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The Analysis of Electroencephalography Changes Before and After a Single Neurofeedback Alpha/Theta Training Session in University Students.
Applied Psychophysiology and Biofeedback ( IF 2.2 ) Pub Date : 2019-03-22 , DOI: 10.1007/s10484-019-09432-4
Young-Ji Lee 1 , Hye-Geum Kim 2 , Eun-Jin Cheon 2 , Kiseong Kim 3 , Joong-Hyeon Choi 4 , Ji-Yean Kim 5 , Jin-Mi Kim 6 , Bon-Hoon Koo 2
Affiliation  

The underlying mechanisms of alpha/theta neurofeedback training have not been fully determined. Therefore, this study aimed to test the changes in the brain state feedback during the alpha/theta training. Twenty-seven healthy participants were trained during a single session of the alpha/theta protocol, and the resting quantitative electroencephalography (QEEG) was assessed before and after training. QEEG was recorded at eight scalp locations (F3, F4, C3, C4, T3, T4, O1, and O2), and the absolute power, relative power, ratio of sensory-motor rhythm beta (SMR) to theta (RST), ratio of SMR-mid beta to theta (RSMT), ratio of mid beta to theta (RMT), ratio of alpha to high beta (RAHB), and scaling exponent of detrended fluctuation analysis by each band were measured. The results indicated a significant increase of absolute alpha power, especially the slow alpha band, at all electrodes except T3 and T4. Moreover, the relative alpha power, especially the slow alpha band, showed a significant increase at all electrodes. The relative theta power showed a significant decrease at all electrodes, except T3. A significant decrease in relative beta power, relative lower beta power and relative mid beta power was observed at O1. RST (at C4, O1, and O2), RSMT and RMT (at F4, C4, O1 and O2), and RAHB (at all electrodes) showed significant increase. Scaling exponents at all electrodes except T3 showed a significant decrease. These findings indicate that a one-time session of alpha/theta training might have the possibility to enhance both vigilance and concentration, thus stabilizing the overall brain function.

中文翻译:

大学生单次神经反馈α/θ训练前后脑电图变化的分析。

α/θ神经反馈训练的潜在机制尚未完全确定。因此,本研究旨在测试alpha /θ训练过程中大脑状态反馈的变化。在一次alpha / theta方案中对27名健康参与者进行了培训,并且在培训前后评估了静息定量脑电图(QEEG)。在8个头皮位置(F3,F4,C3,C4,T3,T4,O1和O2)记录QEEG,并记录绝对功率,相对功率,感觉运动节奏β(SMR)与theta的比率(RST),测量了SMR-mid beta与theta的比率(RSMT),beta beta与theta的比率(RMT),alpha与high beta的比率(RAHB)以及每个波段的去趋势波动分析的定标指数。结果表明绝对α功率显着提高,尤其是除T3和T4以外的所有电极上的慢α波段。而且,相对α功率,特别是慢α带,在所有电极上都显示出明显的增加。相对θ功率在除T3外的所有电极上均显着降低。在O1处观察到相对beta功率,相对较低的beta功率和相对中等的beta功率显着下降。RST(在C4,O1和O2处),RSMT和RMT(在F4,C4,O1和O2处)和RAHB(在所有电极处)均显示出显着增加。除T3外,所有电极的比例指数均显着降低。这些发现表明,一次性进行一次α/θ训练可能会提高警惕性和注意力,从而稳定整体脑部功能。相对阿尔法功率,尤其是慢速阿尔法谱带,在所有电极上均显示出显着增加。相对θ功率在除T3外的所有电极上均显着降低。在O1处观察到相对beta功率,相对较低的beta功率和相对中等的beta功率显着下降。RST(在C4,O1和O2处),RSMT和RMT(在F4,C4,O1和O2处)和RAHB(在所有电极处)均显示出显着增加。除T3以外,所有电极的比例指数均显着降低。这些发现表明,一次性进行一次α/θ训练可能会提高警惕性和注意力,从而稳定整体脑部功能。相对阿尔法功率,尤其是慢速阿尔法谱带,在所有电极上均显示出明显的增加。相对θ功率在除T3外的所有电极上均显着降低。在O1处观察到相对beta功率,相对较低的beta功率和相对中等的beta功率显着下降。RST(在C4,O1和O2处),RSMT和RMT(在F4,C4,O1和O2处)和RAHB(在所有电极处)均显示出显着增加。除T3以外,所有电极的比例指数均显着降低。这些发现表明,一次性进行一次α/θ训练可能会提高警惕性和注意力,从而稳定整体脑部功能。除了T3。在O1处观察到相对beta功率,相对较低的beta功率和相对中等的beta功率显着降低。RST(在C4,O1和O2处),RSMT和RMT(在F4,C4,O1和O2处)和RAHB(在所有电极处)均显示出显着增加。除T3以外,所有电极的比例指数均显着降低。这些发现表明,一次性进行一次α/θ训练可能会增强警惕性和注意力,从而稳定整体脑部功能。除了T3。在O1处观察到相对beta功率,相对较低的beta功率和相对中等的beta功率显着下降。RST(在C4,O1和O2处),RSMT和RMT(在F4,C4,O1和O2处)和RAHB(在所有电极处)均显示出显着增加。除T3以外,所有电极的比例指数均显着降低。这些发现表明,一次性进行一次α/θ训练可能会提高警惕性和注意力,从而稳定整体脑部功能。
更新日期:2019-03-22
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