This study investigates medial gemination patterns in Lebanese Arabic (LA). It offers an account of the duration patterns of quantity distinction for vowels and consonants in LA by using the most comprehensive dataset for this variety, and for Arabic in general, so far in terms of the number of speakers (20), the consonant types examined (24), the inspection of vowels preceding and following the consonant in durational analyses, and the inclusion of male and female speakers. The main aim is to show correspondence between phonetic timing in LA and phonological accounts of syllabic structure that are based on moraic weight (Hayes 1989; Broselow 1995; McCarthy and Prince 1995). The study extends predictions of mora-sharing in disyllables with medial clusters that are preceded by a long vowel (e.g., /ˈmaal.ħa/ ‘salty-FEM-SG’) to comparable syllables with a medial geminate (e.g., /ˈmaal.la/ ‘bored-FEM-SG’), which have not been investigated in Arabic before. It shows that vowel shortening preceding medial geminates affects phonologically long but not short vowels, downplaying the commonly referred to closed-syllable shortening effect as the main reason for this phenomenon (Maddieson 1997). Instead, an account based on the interface between phonetic and phonological effects on compensatory vowel shortening offers better predictions.
Recent empirical studies have highlighted the large degree of analytic flexibility in data analysis that can lead to substantially different conclusions based on the same data set. Thus, researchers have expressed their concerns that these researcher degrees of freedom might facilitate bias and can lead to claims that do not stand the test of time. Even greater flexibility is to be expected in fields in which the primary data lend themselves to a variety of possible operationalizations. The multidimensional, temporally extended nature of speech constitutes an ideal testing ground for assessing the variability in analytic approaches, which derives not only from aspects of statistical modeling but also from decisions regarding the quantification of the measured behavior. In this study, we gave the same speech-production data set to 46 teams of researchers and asked them to answer the same research question, resulting in substantial variability in reported effect sizes and their interpretation. Using Bayesian meta-analytic tools, we further found little to no evidence that the observed variability can be explained by analysts’ prior beliefs, expertise, or the perceived quality of their analyses. In light of this idiosyncratic variability, we recommend that researchers more transparently share details of their analysis, strengthen the link between theoretical construct and quantitative system, and calibrate their (un)certainty in their conclusions.
3 May 2021 in International Journal of Language & Communication Disorders
Background: The current literature suggests a link between dummy (or pacifier) use and a number of both positive and detrimental consequences. Positive consequences include soothing effect and protection from sudden infant death syndrome (SIDS), while negative ones include increased risk of otitis media and dental malformation. However, there is little research surrounding the impact of dummy use on the development of speech sounds.Aims: To investigate whether duration (in number of months) and frequency per day of dummy use have an individual or combined effect on the development of a child's speech, and if so, in what way.Methods & Procedures: A total of 100 British‐English children aged 24–61 months and growing up in the UK were recruited through nurseries, playgroups and by word of mouth. Their parents were asked to complete a questionnaire about the duration and frequency of dummy use and factors known to influence the development of speech. Following this, the children's speech was assessed using the phonology section of the Diagnostic Evaluation of Articulation and Phonology (DEAP). Analysis of the DEAP was conducted to determine the percentage of consonants correct, number of age‐appropriate, delayed and atypical errors. Dummy use and speech outcome measures were then analysed qualitatively and quantitatively using mean and median group comparisons alongside multivariate generalized least squares and generalized negative binomial modelling approaches to test for significant associations.Outcomes & Results: The results showed that the majority of speech outcomes are not significantly associated with dummy use, however measured, in bivariate or multivariate analyses. However, there is a significant association between increased atypical errors and greater frequency of daytime dummy use. This association is strengthened by restricted sampling within the younger members of the sample, with this association not observable within children older than 38 months, the median sample age.Conclusions & Implications: The evidence base for any effects of dummy use on speech is very small. Dummy use may increase the number of atypical speech errors a young child makes. However, only the frequency of daytime use seems relevant, not the duration or night‐time use, and these errors may resolve over time. What this paper adds: What is already known on this subject: The use of a dummy with infants in Western countries is comparatively high (between 36‐85%). A number of positive and detrimental consequences of dummy use have been documented in the literature; however, research on the effect of dummy use on speech development is significantly lacking. Past studies have included small sample sizes or used single measures of speech outcomes, which may not be specific enough to reveal how speech may be affected. Many speech and language therapists speculate that the use of a dummy could be contributing to many of the conditions they treat, yet this claim remains largely unsubstantiated. Clinical implications of this study: The study suggests that only prolonged use of a dummy over several hours and during the day may start to show any impact on speech; even then, professionals need to be aware that the evidence base for any speech effects is very small. Clinicians and other professionals who parents consult on dummy use should make sure to provide both the pros and cons of dummy use, in order to enable parents to make an informed decision.
21 November 2022 in International Journal of Speech-Language Pathology
Purpose: This commentary describes a multi-national project which addresses gaps in the design and delivery of health and education services in Arabic-speaking countries in relation to early language development, with a focus on Egypt, Jordan, Lebanon and the Palestinian Territories. This includes: (1) co-production with early years professionals and NGOs of approaches to support early language development; (2) development and standardisation of tools to identify monolingual and multilingual Arabic-speaking children at risk of poor language development; and (3) examination of language development in refugee communities. Result: The importance of inter-professional partnership and the inclusion of families in planning support for oral language development is highlighted. Arabic versions of the Communicative Development Inventory (CDI) Toddler were developed, and data collected from 1074 Egyptian, Jordanian and Palestinian monolingual infants aged 8–30 months. Data from 201 age-matched Palestinian infants in Lebanese refugee camps highlight inequalities resulting from limited maternal educational opportunities. Data from 230 multilingual Lebanese 2-year-olds enable the interpretation of CDI scores as a function of language exposure. Conclusion: This work contributes to the promotion of robust language development for all Arabic-speaking children. This commentary focusses on sustainable development goal (SDG) 3, SDG 4, SDG 10 and SDG 17.
Aim: This paper presents the auditory and acoustic investigations of pharyngeal consonants in Iraqi Arabic (IA). While the contested place and manner of articulation of these sounds have been the subject of investigation in many studies, the focus here is novel: we set out to investigate the extent to which pharyngeals in IA are accompanied by auditory nasalisation and how widespread the effect is across oral and nasal contexts. Methods: Auditory and acoustic properties of nasalization, as produced by nine male speakers of IA, were investigated in target words with oral, nasal, and pharyngeal environments. Results: When combined with oral consonants, pharyngeals exhibit little or no nasalisation; however, when pharyngeal are combined with nasals, they exhibit various degrees of nasalisation, sometimes beyond what is found for a nasal environment alone. This is especially so for voiced pharyngeals, which display more nasalisation than their voiceless counterparts. A principle component analysis combining all the acoustic correlates examined demonstrates a definite contribution of pharyngeals to the presence of nasalisation. Conclusion: The epilaryngeal constriction and variability in the articulation of pharyngeals are thought to be responsible for the nasalisation effect and may act as potential drivers for sound change in IA pharyngeals.