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“Substantive Bias in Artificial Phonology Learning” published on Lang. Linguist. Compass

We are pleased to announce the publication of a review article by Ivy and Youngah, in Language and Linguistics Compass. The article, titled “Substantive Bias in Artificial Phonology Learning,” provides a comprehensive review of the research on substantive bias in phonological learning since the influential 2012 paper by Moreton and Pater.

The review categorizes studies into vowel, consonant, and suprasegmental patterns, highlighting advancements in experimental paradigms, the definition of phonetic naturalness, and the exploration of various phonological phenomena. It emphasizes how subtle methodological choices in experimental designs can affect the results of substantive bias.

Key findings from the review include:

  • Vowel Patterns: Studies on vowel harmony have consistently developed more sophisticated paradigms, highlighting the role of naturalness in learning. The review showed how different training parameters (variable input, iterative learning) influence the effect of substantive bias.
  • Consonant Patterns: Research in this domain has explored various phonological phenomena, including nasalization, voicing, and saltatory alternations, suggesting the importance of considering phonetic precursor strength and the roles of articulatory and perceptual factors when assessing substantive bias effects.
  • Suprasegmental Patterns: Studies on tone and stress patterns have consistently shown a positive effect of substantive bias, differing from segmental patterns. The review suggests that these differences might be related to the learnability of the phonological patterns.

Based on their review, Ivy and Youngah suggest that future research should include:

  1. An examination of the articulatory and perceptual foundations of each phonological pattern
  2. An analysis of the similarities in features, articulation, and perception

The paper not only summarizes current findings but also provides important guidance for future research in phonological learning, particularly in the area of substantive bias.

Zheng, S., & Do, Y. (2025). Substantive Bias in Artificial Phonology Learning. Language and Linguistics Compass, 19(1), e70005. open_in_newDOI

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“Tracking phonological regularities” published on Linguistics Vanguard

We are pleased to announce the publication of a new research article titled “Tracking phonological regularities: exploring the influence of learning mode and regularity locus in adult phonological learning” in the journal Linguistics Vanguard. The paper, authored by Xiaoyu, Thomas, Frank, Albert, and Youngah, investigates the ways adults learn phonological patterns in language.

Front matter of the paper "Tracking phonological regularities".

The study focused on the concept of regularity tracking, where learners subconsciously identify and utilize consistent patterns within a language system. The researchers examined how two factors – the learner’s approach (goal-oriented vs. exploratory) and the type of regularity (phonotactics vs. alternation) – influence this process.

Participants were tasked with acquiring vowel harmony rules for forming plurals in an experimental language. Across four conditions, researchers manipulated both the learning approach (whether participants were explicitly given a learning goal) and the type of regularity present in the language (phonotactics governed vowel selection vs. random vowel alternations).

The study’s key finding is that learners exhibited a stronger preference for identifying regularities when they had no explicit learning goal and when the language contained random alternations. This suggests that statistical learning mechanisms – which underlie our ability to unconsciously pick up on patterns – are influenced by the level of uncertainty in the learning environment and the nature of the regularity itself. Learners seem to be more sensitive to avoiding irregularities, particularly when the structure of the language itself is unpredictable. The findings overall suggest that learning strategies and the inherent structure of the language itself play a role in shaping how learners identify and utilize regularities within phonological patterns.

Yu, X., Van Hoey, T., Tan, F., Du, B. & Do, Y. (2024). Tracking phonological regularities: exploring the influence of learning mode and regularity locus in adult phonological learning. Linguistics Vanguard. open_in_newDOI file_download PDF

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“Vividness of Mandarin ABB Words”: LangCog

The latest LDL research article titled “What ratings and corpus data reveal about the vividness of Mandarin ABB words” has been published in the journal Language and Cognition. This research was conducted by members of our laboratory, Thomas (currently at KU Leuven), Xiaoyu, Youngah, in collaboration with PAN Tung-le from National Taiwan University.

The journal article.

The goal of this study was to understand the vividness of Mandarin ABB words. ABB words are a type of phrasal compound in Mandarin, consisting of a prosaic syllable A and a reduplicated BB part, resulting in a vivid phrasal compound.

The researchers collected subjective ratings regarding familiarity, iconicity, imagery/imageability, concreteness, sensory experience rating (SER), valence, and arousal for Mandarin ABB words. They contrasted these ratings with two other sets of prosaic word ratings to understand the distinctive role of variables that characterize ABB words.

The findings revealed that the variable that characterizes ABB items consistently throughout these case studies is their high score for imageability, showing that they are indeed rightfully characterized as vivid. The study also demonstrated the importance of contrasting rating data with other comparable datasets of a different phenomenon or data about the same phenomenon compiled in an ontologically different manner.

Van Hoey, T., Yu, X., Pan, T.-L., & Do, Y. (2024). What ratings and corpus data reveal about the vividness of Mandarin ABB words. Language and Cognition, 1–23. open_in_newDOI

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“Perceptual and featural measures of Mandarin consonant similarity” published on Data in Brief

Xiaoyu and Youngah’s paper, “Perceptual and featural measures of Mandarin consonant similarity: Confusion matrices and phonological features dataset,” has recently been published in Data in Brief.

The paper presents a comprehensive dataset containing two types of similarity measures for 23 Mandarin consonant phonemes: perceptual and featural measures. The perceptual measures are derived from confusion matrices obtained through native speakers’ identification tasks in quiet and noise-masked conditions. Based on these matrices, specific perceptual measures, such as confusion rate and perceptual distance, are calculated. Additionally, the authors propose a phonological feature system to evaluate the featural differences between each pair of consonants, providing insights into phonological similarity.

The dataset reveals a significant positive correlation between the perceptual and featural measures of similarity. Distance matrices are generated using the perceptual distance data, and a hierarchical cluster dendrogram is plotted using the unweighted pair group method with arithmetic mean (UPGMA). This dendrogram displays five major clusters of consonants.

This dataset can serve as a valuable reference for future studies seeking quantified perceptual measures of Mandarin consonant similarity. Additionally, it can be beneficial for research exploring consonant similarity in perceptual and phonological domains, as well as investigating the influence of linguistic and extralinguistic factors on consonant perception.

Yu, X., & Do, Y. (2024). Perceptual and featural measures of Mandarin consonant similarity: Confusion matrices and phonological features dataset. Data in Brief52, 109868. open_in_newDOI

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“Substantive bias and variation in the acquisition of vowel harmony” published on Glossa

Youngah and Tingyu’s paper have recently published in the journal Glossa. The paper is titled “Substantive bias and variation in the acquisition of vowel harmony.”

The study delves into substantive bias, a phenomenon where learners exhibit a preference for phonetically motivated patterns during language acquisition. The paper provides evidence that variable input, as opposed to categorical input, can activate substantive bias. In the experiment, native Hong Kong Cantonese speakers were randomly assigned to either categorical or variable training conditions for vowel backness harmony or disharmony, or to a no-training control condition. The results reveal that participants in the categorical and control conditions did not show a bias towards either pattern. However, those in the variable conditions demonstrated a preference for vowel harmony. This suggests that input variability can strengthen the effect of substantive bias. This research contributes to our understanding of the role of input variability in phonological learning and the mechanisms involved in acquiring phonetically motivated and unmotivated phonological patterns.

Congratulations to Youngah and Tingyu on their successful publication! The paper is accessible through Glossa under open access.

Huang, T., & Do, Y. (2023). Substantive bias and variation in the acquisition of vowel harmony. Glossa: A Journal of General Linguistics, 8(1), Article 1. open_in_new DOI

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“Variation learning in phonology and morphosyntax” published in Cognition

Youngah, Jon, and Samuel’s article, “Variation learning in phonology and morphosyntax”, has been published in the journal “Cognition”.

Phonological variation includes phonetic variation, which is influenced by articulatory or perceptual factors, whereas morphosyntactic variation is not. The researchers aimed to identify whether learning differences exist when children are exposed to phonological or morphosyntactic patterns with equal complexity. Cantonese-speaking children were taught an artificial language involving rounding harmony and gender agreement, with patterns applying variably or categorically.

The results showed that in the categorical learning conditions, participants had comparable rates of harmony and agreement. However, in the variable phonological learning conditions, children’s application of harmony exceeded the rate of exposure in training, suggesting a bias towards phonetically grounded rounding harmony. In the variable morphosyntactic condition, participants applied agreement below the rate of exposure.

These findings reveal a qualitative difference between learning in the two domains, with phonological learning being influenced by substantive grounding, while morphosyntactic learning is not. This research contributes to our understanding of language acquisition in children and may have implications for educational practices and interventions.

The article can be accessed here until 13 September 2023.

Do, Y., Havenhill, J., & Sze, S. S. L. (2023). Variation learning in phonology and morphosyntax. Cognition239, 105573. open_in_new DOI

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“Iconicity in Ideophones: Guessing, Memorizing, and Reassessing” : accepted at CogSci!

Van Hoey, T., Thompson, A. L., Do, Y., & Dingemanse, M. (2023). Iconicity in Ideophones: Guessing, Memorizing, and Reassessing. Cognitive Science. Accepted open_in_new DOI

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“Structural Markedness and Depiction” accepted by The Mental Lexicon

Arthur, May, Ping Hei (Felix) and Youngah’s paper has been accepted by the Mental Lexicon!

Thompson, Arthur L., Chan, May Pik Yu, Yeung, Ping Hei, & Do, Youngah. (2022). Structural markedness and depiction: The case of lower sequential predictability in Cantonese ideophones. The Mental Lexicon.

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CHIDEOD featured on Language Log!

… a valuable research tool for access to and analysis of premodern Sinitic binoms.

Prof Victor Mair, UPenn

The Chinese Ideophone Database (CHIDEOD) by Dr Arthur Lewis Thompson and Dr Thomas Van Hoey, postdocs of our department, were featured on Language Log:

DOI: 10.1163/19606028-bja10006

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Published: Are tones in the expressive lexicon iconic? Evidence from three Chinese languages (Thompson, 2018)

Arthur Lewis Thomspon has published his paper on tones and iconicity in PLoS ONE and our paper on processing multimorphemic words has been published in Cognition!

Thompson, A. L. (2018). Are tones in the expressive lexicon iconic? Evidence from three Chinese languages. PLOS ONE, 13(12). https://doi.org/10.1371/journal.pone.0204270