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首页> 外文会议>International Conference on Brain-Computer Interface >Sex differences observed in a study of EEG of linguistic activity and resting-state: Exploring optimal EEG channel configurations
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Sex differences observed in a study of EEG of linguistic activity and resting-state: Exploring optimal EEG channel configurations

机译：在语言活动和静息状态的脑电图研究中观察到的性别差异：探索最佳的脑电通道配置

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This study reports the differences observed in the EEG signals of linguistic activity and resting-state between male and female subjects in a population of 16 individuals (8 females and 8 males). These differences were spotted while performing two experiments: sex identification and subject identification, where the initial aim was to identify the optimal number and placement of EEG channels to obtain high accuracies in sex and subject identification. The results of the identification show that the signals analyzed contain sex-specific information and that the best features from this sex-specific information are extracted from different EEG channel locations and from different hemispheres of the brain, for either sex. The effect of the number of electrodes and electrode localization is seen with clear differences between male and female subjects. The accuracy loss for sex identification when reducing the number of channels from 14 to 1 was of only 0.03 points during resting states (Accuracies from 0.79 to 0.76). For subject identification within either male or female groups during resting states, the accuracy loss was larger when reducing the number of channels from 14 to 1 (0.96 to 0.71 for female, 0.96 to 0.81 for male subjects). One finding of this study is that Theta and Gamma bands are strongest for males in the right hemisphere during resting states, whereas during linguistic activity these bands exhibit similar strengths in the left hemisphere for both males and females. Similar specific features in brain signals may enable the design of a flexible EEG device that can be adapted to specific mental tasks and Subject settings.
机译：这项研究报告了在16个人（8位女性和8位男性）的人口中，男性和女性受试者在语言活动和静息状态的EEG信号中观察到的差异。在进行两个实验时发现了这些差异：性别鉴定和受试者鉴定，最初的目的是确定最佳的EEG通道数量和位置，以在性别和受试者鉴定中获得较高的准确性。鉴定结果表明，所分析的信号包含特定性别的信息，并且针对每种性别，分别从不同的EEG通道位置和大脑的半球提取该特定性别信息的最佳特征。可以看到电极数量和电极位置的影响，男性和女性受试者之间存在明显差异。在静止状态下，将通道数从14减少到1时，性别识别的准确性损失仅为0.03点（准确性从0.79减少至0.76）。对于静止状态下男性或女性组中的受试者识别，将通道数从14减少至1时，精度损失会更大（女性为0.96至0.71，男性为0.96至0.81）。这项研究的一个发现是，在休息状态下，右半球的男性中Theta和Gamma谱带最强，而在语言活动期间，无论男性还是女性，这些谱带在左半球中都表现出相似的强度。脑信号中类似的特定功能可以实现灵活的EEG设备的设计，该设备可以适应特定的心理任务和受试者设置。

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