Down Syndrome (Trisomy 21): Speech Therapy Support
The Down syndrome (trisomy 21) is the most common genetic cause of intellectual disability. Affected individuals exhibit a specific language profile with strengths (social communication, comprehension) and difficulties (expression, articulation, morphosyntax). Early and prolonged speech therapy support significantly improves communication skills.
💛 Resources for Support
Visual aids, communication tools, adapted exercises
Access the tools →📋 Table of Contents
Specific Language Profile
Individuals with trisomy 21 exhibit a characteristic language profile, with a dissociation between comprehension (relatively preserved) and expression (more difficult). This profile is linked to anatomical, cognitive, and sensory factors.
Factors Influencing Language
- Anatomical: muscle hypotonia, relative macroglossia, narrow palate, dental peculiarities
- Sensory: frequent ear infections, hearing loss (50-80% of cases), visual disorders
- Cognitive: variable intellectual disability, short-term verbal memory difficulties
- Motor: frequent speech apraxia, coordination difficulties
Strengths and Difficulties
| Strengths | Difficulties |
|---|---|
| Vocabulary comprehension | Verbal expression |
| Non-verbal communication (gestures, expressions) | Articulation, intelligibility |
| Social skills, desire to communicate | Morphosyntax, complex sentences |
| Visual memory | Short-term auditory memory |
| Learning by imitation | Rapid auditory processing |
| Reading (sometimes) | Phonological awareness |
Language Development
Language development follows the same stages as in typical children, but with a slower pace and an increasing gap with age.
Key Stages
- Babbling: delayed, often around 9-12 months (vs 6-8 months)
- First Words: around 18-24 months on average (great variability)
- Word Combinations: around 3-4 years
- Sentences: slow development, often simple sentences
💡 The Importance of Signs
Gestures and signs (from LSF or Makaton) are particularly beneficial for children with trisomy 21. They leverage their visual strengths, support communication while waiting for oral language development, and do not delay the onset of speech (on the contrary, they facilitate it).
Oral Skills and Feeding
Hypotonia and anatomical peculiarities can lead to feeding difficulties from birth:
- Weak sucking in infants
- Difficult chewing (hypotonia, coordination)
- Sometimes immature swallowing
- Drooling related to lip hypotonia
Support for oral skills is part of early speech therapy management.
Speech Therapy Intervention
Early Intervention
Speech therapy should begin as early as the first months of life: parental guidance, stimulation of oral skills, awakening to communication. The earlier the intervention, the better the outcomes.
Areas of Focus
Early Communication: joint attention, turn-taking, imitation, communicative gestures, signs.
Oral Skills: feeding, oro-facial tone, sensitivity, praxis.
Oral Language: vocabulary (with visual support), morphosyntax, narration.
Articulation and Speech: intelligibility, rhythm, prosody. Attention to frequent apraxia.
Written Language: reading can be a support for oral language (global method, then analytical).
Pedagogical Adaptations
- Systematic visual supports: images, pictograms, signs
- Short and concrete instructions
- Repetition and routine
- Manipulation and active learning
- Latency time: allow time to respond
- Positive reinforcement
Our Downloadable Tools
💬 Communication Pictograms
Pictogram bank to support communication.
Download📅 Visual Schedule
To structure the day and activities.
Download🖼️ Daily Imagery
Images to develop vocabulary.
Download👅 Oro-facial Praxies
Exercises for oro-facial tone.
DownloadFrequently Asked Questions
No, on the contrary. Research shows that signs facilitate the emergence of oral language in children with trisomy 21. They allow communication while waiting for speech to develop, reduce frustration, and serve as a "bridge" to oral language. Children naturally abandon signs when they can express themselves verbally.
Speech therapy can be beneficial throughout life, with goals adapted to each stage: early communication, oral language, reading, maintaining skills, professional communication... Intensity varies according to periods and needs. Even in adulthood, progress is possible.
Yes, many individuals with trisomy 21 learn to read, sometimes at a good level. Reading can even be a support for oral language (written words are stable, unlike heard words). An approach combining global and analytical methods, with plenty of visual supports, yields good results.
💛 Supporting Trisomy 21
Discover all our adapted free tools
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