. She is a researcher in variationist linguistics and has extensively worked on the morphosyntactic variation in new varieties of Dutch, but also on bilingualism, bilingual acquisition and idiolects. Her work includes a wide range of morphosyntactic topics as gender, aspectual markers, argument structure and verbal clusters. Her most recent research projects deal with vocabulary acquisition by young bidialectal children and their cognitive developments and the construction of social and local identities through language practices in the Dutch province of Limburg.From your perspective, what are the relevant levels of abstractness to approach the Faculty of Language? The standard ones (namely "language", "dialect" and "idiolect")? Others? I'm working within the variationist sociolinguistics paradigm. According to Labov (2010), "the central dogma of sociolinguistics (is) that the community is conceptually and analytically prior to the individual. This means that in linguistic analysis, the behavior of an individual can be understood only through the study of the social groups of which he or she is a member. Following the approach outlined in Weinreich et al. 1968, language is seen as an abstract pattern located in the speech community and exterior to the individual. (…) The human language faculty, an evolutionary development rooted in human physiology, is then viewed as the capacity to perceive, reproduce and employ this pattern." In my research, the level of abstractness concerns idiolects and, in particular, syntactic variation located within the idiolect. But the phenomenon of intra-individual variation is always examined in relation to other individuals or groups the speaker identifies with, etc.
What are the main advantages / reasons to study linguistic variation?First of all, we cannot study anything else than variation since variation is the essential property of language and it is the Faculty of Language (i.e. the linguistic system, understood as abstract processes and representations) that brings about variation. It is no longer controversial to claim that properties of individual grammars differ. To cite Kayne (1996:xv-xvi): "(…) there must be many more varieties of English than is