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Study of Hierarchy of Afferents in Postural Control of Children With Dyslexia (EQUIDYS)

C

Central Hospital, Nancy, France

Status

Completed

Conditions

Dyslexia

Treatments

Other: Questionnaire of motion sickness susceptibility
Other: Posturographic tests

Study type

Interventional

Funder types

Other

Identifiers

NCT02879786
2011-A00139-32

Details and patient eligibility

About

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.

Full description

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.

Enrollment

68 patients

Sex

All

Ages

8 to 13 years old

Volunteers

Accepts Healthy Volunteers

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

Trial design

Primary purpose

Diagnostic

Allocation

Non-Randomized

Interventional model

Parallel Assignment

Masking

None (Open label)

68 participants in 3 patient groups

Phonological dyslexia
Experimental group
Description:
Children with phonological dyslexia
Treatment:
Other: Questionnaire of motion sickness susceptibility
Other: Posturographic tests
Visuo-attentional dyslexia
Experimental group
Description:
Children with visuo-attentional dyslexia
Treatment:
Other: Questionnaire of motion sickness susceptibility
Other: Posturographic tests
Control
Other group
Description:
Control children, age-matched
Treatment:
Other: Questionnaire of motion sickness susceptibility
Other: Posturographic tests

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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