Characterization of Independant Task Neural Correlates of Different Levels of Mental Workload

Study Overview
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Brief Summary
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The goal is to identify neuro-physiological signatures at several levels of mental workload during the realisation of tasks, performed by all the subjects. In parallel, there will be a methodological work consisting to develop the classification algorithms, predictives of these levels of mental workload in real time, in purpose to implement a passive brain-machine interface in the best interest of operators that accomplish complex tasks. Mesures of electro-physiological activity will be recorded in order to approve states of charge in addition to behavioral performances.

Official Title
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Characterization of Independant Task Neural Correlates of Different Levels of Mental Workload

Conditions
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Healthy Volunteer

Intervention / Treatment
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* Other: Electroencephalography and Electrocardiography


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Signed informed consent Medical examination made before search involvement Between 20 and 40 years Right-handed Minimum study level : Baccalauréat Membership of the French social security Normal vision and hearing (or corrected to normal) Exclusion Criteria: Sujects included in a clinical or therapeutic trial in progress Vision or hearing essential disorder Neurological or neuropsychiatric pathology current or gone Drug treatment which could alter brain activity (antidepressants, benzodiazepine, lithium etc) Pregnant, parturient or breast feeding women All other category of protected people

Ages Eligible for Study
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Minimum Age: 20 Years
Maximum Age: 40 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Basic Science
Intervention Model: Single Group Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Other: Healthy volunteers<br>Adults healthy volunteers | Other: Electroencephalography and Electrocardiography<br> <br> |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Electroencephalography (EEG) | With a EEG helmet. Classical Stemberg's task Stemberg's task with time pressure N-back task Mental arithmetic task 13 minutes MATB Multi-Attribute Task Battery : Divided attention task | 10 minutes | 
| Electrooculography (EOG) | Simultaneously to EEG : electrooculography (EOG) will be recorded With a EEG helmet. Classical Stemberg's task Stemberg's task with time pressure N-back task Mental arithmetic task 13 minutes MATB Multi-Attribute Task Battery : Divided attention task | 10 minutes | 
| Subjective and behavioral data | KSS scale to evaluate the patient's state of alertness Classical Stemberg's task Stemberg's task with time pressure N-back task Mental arithmetic task 13 minutes MATB Multi-Attribute Task Battery : Divided attention task | 10 minutes | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Electrocardiography, Electroencephalography, Neural Correlates, Mental Workload