sound phosphene
   A term used to denote a type of synaesthesia characterized by a transient flash or spark of light (i.e. a *phosphene) which is triggered by a sudden sound. Sound phosphenes are typically perceived in a dark environment. A special variant is the * visual sleep start. The term sound phosphene is used in opposition to the terms *convergence phosphene, *flick phosphene, and *movement phosphene.
   References
   Harrison, J. (2001). Synaesthesia. The strangest thing. Oxford: Oxford University Press.

Dictionary of Hallucinations. . 2010.

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  • flick phosphene —    Also known as eye movement phosphene. The term flick phosphene was introduced in or shortly before 1957 by the American ophthalmologist Bernard R. Nebel, who had observed the concomitant phenomenon in himself. The term is used to denote a type …   Dictionary of Hallucinations

  • movement phosphene —    A term introduced in or shortly before 1976 by the American neurologists Floyd A. Davis et al. to denote a type of * phosphene (i.e. a transient flash or spark of light) that may be evoked by eye movement. Etiologically, movement phosphenes… …   Dictionary of Hallucinations

  • visual sleep start —    A term used to denote a photopsia (i.e. a flash of light) which may occasionally accompany the * auditory sleep start. Phenomenologi cally, the visual sleep start shows certain similarities to the * sound phosphene. For a further explanation,… …   Dictionary of Hallucinations

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