Developmental Language Difficulties: Behavioural and Electrophysiological Studies (LANGAGE)

Lille Catholic University

Status

Completed

Conditions

Dysphasia

Dyslexia

Treatments

Behavioral: auditory lexical decision task

Device: electroencephalogram

Study type

Observational

Funder types

Other

Identifiers

NCT02872870

RC-P0020

Details and patient eligibility

About

This study will help to better characterize oral and written language disorders and determine if these disorders are continuous or not. The participants ( dyslexic and dysphasic patients and control adults) will carry out an auditory lexical decision task during which an electroencephalogram (EEG) will be recorded.

Enrollment

196 patients

Sex

All

Ages

8+ years old

Volunteers

Accepts Healthy Volunteers

Inclusion and exclusion criteria

Inclusion Criteria (patients):

Non-verbal intelligence quotient (IQ) less than 85 according to the Wechsler Intelligence Scale for Children (WISC) perceptual index
Specific oral language disorders diagnosed by the multidisciplinary team (neurologist, psychologist, speech therapist): understanding language deficit, estimated by the test SCOTLAND (Lecocq, 1996) and / or vocabulary test (Dunn Thiébaud).
Specific written language disorders (dyslexia) diagnosed by a multidisciplinary team according to a test that can objectify the late reading (Alouette) and locate deficits (EVALEC)
Be affiliated to a social security regimen
Have signed an informed consent or signed by the parents if the patient is minor
Aged at least 8 years old

Inclusion Criteria (controls)

Non-deficit (>85) non-verbal Wechsler Scale (codes and matrices)
No specific oral language disorders
No specific written language disorders (dyslexia)
Be affiliated to a social security regimen
Have signed an informed consent or signed by the parents if the patient is minor
Aged at least 8 years old

Exclusion Criteria:

Mother tongue other than French
Non-verbal reasoning abilities below 85 measured by the WISC 4 (for patients only) and Non-verbal capacities of reasoning lower than the normal measured by the non-verbal scale of Wechsler (for controls only)
Presence of pervasive developmental disorders
No affiliation to a social security regimen
Absence of signature of the informed consent
Subject of less than 8 years