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 Experiment Videos

Gaze direction determination in schizophrenia.

Nicolas Franck1, Timothy Montoute, Nelly Labruyère

  • 1Institut des Sciences Cognitives, CNRS UMR 5015, 67 Bd Pinel, 69675, Bron cedex, France. franck@isc.cnrs.fr

Schizophrenia Research
|June 20, 2002
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same author

Mapping personal recovery in schizophrenia spectrum disorders: an exploratory machine learning study of self-reported stage classifications.

Frontiers in public health·2026
Same author

Integrating Mental Health and Social Care in Transitional Housing: Horizon Health and Housing Partnership.

Psychiatric services (Washington, D.C.)·2026
Same author

Are routinely collected clinical and sociodemographic characteristics associated with social functioning and activities of daily living in schizophrenia? A machine learning approach descriptive of a schizophrenia cohort.

PloS one·2026
Same author

Examining the associations between manic symptoms and cognitive performance in bipolar disorders: evidence from a cross-sectional replication study in the FACE-BD cohort.

International journal of bipolar disorders·2026
Same author

Anticipating incomplete patient-reported outcomes in schizophrenia: a machine learning approach to predict the occurrence of missing data.

Health and quality of life outcomes·2026
Same author

Tobacco craving and suicidal risk in a cohort of subjects with schizophrenia: results from the national FACE-SZ cohort.

Psychiatry research·2026

Schizophrenia patients can discriminate gaze direction, but show slower processing for mutual gaze tasks. This suggests intact perception but potential higher-level analysis impairments in schizophrenia.

Area of Science:

  • Neuroscience
  • Psychiatry
  • Cognitive Psychology

Background:

  • Paranoid symptoms in schizophrenia are hypothesized to stem from impaired gaze determination.
  • Understanding gaze discrimination is crucial for elucidating the mechanisms behind schizophrenia symptoms.

Purpose of the Study:

  • To investigate gaze discrimination abilities in individuals with schizophrenia, differentiating between those with and without persecutory delusions.
  • To compare gaze perception performance between schizophrenia patients and healthy controls.

Main Methods:

  • Thirty-two schizophrenia patients (20 with persecutory delusions, 12 without) and 32 controls performed two gaze discrimination tasks.
  • Task 1: Judging portrait gaze direction (right vs. left).
  • Task 2: Detecting mutual gaze (looking at the subject).

Related Experiment Videos

Main Results:

  • No significant difference in absolute gaze discrimination thresholds between schizophrenia patients (paranoid or not) and controls.
  • Both paranoid patients and controls showed finer discrimination for right/left gaze than for mutual gaze detection.
  • Schizophrenia patients took significantly longer than controls to determine mutual gaze, while control task durations were similar.

Conclusions:

  • Perceptual abilities, specifically gaze discrimination, appear to be preserved in schizophrenia.
  • Delusions in schizophrenia may be linked to impairments in higher-level cognitive analysis rather than basic perception.