Researchers develop device that can 'hear' your internal voice

New headset can listen to internal vocalisation and speak to the wearer while appearing silent to the outside world

Researchers have created a wearable device that can read people's minds when they use an internal voice, allowing them to control devices and ask queries without speaking.

The device, called AlterEgo, can transcribe words that wearers verbalise internally but do not say out loud, using electrodes attached to the skin.