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Dyslexia, Motor Control and Proprioception

Not Applicable
Terminated
Conditions
Dyslexia
Registration Number
NCT03364010
Lead Sponsor
Institut National de la Santé Et de la Recherche Médicale, France
Brief Summary

The investigators hypothesize that children with dyslexia present proprioceptive disorders and the purpose of the present study is to better understand relationships between motor control, proprioception and academic learnings. The investigators compare a group of French students with and without dyslexia aged 10-12.

Detailed Description

2 groups of children (dyslexics and control) will be evaluated on 2 tasks:

* Evaluation of the proprioception: Perception of the speed and Perception of the position

* Evaluation of the motor learning: Estimation of state in the framework of a motor perturbation

Recruitment & Eligibility

Status
TERMINATED
Sex
All
Target Recruitment
56
Inclusion Criteria

Not provided

Exclusion Criteria

Not provided

Study & Design

Study Type
INTERVENTIONAL
Study Design
SINGLE_GROUP
Primary Outcome Measures
NameTimeMethod
Evaluation of proprioception through velocity perception1day

The ability to perceive motion at 3 different velocities for 3 different joints is assessed using a motorized ergometer. A passive movement is performed by the ergometer and children are tasked to press a button as soon as they feel the movement. We calculate the angle of detection for each speed and compare it between Dyslexic and healthy children.

Secondary Outcome Measures
NameTimeMethod
Evaluation of proprioception through position perception1 day

The ability to perceive position is assessed using an ergometer that produces passive movements of 3 different amplitudes on the dominant arm. In a second time, the ergometer produces a passive movement of the same arm and children are tasked to press a button as soon as they feel they are in the exact previously-experienced position. We calculate the angular error and compare it between Dyslexic and healthy children.

Motor learning1 day

The ability to learn new motor tasks is assessed using virtual reality and motor acquisition systems. First we evaluate the motor accuracy and the state estimation by pointing tests. Then visual perturbations are introduced during pointing. Finally, we evaluate motor accuracy and state estimation again.

Text reading1day

The ability to read aloud a text is assessed using the French standardized test " Alouette ", which provide accuracy in reading aloud age-normed texts (ratio between words that have been correctly read and all the words that have been read).

Phonological awareness: phonemic blending and phonemic elision1day

The ability to derive a phonemic pattern from distinct phonemic units or to substitute a phonemic pattern for another is assessed using the French standardized test " Nepsy2, phonological process " which provide standard deviation in reading aloud by the investigator.

Identifying words1day

The ability to identify words is assessed using the French standardized test " Timé3 ", which provide lexical level and delay reading in silent reading age-normed words.

Trial Locations

Locations (1)

Inserm U1093

🇫🇷

Dijon, Bourgogne, France

Inserm U1093
🇫🇷Dijon, Bourgogne, France
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