Study of Hierarchy of Afferents in Postural Control of Children With Dyslexia

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

68 participants

Study Classification

INTERVENTIONAL

Study Start Date

2011-07-31

Study Completion Date

2015-06-30

Brief Summary

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The purpose is to determine the hierarchy of sensory afferents according to different forms of dyslexia in children.

The secondary purpose is to determine sensitive and sufficiently specific posturographic indexes for standard diagnosis of different types of dyslexia.

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Detailed Description

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This study evaluates the postural control and the importance of proprioception, evaluated by static and dynamic posturography, in dyslexic children compared to age-matched control group. Posturographic data and a questionnaire for motion sickness disorder are used as proprioceptive disorder index. This study aims to better characterize the dyslexic population with techniques targeting central integration of sensory proprioceptive afferents. The purpose of this study is not to search for a postural deficiency syndrome, but to study proprioception with posturography, with quantitative and normalized data of analyzed population. Moreover, these data could allow an objective evaluation of reeducation with quantifiable and reproducible parameters in order to judge its effectiveness. The demonstration of the existence of a relationship between proprioceptive disorders and dyslexia will imply a specific reeducation care of patients. A study using validated and standard indexes is necessary. The presence of postural disorders and a major susceptibility to motion sickness could contribute to distinguish different forms of dyslexia and thus be complementary to actual medical, orthophonic and neuropsychological criteria. In this evaluation, it is important to distinguish between visuo-attentional dyslexia from phonological dyslexia involving distinct anatomo-functional neuronal circuits.

Conditions

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Dyslexia

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

NONE

Study Groups

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Phonological dyslexia

Children with phonological dyslexia

Group Type EXPERIMENTAL

Posturographic tests

Intervention Type OTHER

Questionnaire of motion sickness susceptibility

Intervention Type OTHER

Visuo-attentional dyslexia

Children with visuo-attentional dyslexia

Group Type EXPERIMENTAL

Posturographic tests

Intervention Type OTHER

Questionnaire of motion sickness susceptibility

Intervention Type OTHER

Control

Control children, age-matched

Group Type OTHER

Posturographic tests

Intervention Type OTHER

Questionnaire of motion sickness susceptibility

Intervention Type OTHER

Interventions

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Posturographic tests

Intervention Type OTHER

Questionnaire of motion sickness susceptibility

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

All:

* Parents of child and child having given informed consent
* Affiliation to social security
* Preliminary medical examination

Dyslexia groups:

\- Diagnosed and characterized dyslexia

Exclusion Criteria

All:

* Medical pathology, especially neurological, ophthalmological, otorhinolaryngological or orthopedic, modifying postural control, detected with medical examination
* Insufficient compliance of child especially due to fatigue
* Contact allergy to cutaneous electrodes
* Current treatments: psychotropic drugs and all drugs diminishing awareness or causing dizziness or equilibrium disorders

Control group:

\- Patient having a dyslexia or oral or written language disorder

Minimum Eligible Age

8 Years

Maximum Eligible Age

13 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes