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  2. List of optical illusions - Wikipedia

    en.wikipedia.org/wiki/List_of_optical_illusions

    The Hollow-Face illusion is an optical illusion in which the perception of a concave mask of a face appears as a normal convex face. Hybrid image. A Hybrid image is an optical illusion developed at MIT in which an image can be interpreted in one of two different ways depending on viewing distance. Illusory contours.

  3. List of medical mnemonics - Wikipedia

    en.wikipedia.org/wiki/List_of_medical_mnemonics

    This is a list of mnemonics used in medicine and medical science, categorized and alphabetized. A mnemonic is any technique that assists the human memory with information retention or retrieval by making abstract or impersonal information more accessible and meaningful, and therefore easier to remember; many of them are acronyms or initialisms which reduce a lengthy set of terms to a single ...

  4. Serial-position effect - Wikipedia

    en.wikipedia.org/wiki/Serial-position_effect

    Serial-position effect. Serial-position effect is the tendency of a person to recall the first and last items in a series best, and the middle items worst. [1] The term was coined by Hermann Ebbinghaus through studies he performed on himself, and refers to the finding that recall accuracy varies as a function of an item's position within a ...

  5. Recall (memory) - Wikipedia

    en.wikipedia.org/wiki/Recall_(memory)

    Recall is a major part of memory so the history of the study of memory in general also provides a history of the study of recall. Hermann Ebbinghaus. In 1885, Hermann Ebbinghaus created nonsense syllables, combinations of letters that do not follow grammatical rules and have no meaning, to test his own memory. He would memorize a list of ...

  6. Extrasensory perception - Wikipedia

    en.wikipedia.org/wiki/Extrasensory_perception

    [1] [2] Second sight is an alleged form of extrasensory perception, whereby a person perceives information, in the form of a vision, about future events before they happen (precognition), or about things or events at remote locations (remote viewing). [3] [4] There is no evidence that second sight exists. Reports of second sight are known only ...

  7. Face perception - Wikipedia

    en.wikipedia.org/wiki/Face_perception

    Cognitive psychology. Facial perception is an individual's understanding and interpretation of the face. Here, perception implies the presence of consciousness and hence excludes automated facial recognition systems. Although facial recognition is found in other species, [1] this article focuses on facial perception in humans. The perception of ...

  8. Visual perception - Wikipedia

    en.wikipedia.org/wiki/Visual_perception

    Visual perception is the ability to interpret the surrounding environment through photopic vision (daytime vision), color vision, scotopic vision (night vision), and mesopic vision (twilight vision), using light in the visible spectrum reflected by objects in the environment.

  9. Preconscious - Wikipedia

    en.wikipedia.org/wiki/Preconscious

    Psychoanalysis. In psychoanalysis, preconscious is the loci preceding consciousness. Thoughts are preconscious when they are unconscious at a particular moment, but are not repressed. Therefore, preconscious thoughts are available for recall and easily 'capable of becoming conscious'—a phrase attributed by Sigmund Freud to Josef Breuer. [ 1]