Breathe-Easy EEG

Introduction

By measuring brain activity using electrodes and an amplifier circuit, electroencephalograms (EEGs) are at the intersection of electrical engineering and neuroscience. By using signal processing techniques, we can examine the effects of external stimulation, such as music and meditation, on brain waves. We primarily examined alpha and beta brain waves in our EEG. While alpha brainwaves are linked to meditation and relaxation, beta brainwaves are connected to being awake and using our brain for reasoning. In order to try and control an external event, in this case turning on a specific coloured LED based on our alpha and beta brain waves, we can then observe the resulting brain waves on a screen. The neurofeedback from the LEDs offers a way to self-regulate brain waves in this way, which can be helpful in applications like cognitive-behavioral therapy.

High Level Design

Rationale and Source of Our Project Idea

Since both of us were interested in neural feedback systems and projects with biological applications, we decided to work on this project. Charles Moyes and Mengxiang Jiang’s Brain-Computer Interface project from the spring of 2012, in which brain waves were utilised to control an EEG Pong game, served as our inspiration. We were interested in using our brain waves to visualise our mental state and in determining whether the biomedical applications of electrical and computer engineering could help us understand how our brains respond to stress and how to relax ourselves through breathing exercises. This project’s combination of analogue circuit design, signal processing, and software design made it technically intriguing to us as well.

About The Author

Muhammad Bilal

I am a highly skilled and motivated individual with a Master's degree in Computer Science. I have extensive experience in technical writing and a deep understanding of SEO practices.