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  2. Just-noticeable difference - Wikipedia

    en.wikipedia.org/wiki/Just-noticeable_difference

    Modern approaches to psychophysics, for example signal detection theory, imply that the observed JND, even in this statistical sense, is not an absolute quantity, but will depend on situational and motivational as well as perceptual factors. For example, when a researcher flashes a very dim light, a participant may report seeing it on some ...

  3. Weber–Fechner law - Wikipedia

    en.wikipedia.org/wiki/Weber–Fechner_law

    Weber found that the just noticeable difference (JND) between two weights was approximately proportional to the weights. Thus, if the weight of 105 g can (only just) be distinguished from that of 100 g, the JND (or differential threshold) is 5 g.

  4. Psychophysics - Wikipedia

    en.wikipedia.org/wiki/Psychophysics

    The just-noticeable difference is not a fixed quantity; rather, it varies depending on the intensity of the stimuli and the specific sense being tested. [17] According to Weber's Law, the just-noticeable difference for any stimulus is a constant proportion, regardless of variations in intensity. [18]

  5. Sensory threshold - Wikipedia

    en.wikipedia.org/wiki/Sensory_threshold

    In psychophysics, sensory threshold is the weakest stimulus that an organism can sense.Unless otherwise indicated, it is usually defined as the weakest stimulus that can be detected half the time, for example, as indicated by a point on a probability curve. [1]

  6. 50 Examples Proving That Not All Engineers Are That Smart - AOL

    www.aol.com/76-photos-absolute-worst-jobs...

    Just because a man on YouTube said that “anyone could do it” doesn’t mean that you’re actually capable of knocking down a wall or retiling your kitchen. #19 Image credits: engrjezamora

  7. Inattentional blindness - Wikipedia

    en.wikipedia.org/wiki/Inattentional_blindness

    The following criteria are required to classify an event as an inattentional blindness episode: 1) the observer must fail to notice a visual object or event, 2) the object or event must be fully visible, 3) observers must be able to readily identify the object if they are consciously perceiving it, [3] and 4) the event must be unexpected and the failure to see the object or event must be due ...

  8. Impression management - Wikipedia

    en.wikipedia.org/wiki/Impression_management

    Publishers of said communication do not accept gifts, benefits, payments etc.; for work, or their services Creating results and spreading results that are attainable and they can deliver. Being fully truthful to other people, and themselves. Media is a major resource in the public relations career especially in news networks.

  9. Illusory motion - Wikipedia

    en.wikipedia.org/wiki/Illusory_motion

    Billboards and other electronic signs use apparent motion to simulate moving text by flashing lights on and off as if the text is moving.. The term illusory motion, or motion illusion or apparent motion, refers to any optical illusion in which a static image appears to be moving due to the cognitive effects of interacting color contrasts, object shapes, and position. [1]