Yes. So when we are looking to record good information and good data as far as those tracings, we need make sure we get good pupil detection. So if we look over at the computer, we see we have to get our information setup so we can record those eye movements, and when we were looking through here, we're trying to record that darkest part of our eye, that pupil. So we're going to want to try to center our cross hairs the best that we can. So that as that chair starts to move and we see that nystagmus that we're actually recording those eye movements. So we'll do just a quick demonstration of ideal, 100 percent perfect conditions what we're looking for. So I'm just going to sit in the chair, and so we want the participant to be looking straight ahead and not having something to fixate or focus on, and that way we should see those nice rightward and leftward generated nystagmus as the chair rotates and moves. So as we're moving that inner ear fluid, that endolymph, back and forth, it's sending a signal to that sensory receptor called the cupula in order to say here's how fast my head is moving or my body is moving in space, and it's trying to just keep everything focused forward. If I had to really try to focus on the wall or a very specific spot, we can suppress or reduce those eye movements. So as we come back around I can do that. That's amazing. So I really focus on sight here the whole time then even as I come backwards, then those should be greatly diminished. Yeah. Then they pick back up. Motion. Interesting. It almost looks like the video is looping. I could try it because I'm really sleep deprived. It would still do it. The other thing that we can do just to demonstrate is that what's call the step test. So I'm just going to pull up another test here. What we would do that rotation that we just did at few different speeds, the next one we're going to do is called the step test. So it's going to have an initial buildup of speed, a very quick movement. So there will be a lot of eye movements that stay around for, hopefully, more than six seconds in my scenario, then it'll stop again. Yeah, just go ahead. So as we do this, like I said, it's looking at the velocity storage mechanism in the inner ear, and there should be a little bit of a delay before those responses become reduced again and like I said we're looking for good eye movements for more than six seconds before they decrease 37 percent. That's the number that they had decided to come up with in all those research studies, and then in a few seconds here the chair's going to come to an abrupt stop and even though I'm not moving, those eye movements are going to change direction to the other. Should be moving to the right at the moment, once the chair stops they should change to the left. We wanted to see the same thing, to actually have pretty good responses for more than six seconds, and then they'll start to dive back off as that fluid goes back to its baseline and stable. Like I said, it's what's called the VOR, the vestibulo ocular reflex and that's essentially trying to keep those eyes and vision stabilized whenever our head and body is in rotation. So when you're looking over to change lanes in a car, when you're looking across the street so as far as looking left versus right, to make sure that things are nice and stable versus maybe seeing double vision or blurred vision. So it's everyday real-world scenario that why we measure this. Patients where it's fairly diminished might have difficulty reading, they might have difficulty trying to focusing in school for young adults and young patients. They may also, like I said, if there an infant, if this is greatly diminished or they were born with no inner ear responses, or they've had some type of disorder or disease that's caused the lack or loss of those responses, then we may not see any of those eye movements whatsoever. They may be delayed walkers, delayed crawlers, they might just be globally delayed overall in general too.