When acquiring the English plural, children correctly produce plural words long before they develop an understanding of morphological structure. When acquiring Sesotho noun prefixes, children are aware of the multiple constraints governing variation from a young age. Both of these cases raise questions about the Shin and Miller (2022) account of…

Westergaard (2021) presents an updated account of the Linguistic Proximity Model and the micro-cue approach to the parser as an acquisition device. The property-by-property view of transfer inherent in this approach contrasts with other influential models that assume that third language (L3) acquisition involves the creation of a full copy of only…

The radical exemplar model resonates with work on perceptual classification and categorization highlighting the role of exemplars in memory representations. Further development of the model requires acknowledgment of both the fleeting and fragile nature of perceptual representations and the gist-based, good-enough quality of long-term memory…

My study (Lindseth, "The Effects of Form-Focused Instruction on the Acquisition of Subject-Verb Inversion in German") that was published in the Volume 49, No. 1 issue of "Foreign Language Annals" suggested that form-focused instruction that targets a specific structure may help learners progress faster toward accurate use of…

Michael Swan and Catherine Walter (see EJ1142765) take issue with the current emphasis in the teaching of listening and reading on higher-order skills-and-strategies training. They argue that L2 learners typically already possess the relevant skills and strategies necessary for listening and reading in L2, and, by implication, can and do deploy…

We respond here to Pienemann's critique of our study that appeared earlier this year in the Language Learning Special Issue entitled "Orders and Sequences in the Acquisition of L2 Morphosyntax, 40 Years On" and guest edited by Jan Hulstijn, Rod Ellis, and Søren Eskildsen. Pienemann objected to our claim that the Teachability Hypothesis…

Lieberman, Borovsky, Hatrak, and Mayberry (2015) used a modified version of the visual-world paradigm to examine the real-time processing of signs in American Sign Language. They examined the activation of phonological and semantic competitors in native signers and late-learning signers and concluded that their results provide evidence that the…

Amaral and Roeper (this issue; henceforth A&R) argue that all speakers -- regardless of whether monolingual or bilingual -- have multiple grammars in their mental language representations. They further claim that this simple assumption can explain many things: optionality in second language (L2) language behaviour, multilingualism, language…

There is a growing theoretical, empirical, and methodological debate in the SLA field as to whether unawareness plays a role during attention to or processing of new incoming second language (L2) data. Indeed, studies that have methodologically addressed the construct of unawareness in their research designs offer both empirical support (e.g.,…

In this commentary, the author defends the Multiple Grammars (MG) theory proposed by Luiz Amaral and Tom Roepe (A&R) in the present issue. Topics discussed include second language acquisition, the concept of developmental optionality, and the idea that structural decisions involve the lexical dimension. The author states that A&R's…

This article offers the author's commentary on the Multiple Grammars (MG) language acquisition theory proposed by Luiz Amaral and Tom Roeper in the present issue. Multiple Grammars advances the claim that optionality is a constitutive characteristic of any one grammar, with interlanguage grammars being perhaps the clearest examples of a…

Optionality is a central phenomenon in second language acquisition (SLA), for which any adequate theory must account. Amaral and Roeper (this issue; henceforth A&R) offer an appealing approach to it, using Roeper's Multiple Grammars Theory, which was created with first language in mind but which extends very naturally to SLA. They include…

Muysken argues for four general "strategies" that characterize language contact phenomena across several levels of description. These strategies are (A) maximize structural coherence of the first language (L1); (B) maximize structural coherence of the second language (L2); (C) match between L1 and L2 patterns where possible; and (D) use…

The article by Amaral and Roeper (this issue; henceforth A&R) presents many interesting ideas about first and second language acquisition as well as some experimental data convincingly illustrating the difference between production and comprehension. The article extends the concept of Universal Bilingualism proposed in Roeper (1999) to second…

Babcok et al. (2012) claim that Paradis (1994, 2004, 2009) argues that the reliance of late L2 learners on L1 neurocognitive mechanisms increases over time across both lexical and grammatical functions, namely for lexical items as well as rule-governed grammatical procedures, when in fact one can find repeated statements to the contrary in the…