Age-related oscillatory theta modulation of multisensory integration in frontocentral regions

作者：Yan, Tianyi; Bi, Xiaoshan; Zhang, Mengmeng; Wang, Wenhui; Yao, Zhiqi; Yang, Weiping; Wu, Jinglong^*

来源：NeuroReport, 2016, 27(11): 796-801.

DOI：10.1097/WNR.0000000000000609

• aging
• audiovisual integration
• theta oscillatory pattern
• wavelet analysis

This study used electroencephalogram measurements to investigate the effects of aging on oscillatory theta modulation during an audiovisual discrimination task. By a wavelet-based time-frequency analysis, age-related theta oscillation response differences were observed within a relatively restricted time range (0-500 ms) over frontal-central regions. Older adults showed stronger theta spectral power during visual and audiovisual stimuli in the left frontal regions; however, young adults showed stronger theta spectral power during auditory and audiovisual stimuli in the central regions. These findings suggest that multisensory oscillatory theta responses differ according to age, which further proves that the left frontal regions play an important role in audiovisual integration.

• 出版日期2016-8-3
• 单位北京理工大学; 中国人民大学