Cantonese Speakers Research Articles

Identifying Pronunciation Challenges for Cantonese EFL Learners: A Focus on Intelligibility

This study investigates the intelligibility of Cantonese-accented English by examining segmental pronunciation errors and their impact on native English listeners’ ability to accurately transcribe spoken sentences. Building on a previous production experiment, this research focuses on identifying which vowel and consonant mispronunciations most hinder intelligibility. Ten native English listeners transcribed 1,000 sentences produced by Cantonese speakers, and transcription accuracy was calculated for each target sound. The results reveal that dark /l/ (e.g., “cold”), final consonants like /g/ (e.g., “bag”), and the vowel /æ/ (e.g., “pan”) had the lowest accuracy rates, while sounds like /n/ (e.g., “no”) and /ʃ/ (e.g., “sheep”) were consistently transcribed correctly. These findings highlight the importance of targeting specific pronunciation difficulties in Cantonese EFL learners to improve intelligibility. The study supports the prioritization of intelligibility over accent reduction in pronunciation instruction, providing practical implications for teaching pronunciation in Cantonese-speaking contexts.

The role of sound-to-symbol literacy in phonological awareness: Evidence from Cantonese

Phonological awareness reflects linguistic knowledge related to the sound system of a language. Individual development of phonological awareness is known to progress from larger to smaller sized units and is promoted by the acquisition of literacy, especially in alphabet-based writing systems that are built around sound-to-symbol correspondences. The present study addressed the nature of phonological awareness in speakers of a logographically scripted language. It investigated phonological awareness in adult speakers of Cantonese hailing from Hong Kong who (compared to speakers of other logographically scripted languages) traditionally received little sound-based assistance from tools like Pinyin or Zhu-yin-Fu-Hao when they acquired orthography. The study adopted an individual difference approach, quantifying individually variable levels of experience with a sound-to-symbol writing system and their relationship to phonological awareness. Fifty-seven Hong-Kong speakers of Cantonese took part online, completing rhyme judgment and phoneme monitoring tasks, alongside an extensive background questionnaire. The main prediction that Cantonese speakers who had a relatively high level of experience with sound-to-symbol writing would show an advantage in phonological awareness at the subsyllabic level was largely borne out by the data. The findings of the present study suggest that phonological awareness is a complex set of dissociable skills, shaped by the linguistic and orthographic experience of individual speakers.

The impact of task guidance on incidental collocation learning from task-based reading

This study explored how to promote incidental collocation learning from task-based reading. In this study, 101 Cantonese speakers read three English texts that contained 12 target collocations. Playing a role as an editor of a magazine, participants were asked to determine if the three texts were acceptable to be published in the next issue. While half of the participants (– Guidance, n = 50) were asked to simply accept or reject the texts after reading, the other half (+ Guidance, n = 51) received task guidance that contained a list of specific reviewing criteria. Participants’ eye-movements were recorded during the editor task, and 10 participants from each condition were asked to produce stimulated recalls while viewing their eye-movements. The rest of the participants’ ( n = 81) knowledge about the target collocations was measured with form recall and recognition tests immediately and two weeks after the task. The results revealed that task guidance led to greater fixation durations and counts on the target collocations, as well as improved performances in the immediate posttest. The stimulated recalls further indicated that task guidance encouraged more goal-oriented reading. The findings underscore the importance of careful task design to promote incidental collocation learning from reading.

Diversity gaps among practicing ophthalmologists in Canada: a landscape study

ObjectiveOutline geographic disparities in access to language-and gender-concordant ophthalmologic care in Canada. DesignCross-sectional. ParticipantsPracticing ophthalmologists in Canada (September 2023). MethodsData on ophthalmologists, including demographics, languages spoken, and practice locations, were collected from provincial regulatory body websites. Population data were extracted from the 2021 Statistics Canada Census. Ratio of ophthalmologists-to-potential patients and mean distances (absolute, population-weighted) to gender- and language-concordant care were calculated. The five most common languages spoken in the included provinces were analyzed. ResultsThere were 986 and 1338 ophthalmologists in the language and gender analysis, respectively. Few ophthalmologists spoke non-official languages in Saskatchewan, Manitoba, and Nova Scotia. In a population-weighted analysis, the distance to a language-concordant ophthalmologist were 4.55 times greater for Spanish speakers compared to their English counterparts. Cantonese speakers had the shortest distances to language-concordant care but were still had 40% greater distance than English speakers in the same regions. Despite French-speaking ophthalmologists being the most prevalent per 100 000 speakers, francophones outside Quebec endured distances over double that of anglophones to access language-concordant care. Females in Newfoundland and Saskatchewan faced the longest distances to access gender-concordant care. In Ontario, females may face 3 times the distance to gender-concordant ophthalmologists compared to males. Quebec approaches gender parity with a male-to-female ratio of 55:45. ConclusionsThe results highlight the disparities in accessibility to non-English ophthalmologic care and the underrepresentation of female ophthalmologists across Canada. These disparities underscore the need for targeted strategies to ensure that the ophthalmologic workforce mirrors the demographic of the population it serves.

Acoustic Analyses of L1 and L2 Vowel Interactions in Mandarin–Cantonese Late Bilinguals

While the focus of bilingual research is frequently on simultaneous or early bilingualism, the interactions between late bilinguals’ first language (L1) and second language (L2) have rarely been studied previously. To fill this research gap, the aim of the current study was to investigate the production of vowels in the L1 Mandarin and L2 Cantonese of Mandarin–Cantonese late bilinguals in Hong Kong. A production experiment was conducted with 22 Mandarin–Cantonese bilinguals, as well as with 20 native Mandarin speakers and 21 native Cantonese speakers. Acoustic analyses, including formants of and Euclidean distances between the vowels, were performed. Both vowel category assimilation and dissimilation were noted in the Mandarin–Cantonese bilinguals’ L1 and L2 vowel systems, suggesting interactions between the bilinguals’ L1 and L2 vowel categories. In general, the findings are in line with the hypotheses of the Speech Learning Model and its revised version, which state that L1–L2 phonetic interactions are inevitable, as there is a common phonetic space for storing the L1 and L2 phonetic categories, and that learners always have the ability to adapt their phonetic space. Future studies should refine the data elicitation method, increase the sample size and include more language pairs to better understand L1 and L2 phonetic interactions.

Validation of a Cantonese Version of the Amsterdam-Nijmegen Everyday Language Test (CANELT): A functional approach.

The current study aimed to validate the Cantonese version of the Amsterdam-Nijmegen Everyday Language Test (CANELT), a functional communication assessment tool for Cantonese speakers with aphasia. A quantitative scoring method was adopted to examine the pragmatics and informativeness of the production of people with aphasia (PWA). CANELT was translated from its English version with cultural adaptations. The performance on the 20-item CANELT collected from 56 PWA and 100 neurologically healthy Cantonese-speaking controls aged 30 to 79 years was orthographically transcribed. Scoring was based on the completeness of the main concepts produced in the preamble and subsequent elaborations, defined as Opening (O) and New Information (NI). Measures examining the validity and reliability were conducted. An age effect was found in neurologically healthy controls, and therefore z scores were used for subsequent comparisons between neurologically healthy controls and PWA. The test showed strong evidence for known-group validity in both O [χ2 (2) = 95.2, p < .001] and NI [χ2 (2) = 100.4, p < .001]. A moderate to strong correlation was found between CANELT and standardized aphasia assessment tools, suggesting satisfactory concurrent validity. Reliability measures were excellent in terms of internal consistency (Cronbach's α of .95 for both 'O' and 'NI'), test-retest reliability (ICC = .96; p < .001), intra-rater reliability (ICC = 1.00; p < .001), and inter-rater reliability for O (ICC = .99; p < .001) and NI (ICC = .99; p < .001). Sensitivity and specificity for O are 97% and 76.8%, respectively, while for NI, a sensitivity of 95% and specificity of 91.1% were obtained. Measures on validity and reliability yielded promising results, suggesting CANELT as a useful and reliable functional communication assessment for PWA. Its application in managing PWA and potential areas for development are discussed.

Expectation Modulates Repetition Suppression at Late But Not Early Stages during Visual Word Recognition: Evidence from Event-related Potentials.

Visual word recognition is commonly rapid and efficient, incorporating top-down predictive processing mechanisms. Neuroimaging studies with face stimuli suggest that repetition suppression (RS) reflects predictive processing at the neural level, as this effect is larger when repetitions are more frequent, that is, more expected. It remains unclear, however, at the temporal level whether and how RS and its modulation by expectation occur in visual word recognition. To address this gap, the present study aimed to investigate the presence and time course of these effects during visual word recognition using EEG. Thirty-six native Cantonese speakers were presented with pairs of Chinese written words and performed a nonlinguistic oddball task. The second word of a pair was either a repetition of the first or a different word (alternation). In repetition blocks, 75% of trials were repetitions and 25% were alternations, whereas the reverse was true in alternation blocks. Topographic analysis of variance of EEG at each time point showed robust RS effects in three time windows (141-227 msec, 242-445 msec, and 467-513 msec) reflecting facilitation of visual word recognition. Importantly, the modulation of RS by expectation was observed at the late rather than early intervals (334-387 msec, 465-550 msec, and 559-632 msec) and more than 100msec after the first RS effects. In the predictive coding view of RS, only late repetition effects are modulated by expectation, whereas early RS effects may be mediated by lower-level predictions. Taken together, our findings provide the first EEG evidence revealing distinct temporal dynamics of RS effects and repetition probability on RS effects in visual processing of Chinese words.

Acoustic Analyses of Tone Productions in Sequencing Contexts Among Cantonese-Speaking Preschool Children With and Without Childhood Apraxia of Speech.

Pitch variations (tone productions) have been reported as a measure to differentiate Cantonese-speaking children with and without childhood apraxia of speech (CAS). This study aims to examine fundamental frequency (F0) changes within syllables and the effects of syllable structure, lexical status, and syllable positions on F0 in Cantonese-speaking preschool children with and without CAS. Six children with CAS, six children with non-CAS speech sound disorder plus language disorder (S&LD), 22 children with speech sound disorder only (SSD), and 63 children with typical speech-language development (TD) performed the tone sequencing task (TST). Growth curve analysis was employed to analyze and compare the F0 values within syllables with three Cantonese tones (high level, high rising, and low falling). The analysis considered the effects of syllable structure (vowel and consonant-vowel), lexical status (word and nonword), and syllable position (initial, medial, and final) on F0, as well as comparisons within and between groups. Within each group, the effects of syllable structure and position on F0 values were found with different patterns. Between-group comparisons showed that the CAS group had reduced F0 contrasts. The CAS group could be differentiated from the control groups based on interactions of F0 with syllable structure and position, but not lexical status. The dissimilarity of F0 values detected between the CAS and SSD/TD groups was more prominent than that observed between the CAS and S&LD groups. This study demonstrated that Cantonese-speaking children with CAS had difficulty in varying F0 within syllables as compared to those without CAS, suggesting pitch variation difficulty and language-specific impairment profiles in CAS. Future investigations of objective measures for identifying Cantonese speakers with CAS and cross-linguistic investigations using growth curve analysis and the TST are suggested.

English loanwords in Hong Kong Cantonese: false friend cognates and English vocabulary acquisition

Abstract Research on loanword semantics seldom investigates systematic patterns of change because semantic change is not nearly as constrained and predictable as phonological change. Hong Kong is a bilingual city of English and Chinese/Cantonese, where people frequently use English loanwords in Hong Kong Cantonese (ELCs). Drawing upon the notion of cognates, this questionnaire-based study examines the extent to which Hong Kong Cantonese speakers are aware of the contrasts in meaning between ELCs and the English words from which they have been borrowed. Three ELCs that are false friend cognates with their English source words were selected to be included in the study. Respondents who completed the questionnaire included a group of native English speakers (N = 19) and a group of native Cantonese speakers (N = 107). Their responses were compared and contrasted through both qualitative and quantitative methods. The results show that the ELCs affect the Cantonese speakers’ understanding of the English source words. The English proficiency of native Cantonese speakers has been identified as a contributing factor that correlates with the accuracy of understanding word meanings. This study delineates the relationship between false friend cognates, ELCs and English vocabulary acquisition. It offers pedagogical implications for vocabulary learning and teaching in bilingual contexts.

The impact of text-audio synchronized enhancement on collocation learning from reading-while-listening: an extended replication of Jung and Lee (2023)

Abstract This study attempted to extend Jung and Lee’s (2023. Incidental collocational learning from reading-while-listening and the impact of synchronized textual enhancement. International Review of Applied Linguistics in Language Teaching.) study to gain further insight into the pedagogical potential of text-audio synchronized enhancement on L2 collocation learning from reading-while-listening. Eighty-seven Cantonese ESL speakers read two English stories under one of four conditions, i.e., reading-only, reading-while-listening, reading-while-listening with colouring, and reading-while-listening with synchronized colouring. The stories contained 12 target adjective-pseudonoun collocations, and participants’ learning was assessed with immediate and one-week delayed posttests that consisted of recall and recognition tests. Lastly, two participants from each group produced stimulated recall comments. The results revealed that both colouring techniques significantly promoted receptive knowledge about the target collocations in the immediate posttest. Synchronized colouring, in particular, was also effective in improving immediate pseudonoun meaning recall scores and reducing reaction times to collocation recognition tests. Stimulated recalls indicated that synchronized colouring allowed for more uninterrupted processing of the stories in close alignment with the audio.

Brief Report: Atypical Temporal Sensitivity in Coarticulation in Autism: Evidence from Sibilant-Vowel Interaction in Cantonese.

Atypicalities in the prosodic aspects of speech are commonly considered in clinical assessments of autism. While there is an increasing number of studies using objective measures to assess prosodic deficits, such studies have primarily focused on the intonational and rhythmic aspects of prosody.Little is known about prosodic deficits that are reflected at the segmental level, despite the strong connection between prosody and segmental realization. This study examines the nature of sibilant-vowel coarticulation among male adult native speakers of Cantonese with autism and those without. Fifteen Cantonese-speaking autistic (ASD) adults (mean age = 25years) and 23 neuro-typical (NT) adults (mean age = 20years) participated. Each participant read aloud 42 syllables with a sibilant onset in carrier phrase. Spectral means and variance, skewness and kurtosiswere measured, and regressed by vocalicrounding (rounded vs. unrounded), cohort (ASD vs. NT), sibilantduration, and articulationrate. Whileneurotypical participants exhibit sibilant-vowel coarticulation that are sensitive to variationin sibilant duration, autistic participants show no sensitivity to segmental temporalchanges. These findings point to the potential for atypicalities in prosody-segment interaction as an important characteristic of autistic speech.

Phonetic adaptation in conversation: The case of Cantonese tone merging

Phonetic adaptation occurs when one interlocutor adjusts their speech to converge to or diverge from that of their conversation partner to enhance intelligibility. While most research investigates segmental adaptations, our study focuses on suprasegmentals, specifically Cantonese tone merging. Some Cantonese speakers (“mergers”) are found to merge certain lexical tones (e.g., mid-level Tone3 and low-level Tone6), which may cause confusions when interacting with non-merger speakers. Previous research has shown that a merger may unmerge a level tone pair (Tone3/Tone6) when shadowing a non-merger. However, still unclear is whether such changes result from automatic acoustic mimicking or reflect goal-oriented adaptations for intelligibility benefits. This study uses an unscripted conversation task involving a merger and a non-merger playing a video game, where productions of merged tones may cause confusions, thus motivating goal-oriented adaptations. Initial acoustic analyses focus on average F0 and F0 taken at 10 points along the contour in target Tone3 and Tone6 productions by mergers. Differences in these values for Tone3 versus Tone6 provide evidence that a merger is unmerging the tone pair. Preliminary results show increasing unmerging trends as the task progresses, suggesting progressive alignment toward a non-merger’s productions for intelligibility gains.

Assessing vocabulary and grammar development in New Zealand Mandarin- and Cantonese-speaking children: a validation study

ABSTRACT New Zealand has a growing population of Mandarin and Cantonese speakers, including children with speech, language, and communication disorders. However, the absence of language development profiles poses challenges in effectively identifying and addressing these concerns. This study aimed to capture the current state of monolingual, bilingual, and multilingual Mandarin- and Cantonese-speaking children living in New Zealand. Over 200 mothers in the Growing Up in New Zealand longitudinal cohort study identified their children as understanding Mandarin and/or Cantonese. Mothers completed newly adapted vocabulary and grammar checklists for New Zealand Mandarin and Cantonese speakers at the Age 2 data wave. Both of the adapted New Zealand Mandarin and Cantonese versions showed high reliabilities and validities. Unique demographic predictors of children’s vocabulary and grammar were mothers’ education, household deprivation level, and children’s birth order. Language status and maternal concerns were also unique predictors of children’s vocabulary development in Mandarin and Cantonese, with monolingual children whose mothers reported no concerns having higher Mandarin and Cantonese vocabularies. These results have rich implications for researchers, clinicians, and practitioners working with Mandarin- and Cantonese-speaking children in New Zealand and worldwide.

Is personality reflected in the gestures of second language speakers?

Previous studies on gestures and personality suggest an ambiguous picture of the effects of the various personality dimensions on the different types of speech-gestures and adaptors. In foreign language learning an additional variable to take into account is proficiency, which some studies have shown to affect gestures. In this study, we explore how various intrinsic variables, including personality, proficiency, gender and age affect the gestures of 61 Cantonese speakers of English as a second language. Participants were asked to narrate a video cartoon. Their proficiency and the frequency of gestures produced was based on those narrations. A functional categorization of gestures was followed, dividing them into semantic and discursive, and that also noted adaptors and micro-gestures, referred to as "flutters." Personality was self-reported using the 44 question Big-Five inventory. Correlations and a series of generalized linear models were developed to explore the interplay between variables. Agreeableness was found to be positively correlated with semantic gestures; and neuroticism and age were negatively correlated with flutter duration. Contrary to the findings from previous studies, no significant relationships were found between neuroticism and adaptors or semantic gestures, nor between extraversion or openness and semantic gestures. Proficiency and gender had little effect on gestures. As personality has been shown to be an important factor in gesture production in mother tongue speakers, we expected to also see a similar result with foreign language speakers, this not being so suggests that other variables, aside from those tested, should be considered. In particular, the results suggest that emotion and emotional constructs, such as anxiety, self-confidence or empathy, might have a greater impact on gesture production than proficiency or personality, a point which should be taken into account especially in language evaluation contexts or professional contexts with second language speakers.

Pitch Variation Skills in Cantonese Speakers With Apraxia of Speech After Stroke: Preliminary Findings of Acoustic Analyses.

Literature on apraxia of speech (AOS) in Chinese speakers is sparse compared to the English literature. This study aims to examine the pitch variation skills of Cantonese adults with AOS poststroke in terms of perceptual tone accuracy, acoustic fundamental frequency (fo) changes, and repetition durations on items with different syllable structures, lexical status, and tone syllables in various positions in a sequencing context. Six Cantonese adults with AOS poststroke (AOS group), six adults without AOS poststroke (nAOS group), and six healthy controls (HC group) performed the tone sequencing task (TST), which was adapted from oral diadochokinetic tasks, with three different tone syllables. Tone accuracy, fo values across 10 time points, and acoustic repetition durations were compared within and between the groups. The AOS group produced significantly lower tone accuracy and different fo changes on the three Cantonese tone syllables compared with the control groups and significantly longer repetition durations than the HC group. The AOS group showed more difficulty with the tone syllables with the consonant-vowel structure, while a priming effect was observed on the T2 (high-rising) syllables with lexical meanings. A unique lowering of fo in the final syllable of the trisyllabic items was observed only in the AOS group. The AOS group showed degraded pitch variation skills. The effects of the three linguistic elements were discussed. Future investigations are called for to adapt the TST in other tonal languages to determine if degraded pitch variation skills are present in other tonal language speakers with AOS.

A Cantonese Audio-Visual Emotional Speech (CAVES) dataset

We present a Cantonese emotional speech dataset that is suitable for use in research investigating the auditory and visual expression of emotion in tonal languages. This unique dataset consists of auditory and visual recordings of ten native speakers of Cantonese uttering 50 sentences each in the six basic emotions plus neutral (angry, happy, sad, surprise, fear, and disgust). The visual recordings have a full HD resolution of 1920 × 1080 pixels and were recorded at 50 fps. The important features of the dataset are outlined along with the factors considered when compiling the dataset. A validation study of the recorded emotion expressions was conducted in which 15 native Cantonese perceivers completed a forced-choice emotion identification task. The variability of the speakers and the sentences was examined by testing the degree of concordance between the intended and the perceived emotion. We compared these results with those of other emotion perception and evaluation studies that have tested spoken emotions in languages other than Cantonese. The dataset is freely available for research purposes.

Tuning Learners to Linguistic Diversity using the “Your Words” Activity

The “Your Words” activity invites students to explore how they vary the ways that they communicate in their various speech communities (Morgan, 2014; Rampton, 2020). Students may consider their speech communities in only general terms, such as “I am a speaker of English and Cantonese because I am a resident of Hong Kong.” Or “I am from Miami, so I speak English and Spanish at home. Or “I like to skateboard, and I share some jargon with my skate mates that I don’t use in other situations.” To help them reflect more deeply on communities for which they may not have names, the “Your Words” activity invites them to reflect on and share a word or phrase that they only use in specific social groups that form part of their lives. The discussion that follows encourages students to consider how they modify the way they communicate as they move through the different speech communities that are part of their daily lives. The activity is useful for raising awareness of speech communities before introducing discussions about language attitudes and beliefs that can help prepare pre-service teachers for working with students whose linguistic and cultural diversity is unfamiliar to them.

L2 irony comprehension and the role of L2 proficiency and use

The present study investigated how Cantonese speakers learning English as a second language (L2) would comprehend English irony and whether their L2 proficiency and use would moderate their irony processing. Thirty Cantonese speakers with differing English proficiency (intermediate vs advanced) were asked to complete an irony comprehension task in which they had to determine if given comments in literal or ironic situations were positive or negative. The irony comprehension task was immediately followed by a stimulated recall session to further explore the participants’ thought processes while responding to the irony comprehension items. The results revealed that the participants were faster and more accurate when processing positively-valenced comments (literal praise, ironic criticism), compared to negatively-­valenced ones (literal criticism, ironic praise). The findings suggest that learners had greater difficulty identifying ironic praises than ironic criticisms, underscoring the role of valence in second language irony inferencing. The stimulated recall data suggested that the anticipation of irony may accelerate the identification of ironic criticisms. While proficiency facilitated the speed of irony comprehension, the duration of L2 use, especially in speaking, emerged as an important factor in moderating the accuracy of irony comprehension. ABSTRACT (CANTONESE) 本研究調查廣東話(粵語)為母語的英語第二語言學習者如何理解英語的反è«·, 以及他們的第二語言熟練程度和使用情況是否會影響他們對反è«·的理解。三十位不同英語熟練程度(中級和高級)的廣東話使用者完成了一項反è«·理解任務。他們需要判斷在字面意義或反è«·情境下給出的評論是積極的還是消極。反è«·理解任務後, 參與者立即進行刺激回憶環節, 以進一步探索他們在反è«·理解任務時的思維過程。結果顯示, 相較於消極效價的評論(字面批評, 反è«·稱贊), 參與者在處理積極效價的評論(字面稱贊, 反è«·批評)時反應更快, 準確率也更高。這些結果表明, 學習者在識別反è«·稱贊時的困難大於識別反è«·批評。這顯示情感效價在第二語言反è«·理解中的作用。刺激回憶的數據表明, 預期反è«·可能會加速對反è«·批評的識別。儘管第二語言熟練程度有助提高反è«·理解速度, 但第二語言的使用時長, 特別是口語的使用, 爲影響反è«·理解準確率的重要因素。

An online survey of clinical practice and confidence in diagnosing acquired apraxia of speech in Cantonese speakers

Purpose The assessment and diagnosis of apraxia of speech (AOS) have been well studied in the English context, yet there is limited understanding of the clinical practice in speakers of other languages, like Cantonese. This study aimed to obtain information about the clinical practice of assessment methods and diagnostic criteria used, and confidence in diagnosing, AOS in Cantonese speakers. Method An online survey constructed with Google Forms was completed by 27 speech-language pathologists (SLPs) in Hong Kong. The questionnaire comprised 12 questions covering (a) demographic information, (b) experience working with speakers with AOS, (c) confidence in making AOS diagnosis in Cantonese speakers, (d) assessment tasks or methods used for assessing AOS in Cantonese speakers, (e) clinical features used for diagnostic purposes, and (f) assessment tasks used to determine the presence of clinical features for diagnostic purposes. Result All respondents (100%) made AOS diagnoses based on the observed clinical features, while no respondents made diagnoses using only standardised tests or quantitative measures. Six clinical features were commonly used by most of the respondents: articulatory groping (100%), inconsistent articulatory errors (100%), length effects (85.2%), difficulty initiating speech (81.5%), automaticity effects (81.5%), and sound distortions (77.8%). More than half of the respondents collected connected speech samples (64%), and conducted diadochokinesis (64%) and repetition tasks (64%). The average confidence level of the respondents for making AOS diagnoses was fair (3.63/5). Conclusion The SLPs in Hong Kong make AOS diagnoses based on the observed clinical features that have been reported in the English literature. Although some of the clinical features have been updated as non-discriminatory for AOS, they are still being used for AOS diagnosis in Cantonese speakers. Tendencies were observed with respect to the assessment tasks selected. The fair diagnostic confidence level suggests a need for future investigations of AOS in Cantonese speakers and the development of assessment tools.

Neural encoding of Cantonese and Vietnamese tones

The present pilot study investigates the neural encoding of lexical tones in Cantonese and Vietnamese. Better encoding of tones was found in native than non-native tone language speakers in previous research, with fewer studies examining language-specific effects. An identical equipment setup was used to measure neural responses to three lexical tones in Hong Kong (HK) (by Cantonese speakers) and Ho Chi Minh City (by Vietnamese speakers). The three tones were the high rising (35), dipping (214), and low falling (21) tones, of which the 21 and 214 tones were unique to Cantonese and Vietnamese respectively. If better tone encoding is language-specific, Vietnamese and Cantonese adult speakers are expected to show enhanced encoding of these tones. Across the majority of temporal and spectral measures, we did not find significant group differences across tonal categories, suggesting that enhancement of neural encoding found in native speakers was likely to be language general. If confirmed with a larger sample size, these findings may suggest that clinical tools utilizing speech stimuli for the assessment of spoken language processing and its related functions may not necessarily require customization for a specific language. [Work supported by ITF in HK.]