Discover how Electroencephalography (EEG) records brain activity to diagnose epilepsy, strokes, and sleep disorders. Learn ...

There's no shortage of apps and technology that claim to shift the brain into a "theta" state—said to help with relaxation, inward focus and sleep. But what exactly does it mean to change one's ...

This is the second of a two-part series on Hans Berger's discovery of EEG, and how it revolutionized psychological science. The first piece, on the historical context, can be found here. When EEG ...