The current study investigates how native speakers of a morphologically complex language handle uncertainty related to linguistic forms that have gaps in their inflectional paradigms. We analyze their strategies of dealing with paradigmatic defectivity and how these strategies are motivated by subjective contemporaneousness, frequency, acceptability, and other lexical and structural characteristics of words. We administered a verb production task with Finnish native speakers using verbs from a small non-productive inflectional type that has many paradigmatic gaps and asked participants to inflect (...) the verbs in a given context. Inflectional uncertainty was measured by the number of different forms the participants produced for each verb. We classified produced forms that were not expected as either synonymous or novel and measured their optimal string alignment distance to expected forms. Our analyses revealed that a usage-based approach to paradigmatic defectivity fits better with the obtained results than a classical approach typically met in dictionaries and descriptive grammars. Thus, we argue, that paradigmatic defectivity can be better described as a dynamic rather than a static system, where gaps represent a continuum of possible inflectional choices rather than a lack of an inflectional variant. (shrink)

This special issue of Cognitive Linguistics reexamines the notions of uniformity and variability within morphological systems from a cognitive linguistic standpoint. It challenges traditional perspectives that regard morphological variability as mere deviations from the norm, suggesting instead that such variability is systematic and shaped by external influences including language acquisition and processing constraints. The contributions in this issue promote a shift from isolated analysis to a holistic view of paradigms, classes, and systems, advocating for a framework where morphological structures are (...) seen as integral to communicative and functional aspects of language. By accounting for the broad adaptive dynamics of language systems, the complex interplay between uniformity and variability is revealed as an inherent aspect of language usage. (shrink)

This article approaches defective and overabundant paradigm cells as an opportunity and pitfall for usage-based linguistics. Through reference to two production tasks involving native speakers of Czech, we show how definitions of these two categories are problematized when multiple forms per context are entrenched, or when pre-emption seems to occur in the absence of entrenchment: in other words, pre-emption occurs via entrenchment of uncertainty. We explain the results by adopting a broader, usage-based perspective. We examine the relationship between frequency (as (...) proxy for exposure) and reference-work information (as proxy for a priori structure) to assess their connection with our experimental results. We assign a role to frequency as helping to form perceptions of “suitable” and “unsuitable” forms, but also note places where non-frequency factors predominate. “Structure” as represented by reference-work recommendations appears to have no significant connection to our experimental results; we discuss reasons for this. (shrink)