Accounting for Delusional Misidentifications

  title={Accounting for Delusional Misidentifications},
  author={Hadyn D. Ellis and Andrew W Young},
  journal={British Journal of Psychiatry},
  pages={239 - 248}
  • H. Ellis, A. Young
  • Published 1 August 1990
  • Psychology
  • British Journal of Psychiatry
Accounts of the major DMSs are given using theoretical models of the functional components underlying recognition of familiar people. Thus, Capgras' syndrome is suggested to involve impairment of processes that can support ‘covert’ recognition of familiar faces in prosopagnosia. It therefore forms a potential ‘mirror image’ of the impairments underlying prosopagnosia, and earlier attempts to link the two conditions directly are questioned. Frégoli syndrome and intermetamorphosis are explained… 

Facial processing and the delusional misidentification syndromes

Research indicates that the delusional misidentification syndromes (DMS) are linked to right hemisphere dysfunction. However, the extent and nature of any underlying processing impairment in patients

Delusion of inanimate doubles: Description of a case of focal retrograde amnesia

Data suggest that M.P. did ‘perceive’ the actual differences between doubles and originals rather than ‘confabulate’ them, and the cognitive profile, characterized by retrograde episodic amnesia, but neither object processing impairment nor confabulations, supports this hypothesis.

Towards an Understanding of Delusions of Misidentification: Four Case Studies

Four detailed cases of delusions of misidentification (DM) are presented: two cases of misidentification of the reflected self, one of reverse intermetamorphosis, and one of reduplicative paramnesia.

Delusional misidentification of inanimate objects: a literature review and neuropsychological analysis of cognitive deficits in two cases.

It is proposed that an extension of Ellis and Young's (1990) account of Capgras delusion can explain the cognitive impairments in case of DID.

Delusions: A suitable case for imaging?

  • H. Ellis
  • Psychology
    International journal of psychophysiology : official journal of the International Organization of Psychophysiology
  • 2007

The Defensive Function of Persecutory Delusions

Depressed and normal subjects showed similar causal inferences for both attributional measures, but deluded subjects showed a marked shift in internality, attributing negative outcomes to external causes on the transparent Attributional Style Questionnaire but, on the more opaque Pragmatic Inference Task, showing a cognitive style resembling that of the depressed group.

A One-Stage Explanation of the Cotard Delusion

Cognitive neuropsychiatry (CN) is the explanation of psychiatric disorder by the methods of cognitive neuropsychology. Within CN there are, broadly speaking, two approaches to delusion. The first

Delusions, dreams, and the nature of identification

Delusional misidentification is commonly understood as the product of an inference on the basis of evidence present in the subject's experience. For example, in the Capgras delusion, the patient sees

The Anatomy of Delusion

Capgras Syndrome and Other Delusional Misidentification Syndromes.

The delusional misidentification syndromes are a group of disorders, characterized by patients mistaking the identity of people they know, although they recognize them physically, that develop in line with the associated pathology.



Face Recognition Dysfunction and Delusional Misidentification Syndromes (DMS)

Capgras’ syndrome is a typical case of dysfunction of face recognition following brain damage, with the postulation of imaginery differences and the further expressed belief that the real person has been replaced by a double.

The Delusion of Inanimate Doubles

Evidence that the Capgras delusion has long been held to be specific for close personal relationships is presented and the implications for accepting psychodynamic explanations of the phenomenon are discussed.

The Delusional Misidentification Syndromes

The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication.

Current Issues on Prosopagnosia

There is a tendency in the literature to treat prosopagnosia as if it were a single disorder, dependent on the disruption of a unique mechanism and associated with a stereotyped lesional picture. The

Prosopagnosia: Anatomic basis and behavioral mechanisms

Critical analysis of postmortem and CT scan data indicates that prosopagnosia is associated with bilateral lesions of the central visual system and those lesions are functionally symmetric.

Past and Recent Studies of Prosopagnosia

Prosopagnosia is usually characterised by a sudden loss in ability to recognise faces of familiar people. Sufferers typically have then to rely on voices or dress for identifying spouse, family,

The Cognitive Psychophysiology of Prosopagnosia

Prosopagnosia is a rare neurobehavioral syndrome in which a patient with brain damage becomes unable to recognize previously familiar persons by visual reference to their facial features (Bodamer,