Between "looking" and unified perception lie processes that "see" with only one eye, either left or right, processes that "see" with either eye, and, most surprisingly, purely binocular processes that "see" with only two eyes at the same time, and in the latter case both eyes must look for the same incentive. If there were only a purely binocular mechanism in the visual system, we would not be able to see with one eye closed. For example, you wouldn't see anything in such a situation.: you look at the house from behind the tree so that one eye sees only the trunk, while the other looks into the distance.
The ability to perceive a purely binocular stimulus (such as the cyclopean stimulus that we used in experiments investigating the sensation of movement) does not mean that there is a purely binocular visual mechanism in the brain. It is possible that the cyclopean stimulus is "seen" by visual mechanisms that receive information from both eyes and from each eye individually. How, then, can we show that purely binocular processes really exist? Let's use the indirect method again. There is a known temporary distortion of what is seen, which is called the aftereffect of tilt.
Look at the pattern of the narrow stripes. The upper half of the pattern should appear to be collinear with the lower half. Now look at the pattern of sloping lines and move your eyes back and forth for one to two minutes along the horizontal black stripe that crosses the center of the pattern. Then quickly turn your gaze to the previous pattern. It will seem to you that its halves are not collinear, but tilted in the opposite direction of the slope on the current pattern.
This is the aftereffect of the tilt. It can be measured: to do this, the halves of the right pattern must be movable — then the observer will be able to bring them into such a position that they appear collinear to him. Before examining the left pattern, the subjects set the stripes exactly collinearly, and after that they certainly make mistakes by about 2°.
Suppose an observer looks at a pattern of sloping lines with only his right eye, and then adjusts the halves of the right pattern by looking at it with only his left eye. The left eye did not see any inclined lines, however, the aftereffect of the tilt is detected. The so-called interocular transfer occurs. Obviously, the mechanism under study is binocular, but not purely binocular. It begins to act when the right eye looks at sloping lines, as well as when the left eye is checked with a moving pattern. Apparently, the mechanism can respond to irritation of both the left and right eyes.
It turned out that the aftereffect of tilt is less pronounced when it is tested on an eye that has not been shown inclined lines than when it is tested on an eye that has seen this pattern. The effect is transferred only by 70-80%. Whether you are betting from India, Bangladesh, Egypt, Pakistan, you can use the melbet promo code today to enjoy a welcome offer of up to an equivalent of 20,000 INR for sports betting and a casino welcome bonus of up to 155,000 INR and 290 free spins. Tested & verified. New customers New customers 11 views this week CLAIM NOW Charles Taudin Charles Taudin Last updated: Today.
