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Measure of Fatigue in Functional MRI

NCT02379013 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 37

Last updated 2017-02-13

No results posted yet for this study

Summary

The purpose of this study is to determine more objective, central and peripheral indices of fatigue state by exploring the neural and behavioral correlates of the alert process while keeping the idea to corroborate these results with those obtained during the performance of physical exercises and neuropsychological tests "classics" of attention, motivation, and functions evaluation. The interest of this study is to manipulate and compare the phasic and tonic alert mechanism through the activation of an extrinsic motivational system during fatigue. The investigators have chosen the alert since it is a basic cognitive process defined as the ability to increase attentional resources with the expectation of a target stimulus resulting in reduced response time. It can be phasic (extrinsic), favored by the presence of a warning signal preceding the target (preparation time) or tonic (intrinsic) occurring without warning signal (wakefulness). The evaluation of the alert is classically realized by a simple reaction time task with the presence or not of warning signal soliciting wether the tonic alert or the phasic alert.

The investigators suppose to revisit the healthy population with brain model alert issued in 2010 which highlighted the predominant role of the regions of the dorsolateral prefrontal cortex, parietal, cingulate and thalamus (non-motor) in maintaining attention and temporal preparation alert task.

The investigators identify also functional, motor and cognitive components of basal ganglia of thalamus. Cognitive-motor paradigm and neurological dysfunctions observed in multiple sclerosis population will help to identify and separate the cognitive role and motor brain regions, particularly the thalamus and basal ganglia. New neurological hypotheses are proposed

Conditions

Interventions

PROCEDURE

Volunteer with MRI

functional MRI

Sponsors & Collaborators

  • Paris West University Nanterre La Défense

    collaborator OTHER

  • Hôpital NOVO

    lead OTHER

Principal Investigators

  • Alain LE BLANCHE, PUPH · Hôpital NOVO

Study Design

Allocation
NA
Purpose
BASIC_SCIENCE
Masking
NONE
Model
SINGLE_GROUP

Eligibility

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

Timeline & Regulatory

Start
2015-02-28
Primary Completion
2015-11-30
Completion
2015-11-30

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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 NCT02379013 on ClinicalTrials.gov