Researchers were able to listen the brain’s auditory activity

February 14, 2012

By measuring the electrical signals in the region of the brain that processes speech scientists were able to decode the words a subject was hearing. This research helps to understand how the brain sorts out sounds and turns them into language and it can be used to help restore communication in severely disabled people.

The research applies only to the actual sound a listener hears so you don’t have to be scared (yet) that people will know what you’re thinking, because whether the same regions of the brain are involved in the words we sub-vocalize is still unclear.

You can read about the whole experience here