“…A common pattern can be identified in historically unrelated languages, suggesting difficulties in the conduction of computational operations predicted to be costly regardless of language (Adams, 1990;Friedmann and Novogrodsky, 2004;Jakubowicz, 2004;Leonard et al, 2006;van der Lely and Battell, 2003). At the same time, there are selective impairments suggesting difficulties specific to a syntactic domain (Clahsen, 1999(Clahsen, , 2008Hamann et al, 1998;Marinis and van der Lely, 2007), and cross-language variation that point to problems in the identification of the particular grammatical properties of a language (Leonard, 1992;Bottari et al, 1996;Clahsen et al, 1997;Jakubowicz, 2011;Jakubowicz et al, 1998). This picture of SLI has defied across-the-board explanations centered on either processing or representational difficulties (Leonard, 1989;Gopnik, 1990;Gopnik and Crago, 1991).…”