Vestibular and Multisensory Influence on Bodily and Spatial Representations. Behavioral and Electrophysiological Investigations in Vestibular-defective Patients and Healthy Volunteers

The present project aims at describing how vestibular signals contribute to the multisensory mechanisms of bodily self-consciousness.

There is a large body of data regarding the sensory and neural mechanisms of self-consciousness, but most studies have so far demonstrated the contribution of visual, tactile and proprioceptive signals to bodily self-consciousness. Thus, most studies have neglected the contribution of the vestibular system, a major sensory system for spatial and bodily representations. The vestibular system is sensitive to head motions in space and head inclinations with respect to gravity and it should therefore contribute significantly to several bodily experiences. This contribution should be put under neuroscientific scrutiny. We believe that the current neuroscientific models of bodily self-consciousness will be incomplete until they incorporate the contribution of vestibular signals.

The present project specifically aims at testing the hypothesis according to which vestibular signals significantly influence bodily self-consciousness, in particular first-person and third-person perspective taking and the internal body models (i.e. the body schema and body image). The present project also aims at describing how cortical vestibular processing is modified during experimental changes of perspective taking and viewpoint. In addition, the present project will describe whether vestibular disorders change performances in third-person perspective taking tasks and modify internal body models. This should help understanding bodily symptoms in vestibular-defective patients. To this end, we will combine approaches from psychophysics and electrophysiology (electromyography, electroencephalography) in healthy volunteers and behavioral approached in patients with vestibular disorders.

These studies should further the understanding of how the brain processes vestibular signals, which is to date poorly understood. In addition, the outcome of the present project should help understanding the multiple and complex symptoms reported by patients with vestibular diseases, and should therefore improve their treatment.

Study Overview

Study Type

Interventional

Enrollment (Actual)

208

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • Marseille, France, 13354
        • Assistance Publique Hopitaux de Marseille

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • men(people) or women from 18 to 65 years old
  • patients having benefited from a surgical operation (neurotomie vestibulaire unilateral) within the framework of a disease of invalidating Ménière or a neurinome of the accoustique, or patients with an acute(sharp) infringement(achievement) of the system vestibulaire.

Exclusion Criteria:

The patients suffering from an additional hurt of the central nervous system,

  • the patients suffering from driving infringements(achievements),
  • the subjects having neurological histories (other than those led(inferred) by the disorders(confusions) vestibulaires) or psychiatric,
  • the vulnerable persons aimed by articles L. 1121-5, L. 1121-6 and L. 1121-8,
  • the persons unfit of the reading and the writing of French not allowing the understanding of the note of information and the form of consent

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Basic Science
  • Allocation: Non-Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Volunteer healthy
healthy volunteers
Experimental: patients
vestibular defective patients

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
vestibular signals
Time Frame: 4 years
4 years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

June 1, 2012

Primary Completion (Actual)

October 1, 2013

Study Completion (Actual)

October 1, 2013

Study Registration Dates

First Submitted

July 12, 2013

First Submitted That Met QC Criteria

July 12, 2013

First Posted (Estimate)

July 16, 2013

Study Record Updates

Last Update Posted (Estimate)

April 21, 2015

Last Update Submitted That Met QC Criteria

April 20, 2015

Last Verified

April 1, 2015

More Information

Terms related to this study

Other Study ID Numbers

  • 2011-A01221-40
  • 2013-18 (Other Identifier: AP HM)

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Clinical Trials on Vestibular-defective Patients

Clinical Trials on electromyography

3
Subscribe