The term morphopsia comes from the Greek words morphè (form) and opsis (seeing). It is used in a restricted sense to denote a multicoloured *complex visual hallucination with *microptic or * macroptic aspects. Pathophysiologically, this type of hallucination has historically been associated with lesions affecting the visual pathways of the temporal lobe. In a broader sense, the term morphopsia is used as a synonym for *formed visual hallucination. In the latter sense, it is used in opposition to the term * photopsia.
   Lhermitte, J. (1959). Les hallucinations dans leurs relations avec les lésions du lobe occipital. Paris: Masson et Cie., Éditeurs.

Dictionary of Hallucinations. . 2010.

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  • complicated metamorphopsia —    The term complicated metamorphopsia comes from the Latin verb complicare (to fold together), and the Greek words metamorphoun (to change the form) and opsis (seeing). It is used to denote a type of *metamorphopsia (i.e. a visual distortion)… …   Dictionary of Hallucinations

  • formed hallucination —    Also known as formed visual hallucination, formed vision, organized hallucination, and morphopsia. All five terms are used to denote a visual hallucination depicting a distinctive shape, pattern, object, or scene. Thus the category of formed… …   Dictionary of Hallucinations

  • metamorphopsia —    The term metamorphopsia comes from the Greek words metamorphoun (to change the form) and opsis (seeing). It translates roughly as seeing an altered form . It is not clear who introduced the term, but it appears in a medical lexicon as early as …   Dictionary of Hallucinations

  • photopsia —    Also known as photome, phosphorescence of the retina, scintillations, and suffusio scintillans. The term photopsia comes from the Greek words photizein (to give light, to illuminate) and opsis (seeing). It is used to denote a group of * simple …   Dictionary of Hallucinations

  • prosopometamorphopsia —    Also known as metamorphopsia for faces. The term prosopometamorphopsia is indebted to the Greek words prosopon (face, expression, part, mask), metamorphoun (to change the form), and opsis (seeing). It translates loosely as seeing faces in an… …   Dictionary of Hallucinations

  • visual hallucination —    Also referred to as vision. Both terms are indebted to the Latin noun visio, which means sight. They are used to denote a hallucination of sight. Historically, visual hallucinations have been divided into a multitude of types. Using their… …   Dictionary of Hallucinations

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