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| ID | Type | Description | Link |
|---|---|---|---|
| 2017-A01547-46 | Registry Identifier | RCB |
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Suspension due to COVID-19
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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.
2 groups of children (dyslexics and control) will be evaluated on 2 tasks:
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Dyslexic and non dyslexic Children | Experimental | Children aged 10-12 Evaluation of proprioception Evaluation of motor learning Evaluation of written language |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Evaluation of proprioception | Behavioral | Velocity perception and Position perception |
|
| Measure | Description | Time Frame |
|---|---|---|
| Evaluation of proprioception through velocity perception | 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. | 1day |
| Measure | Description | Time Frame |
|---|---|---|
| Evaluation of proprioception through position perception | 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. |
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Inclusion criteria for all children
For the dyslexic group :
For the control group :
Exclusion criteria for all children
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| Name | Affiliation | Role |
|---|---|---|
| Patrick QUERCIA, dr | Unité Inserm d'affiliation : Laboratoire U1093 Cognition, Action et Plasticité Sensorimotrice | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Inserm U1093 | Dijon | Bourgogne-Franche-Comté | 21000 | France |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 33431949 | Result | Laprevotte J, Papaxanthis C, Saltarelli S, Quercia P, Gaveau J. Movement detection thresholds reveal proprioceptive impairments in developmental dyslexia. Sci Rep. 2021 Jan 11;11(1):299. doi: 10.1038/s41598-020-79612-4. |
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| ID | Term |
|---|---|
| D004410 | Dyslexia |
| ID | Term |
|---|---|
| D007806 | Language Disorders |
| D003147 | Communication Disorders |
| D019954 | Neurobehavioral Manifestations |
| D009461 | Neurologic Manifestations |
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| Evaluation of motor learning | Behavioral | Motor accurancy and State Estimation with visual perturbations |
|
| Evaluation of written language | Behavioral | Text reading, Identifying words and Phonological awareness: phonemic blending and phonemic elision |
|
| 1 day |
| Motor learning | 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. | 1 day |
| Text reading | 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). | 1day |
| Phonological awareness: phonemic blending and phonemic elision | 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. | 1day |
| Identifying words | 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. | 1day |
| D009422 | Nervous System Diseases |
| D000067559 | Specific Learning Disorder |
| D007859 | Learning Disabilities |
| D012816 | Signs and Symptoms |
| D013568 | Pathological Conditions, Signs and Symptoms |
| D065886 | Neurodevelopmental Disorders |
| D001523 | Mental Disorders |