Yin Zhongliang, Wang Yue, Yin Kuiying, Dong Minghao, Liang Jimin
Annu Int Conf IEEE Eng Med Biol Soc. 2019 Jul;2019:325-328. doi: 10.1109/EMBC.2019.8857035.
Specific neuronal oscillatory activity had been considered as the underling mechanism for face processing. However, few studies focused on the neuronal oscillatory coupling between neuronal assembles during face perception. In this study, we investigated the neuronal oscillatory coupling when human was in a face/non-face perceptual task. Nine normal individuals were included in the study, electroencephalogram (EEG) was recorded and the phase lagged index (PLI) was used to assess the neuronal oscillatory coupling. Compared with non-face stimuli, for face stimuli, enhanced neuronal oscillatory coupling was observed in theta (4-8 Hz) and alpha (8-12 Hz) band over the left frontal region, in gamma1 (30-49 Hz) band over the left posterior and occipito-temporal regions, and in gamma2 (51-75 Hz) over the right temporal region. The results suggested that more top-down control process and information integration were included during face perception than non-face perception.
特定的神经元振荡活动曾被认为是面部处理的潜在机制。然而，很少有研究关注面部感知过程中神经元集合之间的神经元振荡耦合。在本研究中，我们调查了人类在面部/非面部感知任务中的神经元振荡耦合情况。该研究纳入了9名正常个体，记录了脑电图（EEG），并使用相位滞后指数（PLI）来评估神经元振荡耦合。与非面部刺激相比，对于面部刺激，在左侧额叶区域的θ（4 - 8 Hz）和α（8 - 12 Hz）频段、左侧后部和枕颞区域的γ1（30 - 49 Hz）频段以及右侧颞区的γ2（51 - 75 Hz）频段观察到增强的神经元振荡耦合。结果表明，与非面部感知相比，面部感知过程中包含了更多的自上而下的控制过程和信息整合。
