Brainwaves

So when you’re alert, your brainwaves are naturally high frequency alpha brainwaves.

EEG recordings revealed that reindeer's brainwaves during rumination resemble the brain waves present during non-REM sleep, and these brainwave patterns suggest that the reindeer are more "rested" after ruminating.

He was listening to recordings of his own brainwaves for a research project while on a flight – and soon fell fast asleep.

It showed evidence from EEG (human electroencephalograph – which is the instrument used to measure brainwaves) readings that L-Theanine had a direct effect on the brain and relaxed the mind of study participants.

I’ve done quite a lot of research and tried some of the technology that’s out there—like using brainwaves or eye control—but all of it is still in prototype mode, and pretty unstable.

He finds that Al has come to his aid as a hologram that only Sam can see and hear, as it is tuned to his brainwaves.

The system uses a helmet covered with electroencephalography and near-infrared spectroscopy sensors that monitor electrical brainwaves and cerebral blood flow—signals that alter slightly during the human thought process.