irritative form of hallucinatory activity

irritative form of hallucinatory activity
   A term introduced in or shortly before 1973 by the American ophthalmologist David Glendenning Cogan (1908-1993) to denote a type of hallucinatory activity attributable to epileptiform (i.e. 'irritative') activity within the CNS. The ensuing hallucinations are referred to as " focal hallucinations. Cogan opposes the irritative form of hallucinatory activity to the "release form, in which hallucinations are designated as perceptual material released from 'lower' cerebral loci.
   References
   Cogan, D.G. (1973). Visual hallucinations as release phenomena. Albrecht von Graefes Archiv für Klinische und Experimentelle Oph-thalmologie, 188, 139-150.

Dictionary of Hallucinations. . 2010.

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  • centripetal theory of hallucinatory activity —    The name centripetal theory refers to an explanatory model of hallucinatory activity which is traditionally attributed to the German physiologist and zoologist Johannes Peter Müller (18011858). Conceptually, the centripetal theory constitutes… …   Dictionary of Hallucinations

  • release form of hallucinatory experience —    A term introduced in or shortly before 1973 by the American ophthalmologist David Glendenning Cogan (1908 1993) to denote a type of hallucinatory activity which is due to the release of perceptual material from lower regions of the brain.… …   Dictionary of Hallucinations

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