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  2. Breaking community defends b-girl Raygun and is hopeful for ...

    www.aol.com/news/breaking-community-defends-b...

    The breaking community wants the world to give b-girl Raygun a break as the Paris Olympics wrapped up. The sport made its Olympic debut in Paris — it might never be back — and one of the ...

  3. Optokinetic response - Wikipedia

    en.wikipedia.org/wiki/Optokinetic_response

    The optokinetic reflex ( OKR ), also referred to as the optokinetic response, or optokinetic nystagmus (OKN), is a compensatory reflex that supports visual image stabilization. [ 1] The purpose of OKR is to prevent image blur on the retina that would otherwise occur when an animal moves its head or navigates through its environment.

  4. Non-rapid eye movement sleep - Wikipedia

    en.wikipedia.org/wiki/Non-rapid_eye_movement_sleep

    Non-rapid eye movement sleep. Non-rapid eye movement sleep ( NREM ), also known as quiescent sleep, is, collectively, sleep stages 1–3, previously known as stages 1–4. Rapid eye movement sleep (REM) is not included. There are distinct electroencephalographic and other characteristics seen in each stage. Unlike REM sleep, there is usually ...

  5. Wagon-wheel effect - Wikipedia

    en.wikipedia.org/wiki/Wagon-wheel_effect

    Video of a spinning, patterned paper disc. At a certain speed the sets of spokes appear to slow and rotate in opposite directions. The wagon-wheel effect (alternatively called stagecoach-wheel effect) is an optical illusion in which a spoked wheel appears to rotate differently from its true rotation. The wheel can appear to rotate more slowly ...

  6. Swiping through videos is likely making you even more bored ...

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    But that habit is likely making your problem even worse, according to new research. “Our research shows that while people fast-forward or skip videos to avoid boredom, this behavior actually ...

  7. Eye movement - Wikipedia

    en.wikipedia.org/wiki/Eye_movement

    Eye movements are used by a number of organisms (e.g. primates, rodents, flies, birds, fish, cats, crabs, octopus) to fixate, inspect and track visual objects of interests. A special type of eye movement, rapid eye movement, occurs during REM sleep . The eyes are the visual organs of the human body, and move using a system of six muscles.

  8. Saccade - Wikipedia

    en.wikipedia.org/wiki/Saccade

    The speed of movement during each saccade cannot be controlled; the eyes move as fast as they are able. [4] One reason for the saccadic movement of the human eye is that the central part of the retina —known as the fovea —which provides the high-resolution portion of vision is very small in humans, only about 1–2 degrees of vision, but it ...

  9. The dangers of LED face masks you should know about - AOL

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    Palep herself was quite concerned with the dosage of the light therapy provided by the masks, as not every patient may require the same amount and duration of the treatment. "The potential dangers ...