This is an Atlas of MRI/PET brain scans. The outer cortex (grey) is neurons. It shows up dark in these scans The inner white part is axons connecting neurons to other neurons. The neurons are each like computers, linked to thousands of other computers through the Internet.
We watched a video of Schizophrenic patients in my Consciousness and Virtual Reality class. Schizophrenic thoughts seem to be all disconnected and rambling. The conversations I saw them have made no sense.