中华耳科学杂志2016，Vol.14Issue(1)：53-56,4.DOI:10.3969/j.issn.1672-2922.2016.01.011
相关视觉刺激抑制听觉相关电位研究
Related visual stimuli inhibit auditory processing:evidence from event-related potentials
摘要
Abstract
Objective This study is to investigate the interaction in visual and auditory cortical process-ing, through audiovisual stimulus ERP combined with topomapping and source analysis. Methods Nineteen normal young volunteers were recruited, aged from 22-30 years. All the subjects undertook audiovisual (vow-el [a] vs. vowel [i]), as well as visual and auditory ERP tests. ERP waves under different stimuli were com-pared. Results Audiovisual stimuli evoked visual N1 and N2, and also a positive wave at about 600 ms. Visu-al stimulus evoked ERPs were consistent with the visual part of responses to auditory visual stimuli. Howev-er, P1 amplitude evoked by audiovisual stimuli was lower than that evoked by auditory stimuli alone (p=0.04), and topomapping showed that its distribution was close to the visual cortex. Conclusions Related visu-al stimuli appear to inhibit auditory responses, and cause the auditory response active areas to shift toward the visual response area. The results suggest that in the process of hearing rehabilitation training, avoiding visual stimuli (lip reading) may improve outcomes, although further research is very much needed.关键词
视听联合刺激/事件相关电位/皮层可塑性Key words
audiovisual combined stimulus/event related potential/cortical plasticity分类
医药卫生引用本文复制引用
刘佳浩,李小兰,黄茵莉,梁茂金,张雪媛,蔡跃新,陈玲,郑亿庆,杨海弟,陈穗俊,张志钢..相关视觉刺激抑制听觉相关电位研究[J].中华耳科学杂志,2016,14(1):53-56,4.基金项目
国家自然科学基金资助项目 （）
