Brain Activity and Background Noise (IMAGE) University of Alberta Caption Joanna Scanlon (left) adjusts a wearable device on Kyle Mathewson's head (right), capable of making an electroencephalogram outside the lab -- in this case, while on a bicycle. Scanlon is lead author of a new study examining how background noise affects our brain activity. Credit John Ulan Usage Restrictions With credit to UAlberta and John Ulan. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.