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  2. USA Memory Championship - Wikipedia

    en.wikipedia.org/wiki/USA_Memory_Championship

    The USA Memory Championship is an annual competition that took place every spring in New York City until 2016, and is currently held in Orlando, Florida, after an online qualifier. It was founded by Tony Dottino, President of Dottino Consulting Group, Inc., and Marshall Tarley in 1997.

  3. Concentration (card game) - Wikipedia

    en.wikipedia.org/wiki/Concentration_(card_game)

    If a remaining unknown card is chosen randomly, there is a 1/(t−1−n) chance of getting a match, but also a n/(t−1−n) chance of providing opponents with the information needed to make a match. [5] There are some exceptions to this rule that apply on the fringe cases, where n = 0 or 1 or towards the end of the game. Concentration (card game)

  4. Luminous efficiency function - Wikipedia

    en.wikipedia.org/wiki/Luminous_efficiency_function

    The CIE 1924 photopic V(λ) luminosity function, [cie 3] which is included in the CIE 1931 color-matching functions as the y (λ) function, has long been acknowledged to underestimate the contribution of the blue end of the spectrum to perceived luminance. There have been numerous attempts to improve the standard function, to make it more ...

  5. A Game of Concentration - Wikipedia

    en.wikipedia.org/wiki/A_Game_of_Concentration

    The game is played using a matrix of numbered panels, either 4 x 4 (for 16 panels) or 5 x 6 (for 30 panels). Using the keypad, players enter the number of the panels they wish to reveal. If the images behind the two panels match, the panels are removed and the player scores 1 or 2 points, depending on what difficulty the switch is set to, along ...

  6. CIE 1931 color space - Wikipedia

    en.wikipedia.org/wiki/CIE_1931_color_space

    A comparison between a typical normalized M cone's spectral sensitivity and the CIE 1931 luminosity function for a standard observer in photopic vision. In the CIE 1931 model, Y is the luminance, Z is quasi-equal to blue (of CIE RGB), and X is a mix of the three CIE RGB curves chosen to be nonnegative (see § Definition of the CIE XYZ color space).

  7. Lumosity to refund $2 million; app's 'brain training ... - AOL

    www.aol.com/news/2016-01-05-lumosity-to-refund-2...

    The brain training app is in hot water after claims it could stave off memory loss, dementia, and even Alzheimer's disease were found to be ungrounded. Lumosity to refund $2 million; app's 'brain ...

  8. AOL Mail

    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. Match-to-sample task - Wikipedia

    en.wikipedia.org/wiki/Match-to-sample_task

    The match-to-sample task has been shown to be an effective tool to understand the impact of sleep deprivation on short-term memory. One research study [9] compared performance on a traditional sequential test battery with that on a synthetic work task requiring subjects to work concurrently on several tasks, testing subjects every three hours during 64 hrs of sleep deprivation.

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