![]() ![]() The emotional results suggested that these changes were consistent with the induced neural oscillations.īeta oscillation Binaural beat Emotion Gamma oscillation Memory.Ĭopyright © 2017 Elsevier B.V. Brunel Mood Scale, a questionnaire to evaluate emotional states, revealed changes in emotional states after listening to the stimulus. The results showed that, after listening, the recalled words were increase in the working memory portion of the list. In the second experiment, word list recall task was conducted before and after listening to the stimulus for 20min. The results suggested that frontal, temporal, and central regions were activated within 15min. In the first experiment, electroencephalograms were recorded while participants listened to the stimulus for 30min. Two experiments were developed based on the study aims. This study aimed to investigate the neural oscillation responding to the 40-Hz binaural beat and to evaluate working memory function and emotional states after listening to that stimulus. The stimulus used in this study was 40-Hz binaural beat because binaural beat induces frequency following response. Therefore, modulation of the brain activity can lead to manipulation of cognitive functions. ![]() This 10 Hz frequency influences your brainwaves and sees them mimic the 10 Hz frequency of the binaural beat. So, for instance, if you were listening to an audio track with two tones of 490 Hz and 500 Hz, the binaural beat that you would hear would be 10 Hz. Gamma oscillation also associates with cognitive functions, memory and emotion. The binaural beat’s frequency is the difference between the initial two tones. Beta oscillation is also involved in interpreting received stimulus and occurs following gamma oscillation, and this process is known as gamma-to-beta transition, a process for neglecting unnecessary stimuli in surrounding environment. Gamma oscillation plays a role in binding process or sensory integration, a process by which several brain areas beside primary cortex are activated for higher perception of the received stimulus.
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