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Related Experiment Video

Updated: Jan 6, 2026

Reducing State Anxiety Using Working Memory Maintenance

Reducing State Anxiety Using Working Memory Maintenance

Published on: July 19, 2017

Alpha and Beta Powers in EEG: How Audio-Visual Stimulation Influences Anxiety.

İnan Özdemir¹, Emine Elif Tülay², Serkan Aksu³

¹Department of Neurology, Faculty of Medicine, Muğla Sıtkı Koçman University, Merkez, 48000, Muğla, Turkey. drinanozdemir@gmail.com.

Applied Psychophysiology and Biofeedback

|October 21, 2025

Summary

Audio-visual stimulation (AVS) effectively reduced alpha and beta brainwave power, significantly lowering anxiety levels in participants. This non-pharmacological method shows promise for anxiety symptom relief.

Keywords:

Alpha wave Anxiety Audio-visual stimulation Beta wave Power spectrum

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Area of Science:

Neuroscience
Psychology

Background:

Anxiety disorders represent a significant global health burden.
Non-pharmacological interventions are increasingly sought for anxiety management.

Purpose of the Study:

To investigate the efficacy of audio-visual stimulation (AVS) in reducing alpha and beta brainwave power.
To evaluate the clinical impact of AVS on anxiety levels using the State-Trait Anxiety Inventory (STAI).

Main Methods:

Thirty participants underwent AVS, with 12 in a control group receiving audio-visual white noise.
Electroencephalography (EEG) data were collected pre-, during-, and post-stimulation.
Fast Fourier Transform (FFT) analysis quantified brainwave power; STAI assessed anxiety.

Main Results:

AVS significantly decreased alpha and beta brainwave power during stimulation (p < 0.05).
A statistically significant reduction in self-reported anxiety was observed in the AVS group (p < 0.001).
No significant anxiety reduction was noted in the control group.

Conclusions:

AVS demonstrates neurophysiological effects by reducing specific brainwave frequencies.
AVS provides clinical evidence for anxiety symptom alleviation.
This study supports AVS as a viable non-pharmacological treatment for anxiety.