Are you healthy and looking to help advance medical science?

You may be eligible to participate in a dyslexia clinical study, and could be compensated for your time.

Are you healthy and looking to help advance medical science? You may be eligible to participate in a dyslexia clinical study, and could be compensated for your time.

What is a clinical trial? Is participating in a clinical trial right for you? Learn more

Dyslexia Clinical Trial in Dijon Bourgogne

NCT03364010 | Interventional

Are you healthy and looking to help advance medical science?

You may be eligible to participate in a dyslexia clinical study, and could be compensated for your time.

Are you healthy and looking to help advance medical science? You may be eligible to participate in a dyslexia clinical study, and could be compensated for your time.

Terminated

Male & Female

10 - 12

Years old

This study has recruited 56 Participants

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.

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Details for the study

Brief Title

Dyslexia, Motor Control and Proprioception

Official Title

Relationships Between Proprioception, Motor Control and Reading in Children With Dyslexia

Brief Summary

The investigators hypothesize that children with dyslexia present proprioceptive disorders <br /> and the purpose of the present study is to better understand relationships between motor <br /> control, proprioception and academic learnings. The investigators compare a group of French <br /> 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

Treatments and/or Procedures

Evaluation of motor learning

Motor accurancy and State Estimation with visual perturbations

Evaluation of written language

Text reading, Identifying words and Phonological awareness: phonemic blending and phonemic elision

Evaluation of proprioception

Velocity perception and Position perception

Outcome Measures

Outcome measures are the tests that investigators perform to prove whether or not a treatment being tested in a clinical trial is having any effect.

Primary

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

Secondary

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.

1 day

Secondary

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

Secondary

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

Secondary

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

Secondary

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

Study Criteria

Inclusion criteria for all children

  -  Child with a French social security

  -  School child

  -  Native French speaker

  -  right-handed

  -  Normal or corrected vision

  -  Without neurological or psychiatric histories

  -  Agree to participate in the study in agreement with parental rights representatives

For the dyslexic group :

  -  pluridisciplinary diagnostic

  -  never consulted for proprioception before

  -  without any other leaning disorders like dysphasia

  -  attention deficit hyperactivity disorder (ADHD) or developmental coordination disorder
     (DCD)

For the control group :

  -  regular school attendance

  -  never consulted for learning disabilities

  -  No learning disorders known for their parents or siblings.

Exclusion criteria for all children

  -  genetic disorder

  -  neurological or psychiatric history

  -  Delayed psychomotor development

  -  Reeducation or current treatment interfering with the evaluation