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

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

Study Overview

• Status: Completed
• Conditions: Healthy Subjects
• Intervention / Treatment: Other: Cognitive tasks

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 Type: Interventional
• Enrollment (Actual): 20
• Phase: Not Applicable

Contacts and Locations

Study Locations

• France
  • Nantes, France, 44093
    • Nantes University Hospital

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 20 years to 50 years (Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

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 Plan

How is the study designed?

Design Details

• Primary Purpose: Basic Science
• Allocation: N/A
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: 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.	Other: 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.

What is the study measuring?

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

Collaborators and Investigators

• Sponsor: Nantes University Hospital
• Investigators: Principal Investigator: Vincent ROUALDES, Doctor, Nantes University Hospital

Study record dates

Study Major Dates

• Study Start (Actual): May 4, 2022
• Primary Completion (Actual): June 23, 2022
• Study Completion (Actual): June 23, 2022

Study Registration Dates

• First Submitted: December 23, 2021
• First Submitted That Met QC Criteria: December 23, 2021
• First Posted (Actual): January 11, 2022

Study Record Updates

• Last Update Posted (Actual): September 27, 2022
• Last Update Submitted That Met QC Criteria: September 26, 2022
• Last Verified: September 1, 2022

More Information

Terms related to this study

• Other Study ID Numbers: RC21_0590

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: No

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No