CROSS-MODAL SENSORY PHYSIOLOGYAudiovisual interaction enhances auditory detection in late stage: an event-related potential studyLi, Qia c; Wu, Jinglonga; Touge, TetsuobAuthor Information aGraduate School of Natural Science and Technology, Okayama University, Okayama bSchool of Nursing, Kagawa University, Takamatsu, Japan cSchool of Computer Science and Technology, Changchun University of Science and Technology, Changchun, China Correspondence to Professor Jinglong Wu, PhD, Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan Tel: +81 86 251 8052; fax: +81 86 251 8266; e-mail: email@example.com Received 23 September 2009 accepted 20 October 2009 NeuroReport: February 17th, 2010 - Volume 21 - Issue 3 - p 173-178 doi: 10.1097/WNR.0b013e3283345f08 Buy SDC Metrics Abstract Although many behavioral studies have investigated auditory detection enhancement by crossmodal audiovisual interaction, the results are controversial. In addition, no neuroimaging studies that identify this phenomenon have been conducted. Therefore, we used event-related potential (ERP) measures to investigate this phenomenon by comparing the ERPs elicited by the audiovisual stimuli to the sum of the ERPs elicited by the visual and auditory stimuli, and identified two brain regions that showed significantly different responses: the centro-medial area at 280–300 ms after the presentation of the stimulus and the right fronto-temporal area at 300–320 ms after the presentation of the stimulus. The ERP results suggested that the behavioral enhancement of auditory detection results from late-stage cognitive processes rather than early-stage sensory processes. © 2010 Lippincott Williams & Wilkins, Inc.