Childhood Apraxia of Speech
Conditions
Brief summary
The proposed study aims to investigate the efficacy of the Dynamic Temporal and Tactile Cueing treatment in Cantonese-English bilingual speakers with childhood apraxia of speech.
Detailed description
Four CE children with CAS will be recruited and receive two versions of the DTTC treatment (i.e., DTTC in English \[DTTC-E\] and DTTC in Cantonese \[DTTC-C\]). After the initial assessment and baseline probe sessions, all the participants will be randomly assigned to receive either DTTC-E or DTTC-C in the first 6-week treatment phase. Then, the between-treatment probe sessions will be conducted during a 2-week washout period. This will be followed by the second 6-week treatment phase, which will be the other version of DTTC. Post-treatment probe sessions will be conducted one week and one month after completion of the second treatment. Participants' speech productions will be transcribed and evaluated based on their accuracy in phonemes, stress, and tone. Growth curve analysis (Mirman, 2014) will be conducted to examine the group differences in the outcome measures across the treatment sessions.
Interventions
DTTC is a motor-based treatment designed for children with CAS who may have limited verbal output. It applies the principles of motor learning and focuses on speech movement gestures in the context of functional words and phrases. The participants will receive two versions of the DTTC treatment (i.e., DTTC in English \[DTTC-E\] and DTTC in Cantonese \[DTTC-C\]), where probe data will be collected before, during, between and after the treatment intervention.
Sponsors
University of Vermont
The University of Hong Kong
The Hong Kong Polytechnic University
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
3 Years to 11 Years
Healthy volunteers
No
Inclusion criteria
* (1) 3;0 - 11;11 (years;months) years of age at treatment commencement; * (2) speak both Cantonese and English: One caregiver one language for at least one year; speaking different languages at home versus school; and/or speak different languages at different times of day; * (3) no concomitant developmental disorders including autism spectrum disorder; * (4) no structural abnormalities that affect speech, such as cleft lip and/or palate; * (5) no uncorrected vision impairment; and * (6) no hearing loss; * (7) CAS diagnosis confirmed by the research team based on the available diagnostic criteria in Cantonese speakers, which will be described in the next section
Exclusion criteria
\-
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Phonemes accuracy | Change Before, Between, 1-week and 5-week post DTTC treatment | Participants' performance is probe sessions will be transcribed and analysed by an independent research assistant who has experience with Cantonese and English disordered speech will undergo training in phonetic transcription. The training will include practicing transcription of Cantonese and English speech of preschool children on standardized articulation tests. The accuracy of phonemes and the following aspects will be judged by the research assistant. |
| Stress accuracy | Change Before, Between, 1-week and 5-week post DTTC treatment | Participants' performance is probe sessions will be transcribed and analysed by an independent research assistant who has experience with Cantonese and English disordered speech will undergo training in phonetic transcription. The training will include practicing transcription of Cantonese and English speech of preschool children on standardized articulation tests. The accuracy of phonemes and the following aspects will be judged by the research assistant. |
| Tone accuracy | Change Before, Between, 1-week and 5-week post DTTC treatment | Participants' performance is probe sessions will be transcribed and analysed by an independent research assistant who has experience with Cantonese and English disordered speech will undergo training in phonetic transcription. The training will include practicing transcription of Cantonese and English speech of preschool children on standardized articulation tests. The accuracy of phonemes and the following aspects will be judged by the research assistant. |
Countries
Hong Kong
Contacts
Primary ContactEddy Wong, PhD
Backup ContactMin Ney Wong, PhD
Outcome results
None listed