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REALITY MONITORING

NCT05711082 · Status: RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 39

Last updated 2025-03-06

No results posted yet for this study

Summary

Reality-monitoring characterizes the ability to determine whether information was perceived in the environment or only imagined . Impaired reality-monitoring abilities have been associated with hallucinations in patients with schizophrenia and patients with Parkinson's disease.

The investigators hypothesize a link between dopaminergic (DA) transmission and reality-monitoring.

Conditions

  • Neurosciences

Interventions

OTHER

Précurseur de la dopamine

In the first condition, volunteers will receive a 100mg dose of L-dopa, 25mg dose of Aromatic amino acid decarboxylase inhibitors (Benserazide) and 10mg dose of Domperidone. In the second condition, volunteers will receive Sulpiride 800mg. In the third condition, volunteers will receive placebo Reality-monitoring performances will be evaluated with a standardized task. Working-memory will be evaluated with the n-back task. Self-monitoring performances will be observed during a speech production experiment in which speakers monitor their auditory feedback while speaking. Speech Bayesian reasoning: This task is a home-made task investigating the influence of prior on speech processing. Subjects will be required to identify speech in ambiguous auditory stimuli. Visual Bayesian reasoning: This task investigates the influence of prior on visual processing. Subjects will be required to recognize morph between faces and house.

OTHER

antagoniste D2

In the second condition, volunteers will receive Sulpiride 800 mg

OTHER

PLACEBO

In the third condition, volunteers will receive placebo

Sponsors & Collaborators

  • Hôpital le Vinatier

    lead OTHER

Principal Investigators

  • FILIPE GALVAO · Centre Hospitalier le Vinatier

Study Design

Allocation
RANDOMIZED
Purpose
BASIC_SCIENCE
Masking
SINGLE
Model
CROSSOVER

Eligibility

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

Timeline & Regulatory

Start
2024-01-15
Primary Completion
2026-06-30
Completion
2026-12-31

Countries

  • France

Study Locations

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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 NCT05711082 on ClinicalTrials.gov