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  2. Stevens's power law - Wikipedia

    en.wikipedia.org/wiki/Stevens's_power_law

    Stevens' power law is an empirical relationship in psychophysics between an increased intensity or strength in a physical stimulus and the perceived magnitude increase in the sensation created by the stimulus. It is often considered to supersede the Weber–Fechner law, which is based on a logarithmic relationship between stimulus and sensation ...

  3. Irradiation illusion - Wikipedia

    en.wikipedia.org/wiki/Irradiation_illusion

    The irradiation illusion is an illusion of visual perception in which a light area of the visual field looks larger than an otherwise identical dark area. It was named by Hermann von Helmholtz around 1867; [1] but the illusion was familiar to scientists long before then; Galileo mentions it in his 1632 book Dialogue Concerning the Two Chief World Systems. [2]

  4. Radiation-induced cognitive decline - Wikipedia

    en.wikipedia.org/wiki/Radiation-induced...

    Radiation-induced cognitive decline describes the possible correlation between radiation therapy and cognitive impairment. Radiation therapy is used mainly in the treatment of cancer. Radiation therapy can be used to cure, care or shrink tumors that are interfering with quality of life. Sometimes radiation therapy is used alone; other times it ...

  5. Ponzo illusion - Wikipedia

    en.wikipedia.org/wiki/Ponzo_illusion

    The Ponzo illusion is a geometrical-optical illusion that takes its name from the Italian psychologist Mario Ponzo (1882–1960). Ponzo never claimed to have discovered it, and it is indeed present in earlier work. Much confusion is present about this including many references to a paper that Ponzo published in 1911 on the Aristotle illusion.

  6. Graves's emergent cyclical levels of existence - Wikipedia

    en.wikipedia.org/wiki/Graves's_emergent_cyclical...

    Graves used a variety of names for his theory during his lifetime, ranging from the generic Levels of Human Existence in his earlier work [5] to lengthy names such as Emergent Cyclical, Phenomenological, Existential Double-Helix Levels of Existence Conception of Adult Human Behavior (1978) and Emergent Cyclical Double-Helix Model of the Adult Bio-Pyscho-Social Behaviour (1981).

  7. Cognitive distortion - Wikipedia

    en.wikipedia.org/wiki/Cognitive_distortion

    Cognitive distortion. A cognitive distortion is a thought that causes a person to perceive reality inaccurately due to being exaggerated or irrational. Cognitive distortions are involved in the onset or perpetuation of psychopathological states, such as depression and anxiety. [1]

  8. Müller-Lyer illusion - Wikipedia

    en.wikipedia.org/wiki/Müller-Lyer_illusion

    The Müller-Lyer effect in a non-illusion. One possible explanation, given by Richard Gregory, [14] is that the Müller-Lyer illusion occurs because the visual system learns that the "angles in" configuration corresponds to a rectilinear object, such as the convex corner of a room, which is closer, and the "angles out" configuration corresponds to an object which is far away, such as the ...

  9. Abstract (summary) - Wikipedia

    en.wikipedia.org/wiki/Abstract_(summary)

    Abstract (summary) An abstract is a brief summary of a research article, thesis, review, conference proceeding, or any in-depth analysis of a particular subject and is often used to help the reader quickly ascertain the paper's purpose. [1] When used, an abstract always appears at the beginning of a manuscript or typescript, acting as the point ...