Articulation Flashcards
What is Articulation?
The ability to produce sounds in sequence by moving the articulators is called articulation. What are the articulators? Tongue Lips Jaw Hard palate Soft palate (velum) Often interchanged with a phonological disorder.
Prevelance
4% of children have an articulation disorder
Affects boys more than girls
60% are of unknown causes
40% associated with middle ear infections, developmental disorders e.g MR, Downs Syndrome, Cerebral Palsy
How do we classify sounds?
International Phonetic Alphabet (IPA)
Phonetic Alphabet describes and classifies each sound by how and where it is produced in the speech mechanisms
Classifies both vowels and consonants
Each sound is represented by a symbol
Transcription is usually between / /
Articulation Disorders
Characterized in four ways: Substitutions Occur when one standard phoneme is substituted for another e.g. wabbit for rabbit Omissions Occur when a phoneme is deleted e.g. abbit for rabbit Distortions Occur when a non-standard phoneme is used – non-recognizable sound Additions Occur when a phoneme is added to a word e.g. chuair for chair
Speech Intelligibility
Refers to how easy it is to understand the individual
Somewhat subjective
Can be based on a % of intelligibility
May depend on:
Familiarity of the speaker
Number and types of sound errors
Environmental factors e.g. background noise
Articulation -Hearing Impairments
Hearing is the primary way in which a child acquires speech sounds
Important to remember:
Hearing loss not only limits the ability to hear others, but limits the ability to hear themselves and monitor their own speech production
Children with hearing loss will also have difficulty with:
Pitch
Rate
Rhythm
Articulation – Cleft Palate
4th most frequent birth defect
Approximately 1/750 live births
50% - both lip and palate
25% palate only
25%lip only (either 1 or both sides)
Six weeks after conception structures that form the roof of the mouth have grown close together and begin the process of uniting with one another
Union of the lip forms after the palate (9 weeks), so a child can have an intact palate but a cleft lip
Articulation – Cleft Palate – speech difficulties
Most amount of difficulty with sounds requiring a build-up of pressure in the oral cavity e.g. p, b, t, d, s, sh
Vowels are accompanied by inappropriate resonance
Consonants can result in audible air escaping through the nose – nasal emissions, which can almost sound like a snort
Articulation – Cleft Palate - Other Symptoms
Misaligned teeth Changes on the shape of the nose Feeding/sucking problems Flow of liquids/solids through nasal passages Failure to gain weight/poor growth Recurrent ear infections
Articulation – Cleft Palate - Surgical Care
Cleft lip usually repaired within the first 3 months of life
Cleft palate usually repaired within at approximately 12 months of age
80-90% of repairs will be successful
10-20% may need additional surgery