Modeling Variation of the Objective Mental Workload for Tasks Requiring Different Cognitive Functions.

Study Overview
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Brief Summary
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This study focuses on the identification of objective mental workload (through ElectroEncephaloGraphy) during tasks involving different cognitive functions.

Detailed Description
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In a medical context based on the solicitation of various cognitive functions, it is essential to be able to modulate the level of difficulty of the task, to maintain a constant level of mental workload while preserving the playful aspect of the activity. This must be sufficient to maintain the person's involvement without inducing too high a mental workload. However, currently, there is no standardized model of variation of mental workload for cognitive tasks that could be used to modulate the difficulty. The present study is therefore part of this context and concerns the identification of the mental workload during tasks requiring cognitive functions such as memory or attention. Further this study will allow to adapt in real time the difficulty of virtual tasks to the mental workload of people. In other words, to have a universal brain decoder of the mental workload.

Official Title
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Modeling Variation of the Objective Mental Workload for Tasks Requiring Different Cognitive Functions.

Conditions
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Healthy Subjects

Intervention / Treatment
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* Other: Cognitive tasks


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Age> 20 years old and <50 years old French-speaking men or women Fluent in French (native speaker or fluent) Hold at least a baccalaureate +2 Right-handed Having normal or corrected to normal vision Having normal or corrected to normal hearing Exclusion Criteria: Minors Adults under guardianship or curatorship Non-French speakers Sleep debt at the time of the experience Daltonism Vision and hearing uncorrected to normal Pregnant or breastfeeding women History of associated cranial trauma or any other neurological pathology altering the cerebral sensory-motor system or the cognitive capacities and higher functions.

Ages Eligible for Study
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Minimum Age: 20 Years
Maximum Age: 50 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 |
| --- | --- |
| Experimental: Cognitive tasks<br>Electroencephalographic signals registration during different levels of difficulty of three tasks requiring very distinct cognitive functions: the updating of verbal memory, visuospatial span and mental motor inhibition. | Other: Cognitive tasks<br>* Electroencephalographic signals registration during different levels of difficulty of three tasks requiring very distinct cognitive functions: the updating of verbal memory, visuospatial span and mental motor inhibition.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Identification of the variation in mental workload for different cognitive tasks. | Concomitant evolution in healthy volunteers of the ElectroEncephaloGraphic (EEG) signals and of the subjective mental workload for different levels of difficulty of three tasks requiring very distinct cognitive functions: the updating of verbal memory, visuospatial span and mental motor inhibition. | Day 1 | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Analysis of the influence of the quantity of EEG signals analyzed by our brain decoder on its accuracy |  | Day 1 |