audiovisual congruency and incongruency effects on auditory intensity discrimination.
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.
['Guo|Xiaoli|X|', 'Li|Xuan|X|', 'Ge|Xiaoli|X|', 'Tong|Shanbao|S|']
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
Congruency and incongruency effects Auditory intensity discrimination Audiovisual interaction ERP difference waves