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Visual Information Processing in Schizophrenia Patients With Visual Hallucinations

NCT03188133 · Status: UNKNOWN · Phase: NA · Type: INTERVENTIONAL · Enrollment: 90

Last updated 2017-10-09

No results posted yet for this study

Summary

Occurrence of visual hallucinations (VHs) in schizophrenia depend in part on disorders in the processing of late visual information (Top-Down). The broader question of how these top-down mechanisms (cognitive and / or emotional mechanisms) are involved in the occurrence of VHs remains to be specified and very few behavioral studies have so far been interested. The investigators propose to study the implication of Top-Down mechanisms in the visual hallucinatory manifestations, more specifically in the processing of ambiguous stimuli during an emotional priming task. Schizophrenia patients with VHs would have more false visual perceptions in the treatment of ambiguous stimuli than schizophrenia patients with auditory hallucinations or no hallucinations (AH/NH) and healthy controls.

Conditions

  • Schizophrenia
  • Visual Hallucination
  • Auditory Hallucination
  • False Perception

Interventions

OTHER

behavioral task : emotional priming

emotional priming task on ambiguous visual stimuli

Sponsors & Collaborators

  • Central Hospital, Nancy, France

    lead OTHER

Principal Investigators

  • Vincent LAPREVOTE · Central hospital Nancy, Centre Psychothérapique de Nancy

Study Design

Allocation
NON_RANDOMIZED
Purpose
BASIC_SCIENCE
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
55 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2017-10-17
Primary Completion
2018-05-01
Completion
2020-10-31

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT03188133 on ClinicalTrials.gov