Jove
Visualize
Contact Us

Related Experiment Videos

Visual perceptual organization in schizophrenic patients.

W Rief1

  • 1University of Konstanz, Germany.

The British Journal of Clinical Psychology
|November 1, 1991
PubMed
Summary

Schizophrenic patients show a relative, not absolute, deficit in processing global visual information. Their ability to use visual organization depends on the strength of the stimulus

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

How to improve reward sensitivity - Predictors of long-term effects of a randomized controlled online intervention trial.

Journal of affective disorders·2024
Same author

Effectiveness of behavioral activation and mindfulness in increasing reward sensitivity and reducing depressive symptoms - A randomized controlled trial.

Behaviour research and therapy·2023
Same author

Transdiagnostic considerations of the relationship between reward sensitivity and psychopathological symptoms - a cross-lagged panel analysis.

BMC psychiatry·2023
Same author

Really just a little prick? A meta-analysis on adverse events in placebo control groups of seasonal influenza vaccination RCTs.

Vaccine·2022
Same author

Let us talk about death: gender effects in cancer patients' preferences for end-of-life discussions.

Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer·2020
Same author

[Diagnosis F45 is scientifically reliable].

Schmerz (Berlin, Germany)·2018
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

Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Psychiatry

Background:

  • The Place & Gilmore (1980) theory suggests schizophrenic patients have impaired visual perceptual organization.
  • This implies reduced influence from global characteristics in visual displays for individuals with schizophrenia.

Purpose of the Study:

  • To investigate the perceptual organization deficits in schizophrenic patients.
  • To re-evaluate the Place & Gilmore theory using controlled visual stimuli.

Main Methods:

  • Presented visual stimuli (lines on a screen) for 23 ms to 24 schizophrenics, 12 alcoholics, and 24 healthy controls.
  • Used stimuli identical to Place & Gilmore (lines at hexagon corners, homogeneous vs. heterogeneous orientations) and varied line positions.

Main Results:

  • Schizophrenics showed a deficit only when three lines were presented with differing orientations.
  • With more lines or strong Gestalt properties (e.g., hexagon), schizophrenics benefited from homogeneity similarly to controls.
  • The findings partially contradicted the original Place & Gilmore theory.

Conclusions:

  • The visual perceptual organization deficit in schizophrenia is relative, not absolute.
  • Schizophrenic patients can utilize global visual information when Gestalt properties are sufficiently strong.
  • This suggests a nuanced understanding of visual processing in schizophrenia.

Related Experiment Videos