Do a little excercise.

Imagine a big wheel, like you’d see in an old fashioned mill, or one of those giant wheels that propel river boats. Picture it from the side.

Now, imagine the wheel gradually speeding up, until it’s going fairly quickly.

Now imagine that wheel slowly and gradually stopping, and reversing direction - don’t replace the image with another wheel which is going the other way, but make sure the image you have already does that.

Easy to do? I would imagine so.

But I have extreme difficulty doing it. I spent 10 minutes last night trying to do that, and gave myself a nasty headache in the process because I was focusing so hard. It wasn’t that I couldn’t picture another wheel going the other way, but I couldn’t make the current one stop. Whenever I tried, as silly as it sounds, the “torque” of the wheel in the visualization would go up, and it would overpower my attempts to slow it down.

So, I can’t even control the visualizations in my own head, without extreme difficulty. Is there a name for this? Is it indicative of some other psychology condition, like OCD perhaps?