positive spontaneous visual phenomenon
- positive spontaneous visual phenomenon
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The expression positive spontaneous visual phenomenon is used as an umbrella term for *visual hallucinations that may occur in individuals with impaired vision. Using complexity as a guiding principle, the group of PSVP can be divided into *phosphenes, *photopsias, and *formed visual hallucinations.
References
Vaphiades, M.S. (2000). Disorders ofvisual integration. American Orthoptic Journal, 50, 101106.
Dictionary of Hallucinations.
J.D. Blom.
2010.
Look at other dictionaries:
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
phosphene — Also known as unstructured photopsia. The term phosphene comes from the Greek words phos (light) and phainein (to shine). It is used to denote a transient flash or spark of light, commonly referred to as seeing stars . Phosphenes are * visual… … Dictionary of Hallucinations
PSVP — see positive spontaneous visual phenomenon … Dictionary of Hallucinations
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