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Open Access Publications from the University of California

Linguistics Department

UC San Diego

Journal Articles and Conference Proceedings Papers

A formal typology of process interactions

(2024)

Some phonologically significant generalizations result from processes, often formalized as rewrite rules, while others result from interactions among independently motivated processes, often formalized in terms of serial ordering. We adopt these general formalizations of processes and interactions to address two questions. One is the interaction question: what are all the possible forms of interaction between two processes? The other is the opacity question: what makes an interactions between two processes opaque? We show that these questions are best addressed with a rigorous algebraic formalization of processes and their pairwise interactions, describing the complete formal typology of process interactions and identifying the formal properties of those interactions that lead to different types of opacity.

Weak determinism and the computational consequences of interaction

(2024)

Abstract: Recent work has claimed that (non-tonal) phonological patterns are subregular (Heinz 2011a,b, 2018; Heinz and Idsardi 2013), occupying a delimited proper subregion of the regular functions—the weakly deterministic (WD) functions (Heinz and Lai 2013; Jardine 2016). Whether or not it is correct (McCollum et al. 2020a), this claim can only be properly assessed given a complete and accurate definition of WD functions. We propose such a definition in this article, patching unintended holes in Heinz and Lai’s (2013) original definition that we argue have led to the incorrect classification of some phonological patterns as WD. We start from the observation that WD patterns share a property that we call unbounded semiambience, modeled after the analogous observation by Jardine (2016) about non-deterministic (ND) patterns and their unbounded circumambience. Both ND and WD functions can be broken down into compositions of deterministic (subsequential) functions (Elgot and Mezei 1965; Heinz and Lai 2013) that read an input string from opposite directions; we show that WD functions are those for which these deterministic composands do not interact in a way that is familiar from the theoretical phonology literature. To underscore how this concept of interaction neatly separates the WD class of functions from the strictly more expressive ND class, we provide analyses of the vowel harmony patterns of two Eastern Nilotic languages, Maasai and Turkana, using bimachines, an automaton type that represents unbounded bidirectional dependencies explicitly. These analyses make clear that there is interaction between deterministic composands when (and only when) the output of a given input element of a string is simultaneously dependent on information from both the left and the right: ND functions are those that involve interaction, while WD functions are those that do not.

Overapplication Conversion

(2018)

This squib sheds light on the relationship between two types of overapplication opacity, counterbleeding and self-destructive feeding, by demonstrating how one can be formally converted into the other. This demonstration further clarifies the relation between self-destructive feeding and cross-derivational feeding interactions, which have also been identified as involving overapplication opacity (Baković, 2007; 2011).

Cover page of Apparent ‘sufficiently similar’ degemination in Catalan is due to coalescence

Apparent ‘sufficiently similar’ degemination in Catalan is due to coalescence

(2017)

Cameron et al. (2010) and Fruehwald & Gorman (2011) present the pattern of homorganic consonant cluster reduction in Catalan as a challenge to Baković’s (2005) theory of antigemination, which predicts that any feature ignored in the determination of consonant identity for the purposes of antigemination in a given language must independently assimilate in that language. I argue that the pattern in Catalan is not a counterexample to this prediction if the reduction process is analyzed as coalescence, following Wheeler (2005), rather than as deletion.

Cover page of 'What' clauses can and 'which' cannot: A Romanian puzzle

'What' clauses can and 'which' cannot: A Romanian puzzle

(2023)

Abstract: A previously unnoticed puzzle is presented concerning the distribution of wh-determiners in free relative clauses in Romanian: while care 'which' + NP can never introduce free relative clauses, ce 'what' + NP does so productively, as do all other wh-words. New evidence is provided showing that care 'which' + NP in interrogative clauses in Romanian exhibits strong discourse-anaphoric requirements, unlike ce 'what' + NP. This feature of care 'which' + NP is suggested to be responsible for the puzzle by triggering a clash with the basic set-denoting function of a free relative clause, along the lines of what is observed in light-headed relative clauses.

Faithfulness and underspecification

(2023)

This work is about two ‘generation problems’ for classic Optimality Theory, chain shifts and saltations. The issues for OT posed by traditional analyses of chain shifts and saltations have led to various embellishments of the classic theory, typically in the form of novel constraint types. Reiss (2021a,b) proposes a general solution to the problem of chain shifts and saltations that relies more directly on different assumptions about representations than about constraints. Specifically, Reiss assumes that underlying representations may be underspecified, and that a map ‘counts’ as a chain shift or as a saltation so long as the surface alternants from a uniform underlying representation match the respective observed alternants. We report here on three results from our ongoing formal assessment of Reiss’s proposed solution.

Learnability of complex phonological interactions: an artificial language learning experiment

(2023)

Learnability of complex phonological interactions: an artificial language learning experiment

Cover page of Language-to-music transfer effects depend on the tone language: Akan vs. East Asian tone languages

Language-to-music transfer effects depend on the tone language: Akan vs. East Asian tone languages

(2023)

Recent research suggests that speaking a tone language confers benefits in processing pitch in nonlinguistic contexts such as music. This research largely compares speakers of nontone European languages (English, French) with speakers of tone languages in East Asia (Mandarin, Cantonese, Vietnamese, Thai). However, tone languages exist on multiple continents-notably, languages indigenous to Africa and the Americas. With one exception (Bradley, Psychomusicology, 26(4), 337-345, 2016), no research has assessed whether these tone languages also confer pitch processing advantages. Two studies presented a melody change detection task, using quasirandom note sequences drawn from Western major scale tone probabilities. Listeners were speakers of Akan, a tone language of Ghana, plus speakers from previously tested populations (nontone language speakers and East Asian tone language speakers). In both cases, East Asian tone language speakers showed the strongest musical pitch processing, but Akan speakers did not exceed nontone speakers, despite comparable or better instrument change detection. Results suggest more nuanced effects of tone languages on pitch processing. Greater numbers of tones, presence of contour tones in a language's tone inventory, or possibly greater functional load of tone may be more likely to confer pitch processing benefits than mere presence of tone contrasts.

Cover page of Perception of ATR contrasts by Akan speakers: a case of perceptual near-merger

Perception of ATR contrasts by Akan speakers: a case of perceptual near-merger

(2023)

Despite many acoustic, articulatory and phonological studies of Advanced Tongue Root (ATR) vowel contrasts and vowel harmony, studies of the perception of ATR contrasts by speakers of languages with ATR vowel distinctions are lacking. This paper explores how vowels which differ for ATR or height, or both, are distinguished by speakers of Akan, a Kwa language of Ghana. We examine whether the phonological contrastive status of the vowels impacts perception or whether it is driven by acoustic similarity. Results from two experiments reveal that vowels that differ only for ATR are well distinguished, even those that are in an allophonic relationship. Yet, vowels that are contrastive and differ by both ATR and height features, but are acoustically similar, are poorly perceived. We suggest that these vowel contrasts constitute a case of perceptual near-merger.