This study investigates knowledge of gender agreement in Spanish L2 learners and heritage speakers, who differ in age and context/mode of acquisition. On some current theoretical accounts, persistent difficulty with grammatical gender in adult L2 acquisition is due to age. These accounts predict that heritage speakers should be more accurate on gender agreement than L2 learners, because their Spanish language acquisition started

The acquisition of the aspectual difference between the preterit and imperfect in the past tense and the acquisition of the contrast between subjunctive and indicative mood are classic problem areas in second language (L2) acquisition of Spanish by English-speaking learners (Collentine, 1995, 1998, 2003; Salaberry, 1999; Slabakova & Montrul, 2002; Terrell, Baycroft & Perrone, 1987). Similarly, Spanish heritage speakers in the U.S exhibit simplification of the preterit/imperfect contrast and incomplete acquisition/attrition of subjunctive morphology (Merino, 1983; Montrul, 2002, 2007; Potowski, Jegerski & Morgan-Short, 2009; Silva-Corvalán, 1994). This raises the question of whether the linguistic knowledge of a developing L2 learner is similar to incomplete L1 acquisition in heritage language (HL) learners. Because heritage speakers are exposed to the heritage language from infancy whereas L2 learners begin exposure much later, Au et al. (2002, 2008) have claimed that heritage speakers are linguistically superior to L2 learners only in phonology but not in morphosyntax. The present study reexamines this claim by focusing on the interpretation of tense, aspect and mood (TAM) morphology in 60 instructed HL learners and 60 L2 learners ranging from low to advanced proficiency in Spanish. Results of four written tasks showed differences between the groups both in tense and aspect and in mood morphology, depending on proficiency levels. Implications of these findings for heritage language instruction are discussed.

This paper investigates the acquisition of prepositional relative clauses in L2 Spanish by English and Arabic speakers to understand the role of previous linguistic knowledge and Universal Grammar on the one hand, and the relationship between grammatical knowledge and its use in real-time, on the other. An oral production task and an on-line self-paced grammaticality judgment task were analyzed. Results indicated that the acquisition of oblique relative clauses is a problematic area for L2 learners. Divergent results compared to native speakers in production and grammatical intuitions were found; however, L2 reading time data showed the same real-time effects that native speakers had, suggesting that the problems with this construction are not necessarily linked to processing deficits. These results are interpreted as evidence for the ability to apply universal processing principles in a second language, and the relative independence of the processing domain and the production system.

This study investigates the expression of Catalan cliticsenandhi, which have no grammatical equivalent in Spanish, in the adult grammar of Catalan-Spanish early bilinguals. Participants (N = 57), born and raised in Catalonia, are divided into 3 groups according to their onset of acquisition and language use: Spanish-dominant (n = 20), Balanced Bilinguals (n = 15) and Catalan-dominant (n = 22). The results of an Acceptability Judgment Task and an Elicited Production Task indicated that Spanish-dominant bilinguals have a divergent grammar compared to that of the Catalan-dominant speakers, overaccepting ungrammatical omission and doubling of the clitics. The bilingual group patterned with the Catalan-dominant group in some of their judgments, but with the Spanish-dominant group in their production. It is argued that onset of acquisition cannot be the only explanation for the differences between the bilingual groups, and that quantity and quality of input play an important role in the acquisition process.

This study reflects on the meaning of the results of a self-paced grammaticality judgment task that tested island configurations (with gaps and resumptive pronouns) in L1 and L2 speakers of Spanish. Results indicated that resumptive pronouns do not rescue extractions from islands, as traditionally assumed in grammatical theory, and propose that islands are essentially an interpretative or processing matter, and not only a grammatical one, as in Kluender (1998). This study further challenges the L2 studies that proposed that L2 learners are fundamentally different from native speakers because they usually fail to reject island configurations, and shows that L2 learners are sensitive to the same processing and interpretative mechanisms that native speakers employ to parse island configurations. Generally speaking, this study proposes that apparent purely syntactic restrictions such as extractions from islands might not depend on their grammatical formation, but on other relevant factors such as plausibility, embedding, and processability, which together with grammatical well-formedness configure a more holistic and useful notion of linguistic acceptability.