people with schizophrenia which is thought to be  partially caused by chemical imbalances in the  

thalamus that's the part of your brain used to  coordinate different sections to work together  

to a schizophrenic these voices sound as real as  if someone was in the room talking to them and  

they usually comment on what the person is doing  or thinking oftentimes they're mean and negative  

it's not very pleasant brain malfunctions can  also cause you to see things that aren't there  

like faces with huge teeth and eyes if a certain  part of the fusiform gyrus is overactive epilepsy  

tumors or migraines can cause Alice in Wonderland  syndrome where people see the world around them as  

Tiny or gigantic migraines can also cause similar  hallucinations like floating Jagged patterns  

things are getting a little weird here