Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Prosopagnosia01:24

Prosopagnosia

1.3K
Prosopagnosia, also known as face blindness, is the inability to recognize faces. In severe cases, individuals with prosopagnosia may not recognize close family members, including parents and spouses, by their faces. For instance, someone with prosopagnosia might walk past their child in a crowd, only realizing their mistake upon noticing their child's distinctive backpack or favorite jacket. Prosopagnosia specifically impairs facial recognition, while the recognition of other objects or...
1.3K
Dissociative Identity Disorder01:30

Dissociative Identity Disorder

2.4K
Dissociative Identity Disorder (DID), previously termed multiple personality disorder, is a complex psychological condition characterized by the presence of two or more distinct identities or personality states. Each identity exhibits unique patterns of behavior, voice, and mannerisms and may possess separate memories and emotional responses. The alternating control between identities can result in memory gaps and challenges in recalling daily activities, often exacerbating the individual's...
2.4K
Visual Agnosia01:12

Visual Agnosia

2.0K
Visual agnosia is a condition characterized by the inability to recognize visually presented objects despite having normal vision. For instance, a person with visual agnosia can describe the shape and color of an object but cannot identify or name it. This impairment does not affect their visual field, acuity, color vision, brightness discrimination, language, or memory. An example of this condition in a social setting is someone at a dinner party asking for "that silver thing with a round...
2.0K
Positive Symptoms Schizophrenia: Hallucinations and Delusions01:26

Positive Symptoms Schizophrenia: Hallucinations and Delusions

1.1K
Schizophrenia is a complex psychiatric disorder characterized by a range of symptoms that significantly impact cognition, behavior, and emotional regulation. Among these, the positive symptoms stand out as they involve the addition or exaggeration of normal mental functions, deviating markedly from typical behavior and perception. Hallucinations and delusions are prominent positive symptoms, each profoundly affecting the individual's experience of reality.
Hallucinations
Hallucinations in...
1.1K
False Memories01:18

False Memories

706
False memories represent a cognitive distortion in which individuals recall events that did not happen, or remember them in an altered form. This phenomenon highlights the brain's constructive nature in processing and recalling memories, emphasizing that memory is not a perfect representation of past events but rather a dynamic reconstruction influenced by various factors.
One primary source of false memories is misattribution, where individuals incorrectly associate external information...
706
Dissociative Disorders01:27

Dissociative Disorders

1.1K
Dissociative disorders represent complex psychological conditions characterized by disruptions in consciousness, memory, identity, or perception. These disruptions cause individuals to experience a disconnection from their thoughts, emotions, and memories. The phenomenon is not merely an occasional lapse in attention but a profound alteration in mental functioning that can severely impact daily life.
Dissociative Fugue
A hallmark feature of dissociative disorders is the dissociative fugue...
1.1K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

A wise child: Face perception by human neonates.

The Behavioral and brain sciences·2014
Same author

Voice recognition impairment in a blind Capgras patient.

Behavioural neurology·2014
Same author

Reduplication of visual stimuli.

Behavioural neurology·2014
Same author

Delusional misidentification incident in a right hemisphere stroke patient.

Behavioural neurology·2014
Same author

Covert face recognition without prosopagnosia.

Behavioural neurology·2014
Same author

A CLINICAL ANALYSIS OF AN EXTRAPYRAMIDAL SYNDROME; PARALYSIS AGITANS AND POSTENCEPHALITIC PARKINSONISM.

The Journal of neurology and psychopathology·2011
Same journal

Social Determinants of Health and Their Association With Parkinson's Disease Prevalence in US Adults: Insights From NHANES 2001-2020.

Behavioural neurology·2026
Same journal

GLP-1 Agonist Attenuates Nicotine Reward-Related Behavior by Regulating the Prepro-Orexin in the Hypothalamus and Prepro-Glucagon in the Nucleus Tractus Solitarius.

Behavioural neurology·2026
Same journal

Using Virtual Reality to Complement Paper-and-Pencil Tests to Assess Visual Unilateral Spatial Neglect: A Feasibility Study.

Behavioural neurology·2026
Same journal

Adverse Childhood Experiences Underlie Race-Related Differences in Neural Reactivity to Stress.

Behavioural neurology·2026
Same journal

The Clinical Effect of Annonaceae Fruit Consumption on Caribbean Parkinson's Disease Severity.

Behavioural neurology·2026
Same journal

Mind the Gap: A Systematic Review of Borderline Intellectual Functioning in Childhood and Adolescence.

Behavioural neurology·2026
See all related articles

Related Experiment Video

Updated: May 3, 2026

Conscious and Non-conscious Representations of Emotional Faces in Asperger's Syndrome
08:31

Conscious and Non-conscious Representations of Emotional Faces in Asperger's Syndrome

Published on: July 31, 2016

13.2K

Face processing impairments and delusional misidentification.

A W Young1, H D Ellis2, T K Szulecka3

  • 1Department of Psychology, University of Durham, Durham DH1 3LE, UK.

Behavioural Neurology
|February 4, 2014
PubMed
Summary
This summary is machine-generated.

This study investigated face processing in patients with delusional misidentification syndromes, including Frégoli syndrome and intermetamorphosis. Findings reveal specific impairments in face recognition and matching, linking these deficits to neurological conditions.

More Related Videos

Holistic Facial Composite Creation and Subsequent Video Line-up Eyewitness Identification Paradigm
09:49

Holistic Facial Composite Creation and Subsequent Video Line-up Eyewitness Identification Paradigm

Published on: December 24, 2015

16.2K
Perceptual and Category Processing of the Uncanny Valley Hypothesis' Dimension of Human Likeness: Some Methodological Issues
07:34

Perceptual and Category Processing of the Uncanny Valley Hypothesis' Dimension of Human Likeness: Some Methodological Issues

Published on: June 3, 2013

19.5K

Related Experiment Videos

Last Updated: May 3, 2026

Conscious and Non-conscious Representations of Emotional Faces in Asperger's Syndrome
08:31

Conscious and Non-conscious Representations of Emotional Faces in Asperger's Syndrome

Published on: July 31, 2016

13.2K
Holistic Facial Composite Creation and Subsequent Video Line-up Eyewitness Identification Paradigm
09:49

Holistic Facial Composite Creation and Subsequent Video Line-up Eyewitness Identification Paradigm

Published on: December 24, 2015

16.2K
Perceptual and Category Processing of the Uncanny Valley Hypothesis' Dimension of Human Likeness: Some Methodological Issues
07:34

Perceptual and Category Processing of the Uncanny Valley Hypothesis' Dimension of Human Likeness: Some Methodological Issues

Published on: June 3, 2013

19.5K

Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Psychiatry

Background:

  • Delusional misidentification syndromes (DMS) are rare neuropsychiatric disorders.
  • Patients with DMS often exhibit profound alterations in recognizing familiar individuals.
  • The precise nature of face processing deficits in DMS remains incompletely understood.

Purpose of the Study:

  • To investigate the face processing capabilities of patients diagnosed with Frégoli syndrome and intermetamorphosis.
  • To determine if specific deficits in facial recognition, emotional expression identification, and facial memory are associated with these syndromes.
  • To explore the relationship between face processing impairments, delusional misidentification, and underlying brain injury.

Main Methods:

  • Detailed neuropsychological assessments of face processing abilities were conducted.
  • Tasks included recognition of emotional facial expressions, identification of familiar faces, matching unfamiliar faces, and memory for unfamiliar faces.
  • Four patients with DMS (one Frégoli, three intermetamorphosis) were evaluated.

Main Results:

  • The Frégoli patient (GC) demonstrated impaired familiar face identification and severe deficits in matching unfamiliar faces across different disguises.
  • Two intermetamorphosis patients (SL, GS) exhibited impaired face processing abilities.
  • One intermetamorphosis patient (JS) performed within normal limits on all face processing tasks.

Conclusions:

  • Face processing impairments are not universal across all patients with delusional misidentification syndromes.
  • Specific deficits in facial recognition and matching may be linked to Frégoli syndrome and some forms of intermetamorphosis.
  • These findings contribute to understanding the neural underpinnings of DMS and their impact on social cognition.