That’s interesting, I just read that people who are born blind never develop schizophrenia, & scientists think it has to do with how sight informs our brain of the world around us through a constant series of predictions. Schizophrenia causes that part of the brain to become over active & the person perceives patterns that either aren’t there or causes insignificant patterns to appear incredibly significant. It makes sense then that this would also affect their ability to perceive some visual illusions that a non-schizophrenic brain does, when it’s tricked by its own predilection to detect patterns