Brain Scans Show Decisions Before They Are Perceived to Happen

Wired brings you: Brain Scanners Can See Your Decisions Before You Make Them.

Know Your Level of Alertness

The activity happening within the brain is electrochemical by its nature. When this activity is measured, it can be broken down into five major frequency bands: delta, theta, alpha, beta and gamma. Roughly speaking, these bands correspond to certain biological states.
For example, delta waves are prominent in slow wave sleep (SWS, stage 4 of NREM). [...]

Consumer-Grade Brain-Computer Interfaces Are Here

Coming soon: cheap and productized consumer-grade brain-computer interfaces (BCI). These “everyman’s EEG devices” are primarily sold as game controllers, but surely they could also be made into a tool for research and experimentation at home.