Reading Comprehension (RC) | The human eye makes tiny, rapid, almost constant motions called

[align=justify][box_out][box_in] The human eye makes tiny, rapid, almost constant motions called microsaccades. Investigators have long been unsure what function, if any, microsaccades serve. Some have even gone so far as to suggest that microsaccades could impair vision by blurring it. But it is likely that microsaccades enable perception of stationary objects.

Visual systems have evolved to most readily detect moving objects, because motion may indicate that a predator is approaching or prey is escaping. So visual neurons respond to motion with electrochemical impulses. Unchanging objects less often pose a threat, so visual neurons do not respond as strongly to a static scene. Some animals, such as frogs, are completely unable to see stationary objects, but can easily see objects in motion. The reason humans see stationary objects better than do frogs may be that human eyes create their own motion, prompting visual neurons to keep firing.

In an experiment supporting this hypothesis, researchers
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Statistics : Posted by Bunuel • on 20 Sep 2023, 10:15 • Replies 0 • Views 25

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