Restoring Brain Rhythm May Combat Depression.

Restoring gamma signals in the olfactory bulb can counter depression, according to a study by researchers from NYU Grossman School of Medicine and University of Szeged in Hungary. Gamma oscillation changes have been found to be an electrophysiological marker of depression in brain regions that manage the sense of smell, which have also been linked to emotions. The researchers used a device to restore gamma signals of the brain at their natural pace, which was able to reduce depressive behaviors by 40%. However, further studies are needed to understand the link between firing patterns of gamma waves and emotions.