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Researchers Develop Device That Can 'Hear' Your Internal Voice (theguardian.com)
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. From a report: The device, called AlterEgo, can transcribe words that wearers verbalise internally but do not say out loud, using electrodes attached to the skin. "Our idea was: could we have a computing platform that's more internal, that melds human and machine in some ways and that feels like an internal extension of our own cognition?" said Arnav Kapur, who led the development of the system at MIT's Media Lab.
Kapur describes the headset as an "intelligence-augmentation" or IA device, and was presented at the Association for Computing Machinery's Intelligent User Interface conference in Tokyo. It is worn around the jaw and chin, clipped over the top of the ear to hold it in place. Four electrodes under the white plastic device make contact with the skin and pick up the subtle neuromuscular signals that are triggered when a person verbalises internally. When someone says words inside their head, artificial intelligence within the device can match particular signals to particular words, feeding them into a computer.
Kapur describes the headset as an "intelligence-augmentation" or IA device, and was presented at the Association for Computing Machinery's Intelligent User Interface conference in Tokyo. It is worn around the jaw and chin, clipped over the top of the ear to hold it in place. Four electrodes under the white plastic device make contact with the skin and pick up the subtle neuromuscular signals that are triggered when a person verbalises internally. When someone says words inside their head, artificial intelligence within the device can match particular signals to particular words, feeding them into a computer.
I have between 2 and 6 voices going on internally simultaneously, typically when I'm multitasking or mulling over a difficult problem, the voice keeps going on in the background (quite literally as if you're in a shared office) and occasionally interrupts the current primary conversation. I also have conversations with myself in my head and they have different voices.
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Robert J. Sawyer in his book Quantum Night mentioned this sort of idea.
He suggested that Philosophical Zombies would not have an inner voice, they in reality go through the motions of every day life without actually carrying on an inner monologue and they just fake it to fit in. He gives a lot of examples of strange human behaviour that are explained by the idea. For example mob mentality if many people are running a simple "just fit in" script in their brains instead of a real train of sapient thought.
No matter what, if this device really works, we are going to learn a lot more about human consciousness from it over the next decade.