How the Phoneme Inventory Changes its Shape: A Cognitive Approach to Phonological Evolution and Change
Paper · 2008 · Javier Enrique Díaz Vera
Summary
The paper asks whether Cognitive Grammar can explain sound change without abstract rule machinery, using only categories with graded structure. Díaz Vera combines Nathan's view of sonority as the main source of prototype effects in phonology with Labov's notion of vowel peripherality, defined as position on the edge versus the interior of the F1/F2 space. On this view, open vowels and peripheral vowels count as better examples of the category "phoneme", and /a/ is the best example of all. He then recasts Labov's chain-shift principles as two opposite routes, tested against episodes from the history of English. In one route, highly audible sounds lose prototypicality by closing, devoicing or shortening. In the other, weak sounds gain it by opening, voicing or lengthening. A phoneme is modelled as a radial network: one central allophone plus context-induced extensions. The same structure is shown for lexical meaning (the senses of eat). The main claim is that chain shifts are coordinated shifts in how speakers rank the prototypicality of a whole inventory. This links phonological and semantic change under one cognitive mechanism.
Key points
- Prototypicality is judged by frequency of occurrence, order of acquisition and universality (after Langacker). /a/ ranks highest on all three and is also acquired first by infants.
- The paper builds a two-axis table of change:
- Opening (close > open) or gaining peripherality makes a sound more prototypical.
- Closing or losing peripherality makes it less prototypical.
- Principle 1 (louder sounds become less audible) is illustrated by three changes:
- the Long Back Merger (IE */α:/ > PrGmc */o:/);
- West Germanic long voiced fricatives becoming OE stops (habban, ridda, frogga);
- the Great Vowel Shift, including the diphthongization of ME /i:/ and /u:/.
- Principle 2 (weaker sounds become more audible) is illustrated by Grimm's Law Part I, Verner's Law voicing, and ME open-syllable lengthening (mete, broken, wiku, duru).
- Allophones are explained through accommodation. In syllables such as [pa], [ta] and [ka], the neighbouring consonant keeps the vowel from reaching full loudness, so these variants sit further from the prototype than a bare [a].
Interesting ideas
- I1. A category can be modelled as one central member plus extensions that are each licensed by a specific context, rather than as a checklist of required features; this keeps every peripheral member traceable to why it differs.
- I2. Graded membership is scored with several independent, measurable signals (frequency, acquisition order, universality) instead of a single criterion.
- I3. Change is described along two independent axes, each with a known direction, so any observed shift falls into one cell of a small table.
- I4. Variants are treated as context-conditioned departures from a base form, where the conditioning environment itself explains the deviation, as with consonant accommodation causing vowel undershoot.
- I5. One representational device, the prototype-schema-extension network, is reused at two very different levels, sound and meaning, to achieve conceptual unification.
For Mova
How these ideas could serve Mova, our small open language model — its files, stages and tests:
- I1 (world): Verb senses taken from WordNet could be stored as radial networks, with literal eat (ingesting food) as the hub and metaphorical uses (eaten by jealousy, eating money) as labelled extensions, so the world builder can report which extension it chose and why.
- I2 (learn): Silver-data examples or sense assignments could be ranked by a few separate prototypicality signals, which makes "typical versus marginal" an explainable composite score rather than a black-box confidence.
- I3 (answer): Errors from readers and students could be logged on two explicit axes, such as category and direction of drift, giving a compact and interpretable error taxonomy for evaluation reports.
- I4 (tokens): Inflected, contracted or archaic spellings could be linked to their lemma together with the triggering context recorded, so lemmatization stays explainable instead of being a bare lookup.
- I5 (frames): A single prototype-plus-extension structure could serve both semantic roles (typical versus atypical Agents) and speech acts (literal versus indirect), so explanations share one format across the pragmatics layer.
Institutions
Fields, topics and concepts
📚 Shelves 4The field of science this work belongs to (OpenAlex fields).Arts and Humanities · 16,039 worksLanguage and Linguistics · 15,891 worksPsychology · 1,552 worksExperimental and Cognitive Psychology · 870 works
Cite
Cite as Javier Enrique Díaz Vera. 2008. How the Phoneme Inventory Changes its Shape: A Cognitive Approach to Phonological Evolution and Change. Miscelánea: A Journal of English and American Studies 37.
@article{vera2008how,
title = {{How the Phoneme Inventory Changes its Shape: A Cognitive Approach to Phonological Evolution and Change}},
author = {Javier Enrique Díaz Vera},
journal = {Miscelánea: A Journal of English and American Studies 37},
year = {2008},
doi = {10.26754/ojs\_misc/mj.20089704},
url = {https://doi.org/10.26754/ojs_misc/mj.20089704}
}References
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