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

Motion perception in schizophrenia.

Y Chen1, G P Palafox, K Nakayama

  • 1Department of Psychology, Harvard University, Cambridge, Mass, USA.

Archives of General Psychiatry
|February 20, 1999
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

Functional disconnection between the visual cortex and right fusiform face area in schizophrenia.

Schizophrenia research·2019
Same author

A clinical model for treatment of dyslexia.

Annals of dyslexia·2013
Same author

Contextual insensitivity in schizophrenic language processing: evidence from lexical ambiguity.

Journal of abnormal psychology·2001
Same author

Subunit interactions within the Saccharomyces cerevisiae DNA polymerase epsilon (pol epsilon ) complex. Demonstration of a dimeric pol epsilon.

The Journal of biological chemistry·2000
Same author

Quantitative characterization of eye tracking dysfunction in schizophrenia.

Schizophrenia research·2000
Same author

Intermittent degradation in performance in schizophrenia.

Schizophrenia research·1999
Same journal

Reviewers Who Completed a Review During 2011.

Archives of general psychiatry·2017
Same journal

Conflicts of interest-reply.

Archives of general psychiatry·2013
Same journal

Epidemiologic evidence concerning the bereavement exclusion in major depression-reply.

Archives of general psychiatry·2013
Same journal

This month in archives of general psychiatry.

Archives of general psychiatry·2013
Same journal

About this journal.

Archives of general psychiatry·2013
Same journal

This month in archives of general psychiatry.

Archives of general psychiatry·2013
See all related articles

Patients with schizophrenia exhibit impaired motion perception, specifically in discriminating velocity differences. This deficit, found in a subgroup, may link to eye-tracking dysfunction in schizophrenia research.

Area of Science:

  • Neuroscience
  • Psychiatry
  • Visual Perception

Background:

  • Eye-tracking dysfunction is prevalent in schizophrenia patients and their relatives.
  • Motion processing deficits may underlie smooth pursuit eye movement abnormalities.
  • Visual perception, including motion, is often altered in schizophrenia.

Purpose of the Study:

  • To investigate motion perception deficits in schizophrenia.
  • To assess if impaired motion processing is linked to eye-tracking dysfunction.
  • To evaluate contrast sensitivity for velocity discrimination in schizophrenia patients.

Main Methods:

  • Measured contrast sensitivity for velocity discrimination in 15 schizophrenia patients and 18 controls.
  • Utilized orientation discrimination and contrast detection as control tasks.

Related Experiment Videos

  • Assessed differences in visual perception abilities between groups.

    • Main Results:

    • Schizophrenia patients showed significantly lower contrast sensitivity for velocity discrimination.
    • A severe (up to 10-fold) reduction was observed in approximately 40% of patients.
    • No significant group differences were found in control visual tasks.

    Conclusions:

    • Velocity discrimination is impaired in a subgroup of schizophrenia patients.
    • This finding supports a link between motion processing deficits and schizophrenia.
    • Further research may explore therapeutic targets for visual perception abnormalities.