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Reduplicative Paramnesia

  • Reference work entry
  • First Online:
Encyclopedia of Clinical Neuropsychology

  • 9 Accesses

Synonyms

Reduplication delusion

Definition

Delusions are defined as false beliefs based on incorrect inference about external reality, and firmly sustained in spite of the opinions of others or contrary evidence (American Psychiatric Association 1987). Reduplicative paramnesia (RP) is the delusion that a place familiar to the patient exists in two or more physical locations simultaneously. The earliest description of RP was long thought to be by Pick (1903). He described a patient who claimed that Pick’s clinic in Prague had a duplicate in another city. However, Forstl and Beats (1992) discovered that Charles Bonnet, the Swiss natural scientist and philosopher, had reported a case over a century earlier in 1788.

Categorization

Duplication delusions like RP must be distinguished from purely perceptual or hallucinatory disturbances, and from generalized disturbance of cognition. That is, the disorder must involve a mistaken belief (not merely a misperception) and must be persistent (not...

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References and Readings

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Author information

Authors and Affiliations

  1. Department of Psychiatry and Human Behavior, Brown University, Providence, RI, USA

    Paul Malloy

Authors
  1. Paul Malloy
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Corresponding author

Correspondence to Paul Malloy .

Editor information

Editors and Affiliations

  1. Department of Physical Medicine and Rehabilitation, Virginia Commonwealth University, Richmond, VA, USA

    Jeffrey S. Kreutzer

  2. Kessler Foundation, Pleasant Valley Way, West Orange, NJ, USA

    John DeLuca

  3. Independent Practice, Wynnewood, PA, USA

    Bruce Caplan

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Malloy, P. (2018). Reduplicative Paramnesia. In: Kreutzer, J.S., DeLuca, J., Caplan, B. (eds) Encyclopedia of Clinical Neuropsychology. Springer, Cham. https://doi.org/10.1007/978-3-319-57111-9_1397

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