Perception of motion and qEEG activity in human adults
Perception of motion and qEEG activity in human adults
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DOI：
10.1016/s0013-4694(98)00071-6
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发表时间：
1998-10-01
期刊：
影响因子：
--
通讯作者：
Martineau, J
中科院分区：
文献类型：
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作者：
Cochin, S;Barthelemy, C;Martineau, J
本研究旨在通过评估量化脑电图 (qEEG) 参数与视频电影投影的关联，将运动的视觉感知与皮质活动联系起来。根据国际 10-20 系统记录 14 个部位的脑电图，并使用共同的平均参考值。对 40 名惯用右手的志愿者（平均年龄 = 24 岁）进行了检查。该视频由 20 秒的序列组成，显示静态镜头和带有人体运动或物体运动的动态镜头。然后对脑电图进行频谱分析；计算 14 s 历元的 theta、alpha 和 beta 波段的光谱功率，并与视频电影的序列进行比较。所有分析均基于对数转换的绝对光谱功率值。每个频段的功率值均通过三向重复测量方差分析（半球 x 电极 x 序列）进行分析。结果通过脑电图制图表示。在感知人类运动序列期间，两个半球中央顶叶区域脑电图的α1、β1和β2功率值显着下降。这表明感觉运动皮层参与了人类运动的视觉观察。 (C) 1998 Elsevier Science Ireland Ltd. 保留所有权利。
This study was designed to relate visual perception of motion to cortical activity, by evaluation of the association of quantified electroencephalogram (qEEG) parameters with a video film projection. The EEG was recorded from 14 sites according to the International 10-20 system and a common average reference was used. Forty right-handed volunteers (mean age = 24 years) were examined. The video film consisted of 20 s sequences showing still shots and moving shots with human movements or object movements. The EEG was then subjected to spectral analysis; the spectral powers for the theta, alpha and beta bands were calculated for 14 s epochs and compared with sequences of the video film. All analyses were based on logarithmically transformed absolute spectral power values. The power values of each frequency band were analysed in a 3-way repeated measure ANOVA (Hemisphere x Electrode x Sequence). The results were represented by EEG cartography. Significant decreases in the alpha 1, beta 1 and beta 2 power values of EEG in centro-parietal regions of both hemispheres were shown during perception of human motion sequences. This suggests participation of the sensorimotor cortex during visual observation of human motion. (C) 1998 Elsevier Science Ireland Ltd. All rights reserved.