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“Reality” is constructed by your brain. Here’s what that means, and why it matters.

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  “It’s really important to understand we’re not seeing reality,” says neuroscientist Patrick Cavanagh. “We’re seeing a story that’s being created for us.”   | Photo Illustration by Zac Freeland/Vox; Akiyoshi Kitaoka

Your brain hallucinates your conscious reality

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  The concept that the brain hallucinates reality is a fascinating topic in neuroscience and cognitive science.   Neuroscientist Anil Seth has discussed this idea, suggesting that our brains are involved in a continuous process of hypothesis and prediction, essentially generating our conscious experiences as a form of “controlled hallucination.” According to Seth, what we perceive as reality is a construct of the brain, combining sensory information with past experiences and expectations to create our individual experiences of the world This theory posits that our brains use sensory data from the environment and compare it with internal predictions. When the predictions match the sensory input, we perceive this as reality. However, when there’s a mismatch, it can result in what we call hallucinations.  This process is happening all the time, and it’s how the brain interprets and understands the world around us . The concept that the brain hallucinates reality, while popul...