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…

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…

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…

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…

Ute Bohnacker's (2006) article on the acquisition of the verb second (V2) property in German by native speakers of Swedish (also a V2 language) is an attempted rebuttal of Hakansson et al.'s (2002) work on first language (L1) transfer and aspects of the underlying theory on which the work is based: Processability Theory (Pienemann, 1998). The…

This article discusses three claims of the Graded Salience Hypothesis presented in Rachel Giora's book "On our mind". It is argued that these claims may give second language researchers the chance to revise the way they think about word meaning, the literal meaning-figurative meaning dichotomy and the role of context in language…

Raises a series of problems that attach to the standard analysis of input to learning as the stimulus array minus unattended-to information, where attention is construed as a selection function. Demonstrates the inadequacy of this distinction as the foundation for a theory of input in second-language acquisition. (Author/VWL)

Replies to Mellow's (1996) criticism of the authors' second language acquisition model. The article argues that this model is based on the psychological concept of exchange of linguistic information and that Mellow's evaluation of various types of transformational analysis is irrelevant. The article also addresses several points of detail in…