enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Impossible color - Wikipedia

    en.wikipedia.org/wiki/Impossible_color

    Shades of Grey – 2009 novel by Jasper Fforde, a novel where social class is determined by the specific colors that one can see; Spectral color – Color evoked by a single wavelength of light in the visible spectrum; Tetrachromacy – Type of color vision with four types of cone cells, having four primary colors

  3. Achromatopsia - Wikipedia

    en.wikipedia.org/wiki/Achromatopsia

    Some colors can be estimated through the use of colored filters. By comparing the luminosity of a color with and without a filter (or between two different filters), the color can be estimated. This is the premise of monocular lenses and the SeeKey. In some US states, achromats can use a red filter while driving to determine the color of a ...

  4. Agnosia - Wikipedia

    en.wikipedia.org/wiki/Agnosia

    A difficulty in perceiving colors in which the world may appear drab or in shades of gray. Cerebral achromatopsia is caused by neurological damage. [10] [11] There are two regions of the brain which specialize for color recognition, areas V4 and V8.

  5. Color blindness - Wikipedia

    en.wikipedia.org/wiki/Color_blindness

    Tritans see short-wavelength colors (blue, indigo and spectral violet) as greenish and drastically dimmed, some of these colors even as black. Yellow and orange are indistinguishable from white and pink respectively, and purple colors are perceived as various shades of red. Unlike protans and deutans, the mutation for this color blindness is ...

  6. Visual agnosia - Wikipedia

    en.wikipedia.org/wiki/Visual_agnosia

    If a person is unable to recognize objects because they cannot perceive correct forms of the objects, although their knowledge of the objects is intact (i.e. they do not have anomia), they have apperceptive agnosia. If a person correctly perceives the forms and has knowledge of the objects, but cannot identify the objects, they have associative ...

  7. Doctors Say This Nighttime Behavior Can Be A Sign Of Dementia

    www.aol.com/doctors-nighttime-behavior-sign...

    See all deals. In Other News. Entertainment. Entertainment. The Today Show. Dick Van Dyke, 99, proves he doesn't skip leg day in new video. Entertainment. People

  8. Checker shadow illusion - Wikipedia

    en.wikipedia.org/wiki/Checker_shadow_illusion

    The regions marked A and B are the same shade of gray. A region of the same shade has been drawn connecting A and B. The checker shadow illusion is an optical illusion published by Edward H. Adelson, professor of vision science at MIT, in 1995. [1]

  9. AOL Help

    help.aol.com

    Get answers to your AOL Mail, login, Desktop Gold, AOL app, password and subscription questions. Find the support options to contact customer care by email, chat, or phone number.