Pseudohallucination

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A pseudohallucination (from

Ancient Greek: ψευδής (pseudḗs) "false, lying" + "hallucination") is an involuntary sensory experience vivid enough to be regarded as a hallucination, but which is recognised by the person experiencing it as being subjective and unreal. By contrast, a "true" hallucination is perceived as entirely real by the person experiencing it.[1]

The term "pseudohallucination" appears to have been coined by Friedrich Wilhelm Hagen.[2] Hagen published his 1868 book "Zur Theorie der Halluzination," to define them as "illusions or sensory errors".[2] The term was further explored by the Russian psychiatrist Victor Kandinsky (1849–1889).[2] In his work "On Pseudohallucinations" (Russian: "О псевдогаллюцинациях" [o psevdogalliutsinatsiakh]), he described his psychotic experience defining pseudohallucinations as "subjective perceptions similar to hallucinations, with respect to its character and vividness, but that differ from those because these do not have objective reality".[3][2] As an example of pseudohallucinations, Kandinsky gives the hypnagogic hallucinations that occur in normal people just before sleep.[4]

The term is not widely used in the psychiatric and medical fields, as it is considered ambiguous;

hallucinogenic drug. But "the current understanding of pseudohallucinations is mostly based on the work of Karl Jaspers".[7]

A further distinction is made between pseudohallucinations and parahallucinations, the latter being a result of damage to the peripheral nervous system.[8]

They are considered a possible

Charles Bonnet syndrome.[citation needed][10]

See also

References

  1. PMID 9853788
    .
  2. ^
    PMID 26283978
    .
  3. ^ Kandinsky, V. (1885). Kritische und klinische Betrachtungen im Gebiete der Sinnestäuschungen. Berlin: Verlag von Friedlander and Sohn. p. 134
  4. ISBN 9780191841903
    .
  5. S2CID 23322447
    .
  6. PMID 11154715
    .
  7. ^ Sanati, Abdi (2012). "Pseudohallucinations: a critical review" (PDF). Dialogues in Philosophy, Mental and Neuro Sciences. 5 (2): 42–47.
  8. S2CID 19188662
    .
  9. ISBN 9781585620548
    .
  10. ISBN 978-0-19-954859-0
    .

Bibliography
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