Gamma entrainment frequency affects mood, memory and cognition: an exploratory pilot study

Sharpe, R.L.S., Mahmud, M. ORCID: 0000-0002-2037-8348, Kaiser, M.S. and Chen, J., 2020. Gamma entrainment frequency affects mood, memory and cognition: an exploratory pilot study. Brain Informatics, 7 (1): 17. ISSN 2198-4018

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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 (α = 0.10, p = 0.076). Similarly, memory score improvements at a greater significance (α = 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 R2 value (0.9838) within the 40 Hz group between sessions as well as mood score when compared across the entire frequency group cohort.

Item Type: Journal article
Publication Title: Brain Informatics
Creators: Sharpe, R.L.S., Mahmud, M., Kaiser, M.S. and Chen, J.
Publisher: Springer Science and Business Media LLC
Date: December 2020
Volume: 7
Number: 1
ISSN: 2198-4018
Rights: © The Author(s) 2020. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit
Divisions: Schools > School of Science and Technology
Record created by: Linda Sullivan
Date Added: 25 Nov 2020 08:34
Last Modified: 31 May 2021 15:13

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