Abstract

A major question in L1 attrition research is whether cross-linguistic influence from a speaker’s second language onto their first constitutes only a temporary, superficial effect or whether it can also lead to a structural change, often discussed as a distinction between effects on language processing as opposed to changes to the mental representation of grammatical properties. Some have argued that L1 grammars of adult L2 speakers are entirely impervious to change, while others stated that some of the available findings can be interpreted as grammatical representations themselves being vulnerable. This paper contributes to the question of how we can distinguish between these two types of attrition. I argue that it is challenging to use behavioral differences across tasks as well as experimental results showing optionality between L1 and L2 options to distinguish between a superficial and a structural change. Instead, situations where properties of an attriter’s L1 grammar converge on the L2 constitute the clearest case of structural change as these cannot be explained as temporary effects of L2 influence. Using data from an earlier study on attrition found in Romanian native speakers living in Italy, I furthermore challenge the claim that L2 convergence only occurs in rare situations where attriters lose contact with the L1. To better understand the contexts in which attrition at the level of representation may be possible, I suggest that future studies focus on (1) a variety of linguistic properties where the L1 allows a grammatical construction or interpretation also in situations where it is not used in the L2, (2) properties where options from both the L1 and the L2 are less likely to co-exist in an attritred grammar and (3) consistently include analyses of individual response patterns.

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