3/10/2023 0 Comments Light underhand throwIt may take a few trials for your brain to “unlearn” the adjustments it made and return to normal. When you remove the goggles, your brain remembers the prism distortion, and it functions as if the goggles were still in place. You begin to aim farther to the side and get closer to hitting the target. Your brain, however, soon adapts to the distortion produced by the goggles, and your visual and motor systems make adjustments. It follows the light back along a straight line defined by the ray of light that enters your eye, and so the target appears to be somewhere on this line.Īt first, your throws probably miss the target by a lot. Your eye-brain system tries to follow this light back to its origin in order to locate the target, but it doesn’t have the ability to recognize that the light was bent. Light travels from the target to your eye along the path shown by the arrows in the diagram below (click to enlarge).Īs light passes through the prism, it is bent twice-once when it enters the prism and again when it leaves. Because of the way it refracts, or bends, light, the prism makes objects in front of you appear to be to one side. When you first put on the goggles, the ball doesn’t go where your eye says it should. Your motor systems use all this information to produce movement, so you can throw the ball in the right direction. Your eyes and visual systems give your brain information about where things are, while your proprioceptive systems give your brain information about where your body is in space. When you throw a ball at a target, many different parts of your brain are working together.
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