Second language (L2) fluency research has suggested that a range of linguistic knowledge and processing speed serve as cognitive fluency (CF) underlying L2 utterance fluency (UF). Building on prior CF-UF link studies, this study explored L2 collocational processing speed and accuracy as underlying CF measures. This study also explored the phrasal frequency effect on the relationship between collocational processing speed and UF to test whether the processing speed of higher-frequency collocations is more strongly related to UF. A total of 108 Japanese university students completed a phrasal acceptability judgment task with adjective–noun collocations pooled from the Academic Collocation List. Speech was elicited in an argumentative speech task, and UF measures were computed based on speed, breakdown, and repair fluency. The results revealed that the collocational processing speed was weakly tied to articulation rate and mid-clause and end-clause silent pause ratio (rho = |.271–.322|), while the collocational processing accuracy was weakly to moderately tied to most UF measures except filled pause ratio (rho = |.281–.368|). The collocation frequency moderated the relationship between the processing speed and UF, suggesting that high-frequency collocations served as a proxy for automaticity in speech production. Implications for CF-UF link research are discussed.

This paper presents a usage-based method for investigating metaphor acquisition in the speech of children aged two and above. The method draws on the strengths of the established tools for metaphor identification such as Metaphor Identification Procedure (MIP), and Metaphor Identification Procedure VU University Amsterdam (MIP-VU), and adapts them for coding and analysing metaphors in the corpora of naturalistic interactions between children and their primary caregivers, such as those stored online in the CHILDES TalkBank. First, we discuss the premises underlying our methodological framework and provide a coding manual for working with child language. Second, we explain how to approach the challenges of coding transcripts of child speech and demonstrate how we reached high inter-annotator reliability scores of 0.97. We then show how the coding scheme works with a sample corpus of a child recorded between the ages of 2;0–3;1. To illustrate how the scheme can be applied to the study of metaphor acquisition, we analyse the coded metaphors for input–output frequencies. It is argued that our method can offer a unique lens for exploring metaphor production in very young children and it can help us to understand how children come to express their very first figurative meanings.

This paper presents a usage-based cognitive approach to the different rates at which Icelandic masculine forms in nominative/accusative plural -ur are reanalysed as feminine. Of the 14.92% of nouns in plural -ur, 91.89% are feminine, others masculine. Syncretism in nominative/accusative plural is exceptionless among feminines, but relatively rare among masculines. Interestingly, plurals such as masculine eigendur ‘owners’, fætur ‘feet’, vetur ‘winters’ occasionally yield the feminine outputs definite eigendur-nar, fætur-nar, vetur-nar, and are sometimes modified by feminine forms of adjectives and determiners. As the full set of forms in plural -ur is highly schematic, we might expect reanalysis – viewed as a property of a schema’s productivity – to correlate proportionately with the frequency of corresponding masculine forms. However, corpus data for Icelandic betray a mismatch. Through a network model approach that emphasises prototype structure, minimal schematicity is shown to impact the rate of reanalysis by means of a gang effect.

Constructivist approaches to language acquisition predict that form-function mappings are derived from distributional patterns in the input, and their contextual embedding. This requires a detailed analysis of the input, and the integration of information from different contingencies. Regarding the acquisition of morphology, it is shown which types of information leads to the induction of (lexical) categories, and to paradigm building. Regarding the acquisition of word order, it is shown how languages with fixed or variable word order profit from stable syntactic hyperschemas, but require a more detailed analyses of the form-function contingencies to identify the underlying, more specific semantic, syntactic and morphological patterns. At a theoretical level, it is shown how findings from acquisition and processing converge into new linguistic theories that aim to account for regular as well as irregular phenomena in language.

Reaction times for a translation recognition study are reported where novice to expert English–ASL bilinguals rejected English translation distractors for ASL signs that were related to the correct translations through phonology, semantics, or both form and meaning (diagrammatic iconicity). Imageability ratings of concepts impacted performance in all conditions; when imageability was high, participants showed interference for phonologically related distractors, and when imageability was low participants showed interference for semantically related distractors, regardless of proficiency. For diagrammatically related distractors high imageability caused interference in experts, but low imageability caused interference in novices. These patterns suggest that imageability and diagrammaticity interact with proficiency – experts process diagrammatic related distractors phonologically, but novices process them semantically. This implies that motivated signs are dependent on the entrenchment of language systematicity; rather than decreasing their impact on language processing as proficiency grows, they build on the original benefit conferred by iconic mappings.

Usage-based approaches to language acquisition posit that first (L1) and second language (L2) speakers should process more frequent compositional phrases, which have a meaning derivable from word parts, faster than less frequent ones (e.g., Bybee, 2010; Ellis, 2011). Although this prediction has received increasing empirical support, methodological limitations in previous relevant studies include a lack of control of frequencies of subparts of target phrases and scant attention to L2 production. Addressing these limitations, the current study tested phrase frequency effects in both language comprehension and production in two respective experiments, in which adult native English speakers (N = 51) and English L2 learners (N = 52) completed a timed phrasal decision task and an elicited oral production task. Experiment 1 revealed phrase frequency effects in both groups, lending support to usage-based researchers’ proposal that L1 and L2 speakers retain memory of word co-occurrences and that compositional phrase processing reflects an accumulation of statistics in previously encountered input. Experiment 2, however, provided weaker evidence for phrase frequency effects in these participant groups. Based on the results and previous empirical studies, methodological issues that may have impacted frequency effects and implications for future work in this area are discussed.

According to usage-based approaches to language acquisition, linguistic constructions should display prototype effects, or graded category membership (e.g., Bybee, 2010). Using the prototype-plus-distortion methodology (Franks & Bransford, 1971), Ibbotson, Theakston, Lieven, and Tomasello (2012) have provided evidence for prototype effects in adult native English speakers, who had false-positive recognition of sentences with prototypical transitive semantics as having been previously encountered after being exposed to non-prototypical transitive semantics. In the current study, I adopted this methodology and investigated whether the effects can be replicated and additionally observed from English-as-a-second-language (ESL) learners. Results from two groups of adult native English speakers (N=20 and N=21), each exposed to a different stimuli set, suggested some, but not strong, effects and revealed the complexity of the use of this methodology with linguistic materials. Moreover, no effects were observed from advanced adult ESL learners (N=22), suggesting possible differences between first and second transitive semantic representations.