AIMS: This study investigated the effects of age, sex, and stimulus type (real word in L1, L2 vs. non-word) on oral-DDK rates among healthy Malaysian-Malay speakers in order to establish language- and age-sensitive norms. The second aim was to compared the nonword 'pataka' oral-DDK rates produced by Malaysian-Malay speakers on currently available normative data for Hebrew speakers and Malaysian-Mandarin speakers.
METHODS & PROCEDURES: Oral-DDK performance of 90 participants (aged 20-77 years) using nonword ('pataka'), Malay real word ('patahkan'), and English real word ('buttercake') was audio recorded. The number of syllables produced in 8 seconds was calculated. Mixed analysis of variance (ANOVA) was conducted to examine the effects of stimulus type (nonword, Malay, and English real word), sex (male, female), age (younger, 20-40 years; middle, 41-60 years; older, ≥61 years), and their interactions on the oral-DDK rate. Data obtained were also compared with the raw data of Malaysian-Mandarin and Hebrew speakers from the previous studies.
OUTCOMES & RESULTS: A normative oral-DDK rate has been established for healthy Malaysian-Malay speakers. The oral-DDK rate was significantly affected by stimuli (p
AIMS: This study aims to describe the linguistic strategies that parents employ when interacting with their repaired CL/P child. How parents allocate the next turn of speaking to their repaired CL/P child will be specifically examined.
METHODS & PROCEDURES: Three parent-child pairs with each child having repaired CL/P were selected to participate in the study. Guided by the principles of Conversation Analysis, their everyday interactions in their homes were video-recorded and transcribed according to the Jefferson System of Transcription Notation (2004). The transcriptions were subsequently analysed in order to highlight the linguistic strategies.
OUTCOMES & RESULTS: Three main linguistic strategies are identified in the parents' turns when they allocate the next turn of speaking to their repaired CL/P child. Specifically, parents' turns are constructed through interrogative sentences in addition to using emphasis words and repeated elicitation of responses from their child.
CONCLUSION & IMPLICATIONS: Parents' linguistic strategies are found to be restrictive as they limit children's active participation. Consequently, the interaction becomes asynchronous rather than synchronous, which could otherwise benefit children's language development. Findings provide information on how parents can be supported in order to foster a positive growth of the children's language development through everyday interactions.
WHAT THIS PAPER ADDS: What is already known on the subject Even after repair surgery, children with CL/P may experience poor language performance that is not limited to inaccuracies in speech articulation. Studies within the area of pragmatics have consistently shown the CL/P children to be passive interlocutors. What this paper adds to existing knowledge This study describes the linguistic strategies employed by parents when they allocate the next turn of speaking to their repaired CL/P child. Parents are found to employ three main strategies: framing the turn into an interrogative sentence, deploying emphasis words and repeatedly eliciting responses. The findings suggest that such strategies limit the interactions, making them asynchronous and potentially unconducive to the positive growth of the child's language development. What are the potential or actual clinical implications of this work? In addition to providing speech treatment to children affected with CL/P, parents, especially those belonging to collectivist groups that are sympathetic to authoritarian parenting styles, can also be informed or trained on other ways to communicate with such individuals.
AIMS: To explore the effect of gender, stimuli type and PD status and their interactions on the O-DDK rates among Malaysian-Malay speakers.
METHODS & PROCEDURES: O-DDK performance of 62 participants (29 individuals with PD and 33 healthy elderly) using a non-word ('pataka'), a Malay real-word ('patahkan') and an English real-word ('buttercake') was audio recorded. The number of syllables produced in 8 s was counted. A hierarchical linear modelling was performed to investigate the effects of stimuli type (non-word, Malay real-word, English real-word), PD status (yes, no), gender (male, female) and their interactions on the O-DDK rate. The model accounted for participants' age as well as the nesting of repeated measurements within participants, thereby providing unbiased estimates of the effects.
OUTCOMES & RESULTS: The stimuli effect was significant (p < 0.0001). Malay real-word showed the lowest O-DDK rate (5.03 ± 0.11 syllables/s), followed by English real-word (5.25 ± 0.11 syllables/s) and non-word (5.42 ± 0.11 syllables/s). Individuals with PD showed a significantly lower O-DDK rate compared to healthy elderly (4.73 ± 0.15 syllables/s vs. 5.74 ± 0.14 syllables/s, adjusted p < 0.001). A subsequent analysis indicated that the O-DDK rate declined in a quadratic pattern. However, neither gender nor age effects were observed. Additionally, no significant two-way interactions were found between stimuli type, PD status and gender (all p > 0.05). Therefore, the choice of stimuli type has no or only limited effect considering the use of O-DDK tests in clinical practice for diagnostic purposes.
CONCLUSIONS & IMPLICATIONS: The observed slowness in O-DDK among individuals with PD can be attributed to the impact of the movement disorder, specifically bradykinesia, on the physiological aspects of speech production. Speech-language pathologists can gain insights into the impact of PD on speech production and tailor appropriate intervention strategies to address the specific needs of individuals with PD according to disease stages.
WHAT THIS PAPER ADDS: What is already known on this subject The observed slowness in O-DDK rates among individuals with PD may stem from the movement disorder's effects on the physiological aspects of speech production, particularly bradykinesia. However, there is a lack of consistent evidence regarding the influence of real-word repetition and how O-DDK rates vary across different PD stages. What this study adds to existing knowledge The O-DDK rates decline in a quadratic pattern as the PD progresses. The research provides insights into the advantage of real-word repetition in assessing O-DDK rates, with Malay real-word showing the lowest O-DDK rate, followed by English real-word and non-word. What are the potential or actual clinical implications of this work? Speech-language pathologists can better understand the evolving nature of speech motor impairments as PD progresses. This insight enables them to design targeted intervention strategies that are sensitive to the specific needs and challenges associated with each PD stage. This finding can guide clinicians in selecting appropriate assessment tools for evaluating speech motor function in PD patients.