Here's a synopsis of the things I've probably already said:
You can stimulate your tailbone to wag by wobbling your knee slightly for a second, stop it abruptly, and then watch for your tail to start wagging.
A wagging tail used to lead me down schizophrenic rabbit holes because it would make me dizzy while sitting still and I would associate it with voices.
Other wobbling, dizzy type visual hallucinations can come from: the center of the forehead, inner ear on either side, the vision of either eye, your musculoskeletal system, breathing.
Nervous gestures like crinkling a piece of paper in your pocket or twitching, movements that aren't accomplishing anything, those made while waiting, one makes these gestures in response to the tailbone and stifling its wobbling effects.
A natural tailbone wag occurs when you release adrenaline. Your size and any animals size controls how and when you get excited. Adrenaline can be a happy excitement or a fight or flight response. Adrenaline flight response is anxiety.
If you think of the brain as a computer, and it comes with programs that run themselves, voices a schizophrenic hears could be a 'program' that when active rattles the balance system and a schizoid 'hears' voices. The balance system probably does the hearing of voices because deaf people still get schizophrenia and the balance system has been proven to mediate sound. Also the balance system, a gyroscope, and a fan are all the same spinning or vibrating in place, and when you turn a fan on your much more apt to hearing voices.
One useful trick to observe control over dizzy visual hallucinations is: stare at something for a good couple seconds, then turn your attention in your vision to something in your peripherals, after a second it may begin to wobble. You can move the wobbling around between objects by changing your minds attention to different objects in your vision.