New evidence confirms a long-held theory that people with schizophrenia hear ‘voices’ in their heads by misattributing inner speech as external. “This idea’s been around for 50 years, but it’s been very difficult to test because inner speech is inherently private,” says Thomas Whitford, a psychology researcher at the University of New South Wales. Using EEG (electroencephalography) to measure brainwaves, …
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