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

Not Applicable

Completed

• Conditions: Healthy Subjects
• Interventions: Other: Cognitive tasks

• Registration Number: NCT05185102
• Lead Sponsor: Nantes University Hospital

Brief Summary

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

Detailed Description

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.

Study Timeline

• Study First Submitted: 2021-12-23
• Study First Submitted QC: 2021-12-23
• Study First Posted: 2022-01-11
• Study Start: 2022-05-04
• Primary Completion: 2022-06-23
• Study Completion: 2022-06-23
• Status Verified: 2022-09
• Last Update Submitted: 2022-09-26
• Last Update Posted: 2022-09-27

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 20

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.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
Cognitive tasks	Cognitive tasks	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.

Primary Outcome Measures

Name	Time	Method
Identification of the variation in mental workload for different cognitive tasks.	Day 1	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.

Secondary Outcome Measures

Name	Time	Method
Analysis of the influence of the quantity of EEG signals analyzed by our brain decoder on its accuracy	Day 1

Trial Locations

Locations (1)

Nantes University Hospital; 🇫🇷 Nantes, France