1. Some require fixation points to ensure they remain fixed in position. 2. The effect is enhanced the further the stimulus is away from the fixation point . 3. In spatial cueing tasks, subjects are instructed to fixate on a central fixation point . 4. The line of sight is a virtual line connecting the fixation point in the outside world. 5. With VRT therapy, the patient first focuses on a fixation point on a display screen. 6. The alcohol slows down the movement and processing of the brain, therefore causing more fixation points . 7. For example in the right eye a house is seen behind the fixation point through the window. 8. The observer is looking at a point, the fixation point , on the interior of the sphere. 9. Note that far disparities are smaller than near disparities for objects having the same distance from the fixation point . 10. Geometrically the horopter is a circle passing through the nodal point of the two eyes and through the fixation point .
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