Youtor
Refixation Saccade
>> YOUR LINK HERE: ___ http://youtube.com/watch?v=EJb0aicfQZ0
Hi, I'm Dr. Jared Nielsen. I'd like to talk to you about brain and brain recovery. When we look at the brain and we're focusing on our brains ability to be able to perceive and heal, we often use a test called an optokinetic strip or refixation saccade. • What we mean by this is actually the eye's ability to find a point, hold that point, and follow it through a field of view. Let me describe it this way, a region in our brain called the frontal lobe actually finds a target and then pulls that target across our field of view. The point across is by the parietal lobe of the brain. • A target where our eyes will look to the target and then pursue across is called a refixation saccade. That marries the hemisphere on the same side of the brain. We can actually look to the target frontal lobe, pursue that target across our field of view, parietal lobe and then find the refixation again. That's the refixation saccade. • We'll demonstrate this today and show the application of it when we're trying to assist someone in recovering the brain. The reason that I'd like to discuss this is, so often we see people with iPads, or some type of a mobile device, where they're following through, or looking through either an application, or an app, or they're actually looking for photos, or something where they continually sweep one direction. • If there's been a brain injury, or a disconnect in the brain on one side or the other, that constant flipping or following motion may actually create a disparity in the brain. We have horizontal refixation saccades, and we also have vertical refixation saccades... • http://thenielsenclinic.com/videos/re...
#############################
