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

Category learning and perceptual categorization in schizophrenia.

S Kéri1, G Szekeres, I Szendi

  • 1Department of Psychiatry, Albert Szent-Györgyi Medical University, Szeged, Hungary.

Schizophrenia Bulletin
|September 9, 1999
PubMed
Summary

Schizophrenia patients exhibit impaired category learning, particularly with ill-defined (graded) categories, suggesting a deficit in perceptual abstraction. This impairment is partially overcome by verbal instructions.

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

Neurotherapy for children and adolescents with psychiatric disorders: a state-of-the-art umbrella review of selected clinical methodologies.

Neuroscience and biobehavioral reviews·2025
Same author

"The proof is in the pudding" Response to the Commentary: Do all studies using medical devices fall under the European Medical Device Regulation? Written by Dr. Roman Rethwilm, Prof. Dr. Martin Schecklmann, Dr. Desmond Agboada, Prof. Dr. Til Ole Bergmann, Prof. Dr. Wolfgang Seiberl.

Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology·2024
Same author

The role of high-energy phonons in electron-phonon interaction at conducting surfaces with helium-atom scattering.

Physical chemistry chemical physics : PCCP·2022
Same author

Policy, priorities and practice: 'Being in the room where it happens.' The European Brain Research Area and the Europe, Middle-East and Africa Chapter, International Federation of Clinical Neurophysiology.

Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology·2022
Same author

Evaluating Current Density Modeling of Non-Invasive Eye and Brain Electrical Stimulation Using Phosphene Thresholds.

IEEE transactions on neural systems and rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society·2021
Same author

Prominence of Terahertz Acoustic Surface Plasmon Excitation in Gas-Surface Interaction with Metals.

The journal of physical chemistry letters·2021

Area of Science:

  • Cognitive Neuroscience
  • Psychiatry

Background:

  • Schizophrenia is associated with cognitive deficits.
  • Category learning involves abstracting features to classify stimuli.

Purpose of the Study:

  • To evaluate category learning and perceptual abstraction in schizophrenia patients.
  • To investigate the impact of different learning conditions on category acquisition.

Main Methods:

  • Participants learned discrete (well-defined) and graded (ill-defined) categories using serial presentation, verbal description, and feedback.
  • Performance of schizophrenia patients was compared to controls.

Main Results:

  • Schizophrenia patients showed deficits in learning graded categories after serial presentation.

Related Experiment Videos

  • Verbal descriptions partially mitigated the deficit in graded category learning.
  • Significant impairment in graded category learning re-emerged after feedback, correlating with cognitive symptoms.

    • Conclusions:

    • Perceptual abstraction is impaired in schizophrenia.
    • Top-down verbal processes can partially compensate for this deficit.