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

Positive Symptoms Schizophrenia: Hallucinations and Delusions01:26

Positive Symptoms Schizophrenia: Hallucinations and Delusions

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...
Positive Symptoms of Schizophrenia: Hallucinations and Delusions01:30

Positive Symptoms of Schizophrenia: Hallucinations and Delusions

Schizophrenia is a complex mental health disorder that can manifest with various positive symptoms, including thought, movement, and behavior disorders. These symptoms significantly disrupt cognitive and motor functions, leading to profound effects on an individual's ability to engage with the world.
Thought Disorders
Disorganized and unusual thought processes mark thought disorders in schizophrenia. One key feature is disorganized speech, where an individual's conversation includes loosely...
Prosopagnosia01:24

Prosopagnosia

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...
Negative and Cognitive Symptoms of Schizophrenia01:30

Negative and Cognitive Symptoms of Schizophrenia

Negative symptoms of schizophrenia indicate a reduction or absence of typical behaviors and emotional responses found in healthy individuals, while positive symptoms reflect an excess or distortion of normal functioning.
Negative Symptoms
Negative symptoms of schizophrenia manifest as deficits in normal emotional and behavioral functioning, profoundly impacting daily life. Individuals with schizophrenia often display a flat affect, characterized by a near-total absence of emotional expression,...
Schizophrenia01:17

Schizophrenia

Schizophrenia, a term introduced by Swiss psychiatrist Eugen Bleuler in 1911, describes a severe psychological disorder marked by profound disruptions in attention, thought processes, language, emotion, and interpersonal relationships. The core feature of schizophrenia is psychosis — a state characterized by a fundamental detachment from reality. This disconnection manifests through distorted logic, impaired perception, and atypical behavior, severely affecting the lives of those diagnosed.
Personality Disorders: Paranoid and Schizoid01:22

Personality Disorders: Paranoid and Schizoid

Personality disorders represent enduring cognition, affect, and behavior patterns that significantly deviate from societal norms. These maladaptive traits often lead to difficulties in various domains, including interpersonal relationships, occupational settings, and overall psychological well-being. Paranoid personality disorder and schizoid personality disorder are two distinct conditions marked by odd or eccentric behavior.
Paranoid Personality Disorder
Paranoid personality disorder is...

You might also read

Related Articles

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

Sort by
Same author

Visualizing pain-processing networks with 7T resting-state functional MRI using pseudo-continuous arterial spin labeling.

Scientific reports·2026
Same author

Pathways to resilience: relationships between cognitive reserve, psychological debt, and Alzheimer's disease biomarkers.

Alzheimer's research & therapy·2026
Same author

Incidence and sociodemographic factors of mechanical restraints in the emergency department: a retrospective single-centre Swiss cohort.

Swiss medical weekly·2026
Same author

Correction: Escitalopram promotes recovery from hand paresis in cortical sensori-motor stroke: a randomized, double-blind, placebo-controlled longitudinal study.

Journal of neuroengineering and rehabilitation·2026
Same author

Association between serum concentrations of psychotropic drugs and seizure quality during ECT treatment.

BMC psychiatry·2026
Same author

Transdiagnostic Patterns of Grip Strength in Schizophrenia, Current Depression, and Remitted Depression.

JAMA psychiatry·2026
Same journal

Childhood Maltreatment and Psychopathology: The Mediating Roles of Mentalizing and Attachment Styles.

Psychopathology·2026
Same journal

Validation of the Examination of Autistic Intersubjective Experiences (EAIE).

Psychopathology·2026
Same journal

Tourette syndrome and rage attacks - a longitudinal and cross-sectional study.

Psychopathology·2026
Same journal

Depressing temporal experiences: the COVID-19 Pandemic lockdown in Victoria, Australia.

Psychopathology·2026
Same journal

Involuntary hospitalization for treatment: Triangulation of Perspectives of patients, relatives, and professionals.

Psychopathology·2026
Same journal

Depersonalization, Emotion Embodiment, and Alexithymia in the General Population.

Psychopathology·2026
See all related articles

Related Experiment Video

Updated: Jun 16, 2026

Behavioral Tasks for Examining Identity Recognition In Mice
06:58

Behavioral Tasks for Examining Identity Recognition In Mice

Published on: February 7, 2025

Performance during face processing differentiates schizophrenia patients with delusional misidentifications.

Sebastian Walther1, Andrea Federspiel, Helge Horn

  • 1University Hospital of Psychiatry, University of Bern, Bern, Switzerland.

Psychopathology
|January 30, 2010
PubMed
Summary
This summary is machine-generated.

Delusional misidentification syndrome (DMS) subtypes, Capgras and Fregoli, show distinct face recognition differences in schizophrenia patients. These findings suggest unique underlying brain mechanisms for each DMS type.

More Related Videos

Measurement of Fronto-limbic Activity Using an Emotional Oddball Task in Children with Familial High Risk for Schizophrenia
13:08

Measurement of Fronto-limbic Activity Using an Emotional Oddball Task in Children with Familial High Risk for Schizophrenia

Published on: December 2, 2015

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

Related Experiment Videos

Last Updated: Jun 16, 2026

Behavioral Tasks for Examining Identity Recognition In Mice
06:58

Behavioral Tasks for Examining Identity Recognition In Mice

Published on: February 7, 2025

Measurement of Fronto-limbic Activity Using an Emotional Oddball Task in Children with Familial High Risk for Schizophrenia
13:08

Measurement of Fronto-limbic Activity Using an Emotional Oddball Task in Children with Familial High Risk for Schizophrenia

Published on: December 2, 2015

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

Area of Science:

  • Neuroscience
  • Psychiatry
  • Cognitive Psychology

Background:

  • Delusional misidentification syndrome (DMS) is of clinical interest but rarely diagnosed.
  • DMS is associated with schizophrenia and may involve face processing pathophysiology.
  • Antagonistic forms include hypoidentification (Capgras) and hyperidentification (Fregoli) syndromes.

Purpose of the Study:

  • To differentiate between Capgras and Fregoli syndromes using a face recognition memory task.
  • To investigate face recognition differences in schizophrenia patients with DMS.

Main Methods:

  • Twenty schizophrenia patients (10 with DMS) and 21 healthy controls performed a face recognition memory task.
  • Participants memorized neutral faces and underwent recognition testing after a 10-minute interval.
  • DMS patients were classified into Fregoli (n=6) or Capgras (n=4) syndromes.

Main Results:

  • Schizophrenia patients with DMS exhibited longer reaction times compared to controls or patients without DMS.
  • Fregoli syndrome patients demonstrated longer reaction times and lower discrimination accuracy than Capgras syndrome patients.
  • These differences were independent of other clinical variables.

Conclusions:

  • Face recognition capabilities vary significantly between schizophrenia subgroups and DMS types.
  • Capgras and Fregoli syndromes in schizophrenia appear to involve distinct pathophysiological mechanisms.
  • The study highlights unique cognitive profiles for hypo- and hyperidentification syndromes.