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Gamma entrainment frequency affects mood, memory and cognition: an exploratory pilot study
Brain Informatics Pub Date : 2020-11-23 , DOI: 10.1186/s40708-020-00119-9
Ryan L S Sharpe 1 , Mufti Mahmud 1, 2 , M Shamim Kaiser 3 , Jianhui Chen 4, 5
Affiliation  

Here we provide evidence with an exploratory pilot study that through the use of a Gamma 40 Hz entrainment frequency, mood, memory and cognition can be improved with respect to a 9-participant cohort. Participants constituted towards three binaural entrainment frequency groups: the 40 Hz, 25 Hz and 100 Hz. Participants attended a total of eight entrainment frequency sessions twice over the duration of a 4-week period. Additionally, participants were assessed based on their cognitive abilities, mood as well as memory, where the cognitive and memory assessments occurred before and after a 5-min binaural beat stimulation. The mood assessment scores were collected from sessions 1, 4 and 8, respectively. With respect to the Gamma 40 Hz entrainment frequency population, we observed a mean improvement in cognitive scores, elevating from 75% average to 85% average upon conclusion of the experimentation at weak statistical significance ( $$\alpha$$ = 0.10, p = 0.076). Similarly, memory score improvements at a greater significance ( $$\alpha$$ = 0.05, p = 0.0027) were noted, elevating from an average of 87% to 95%. In pertinence to the mood scores, a negative correlation across all populations were noted, inferring an overall increase in mood due to lower scores correlating with elevated mood. Finally, correlation analysis revealed a stronger R $$^2$$ value (0.9838) within the 40 Hz group between sessions as well as mood score when compared across the entire frequency group cohort.

中文翻译:


伽马夹带频率影响情绪、记忆和认知:一项探索性试点研究



在这里,我们提供了一项探索性试点研究的证据,表明通过使用 Gamma 40 Hz 夹带频率,9 名参与者的情绪、记忆和认知可以得到改善。参与者分为三个双耳夹带频率组:40 Hz、25 Hz 和 100 Hz。参与者在 4 周的时间内总共参加了两次 8 次夹带频率课程。此外,还根据参与者的认知能力、情绪和记忆进行评估,其中认知和记忆评估在 5 分钟双耳节拍刺激之前和之后进行。情绪评估分数分别从第 1、4 和 8 节中收集。对于 Gamma 40 Hz 夹带频率群体,我们观察到认知得分平均有所改善,在实验结束时,认知得分从平均 75% 提高到平均 85%,统计显着性较弱 ( $$\alpha$$ = 0.10, p = 0.076)。同样,记忆力得分也有更显着的改善($$\alpha$$ = 0.05,p = 0.0027),从平均 87% 提高到 95%。与情绪分数相关,所有人群都发现负相关,推断由于分数较低与情绪升高相关,因此情绪总体上升。最后,相关性分析显示,与整个频率组队列相比,会话之间 40 Hz 组内的 R $$^2$$ 值 (0.9838) 以及情绪得分更强。
更新日期:2020-11-25
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