Our visual perception is based on sensory input and our prior knowledge about the world. A new study suggests that hallucinations arise in people whose brains rely more heavily on what they already know than new sensory input.
Imagine a future where a zap to the brain ensures that you won’t forget a thing. Research shows that electrical stimulation can improve our ability to memorize, and while current focus is solely medicinal, how long can we resist mass insta-neuroboosts for all?
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