What causes auditory hallucinations in the brain? For example, when you are sleep deprived, it is possible to hear things very clearly as if they were real. For example, voices of people talking, which some people with schizophrenia experience commonly in their daily lives. But of course there is no input from the ears. So what exactly is happening and how is that possible?
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It’s just your brain bypassing the necessity for input from your ears, and generating a “sound” that it perceives within itself. Essentially, you’re dreaming. Heck, auditory hallucination is how I know that I’m about to fall asleep. Once I start hearing things, I know I’ve got maybe 20 seconds before being out like a light. For me, it’s just precursory dreaming.
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