Link to this article: http://journals.cambridge.org/abstract_S136672890999054XHow to cite this article: CRISTINA FLORES (2010). The effect of age on language attrition: Evidence from bilingual returnees. Bilingualism: Language and Cognition, 13, pp 533-546The present study investigates the syntactic competence of bilingual Portuguese-German returnees who have lost regular contact with their L2 (German). The main criterion which distinguishes the participants is the age of input loss. This allows their division into two main groups: speakers who lost German input during early childhood (between ages seven and ten) and speakers who were eleven or older when they moved away from the German environment. Focusing on verb placement in main and embedded clauses, the available data show strong evidence of the existence of a stabilization phase following the acquisition period. The speakers who lost L2 input earlier than age eleven show significantly more syntactic deficits than the other speakers. However, the observed attrition effects seem to be the result of insufficient L2 activation, rather than the expression of undergoing competence loss.

The present study analyzes the effect of age and amount of input in the acquisition of European Portuguese as a heritage language. An elicited production task centred on mood choice in complement clauses was applied to a group of fifty bilingual children (six- to sixteen-year-olds) who are acquiring Portuguese as a minority language in a German dominant environment. The results show a significant effect of the age at testing and the amount of input in the acquisition of the subjunctive. In general, acquisition is delayed with respect to monolinguals, even though higher convergence with the monolingual grammar is observed after twelve years of age. Results also reveal that children with more exposure to the heritage language at home show faster acquisition than children from mixed households: the eight- to nine-year-old age boundary seems relevant for those speakers with more exposure, and the twelve- to thirteen-year-old age boundary for those with less exposure.

This paper focuses on the linguistic competence of adult Portuguese-German bilinguals in their heritage language, European Portuguese (EP), which they acquired at home in early childhood in the context of German as the majority language. Based on a grammaticality judgment test, we investigate their morphosyntactic knowledge of clitics. The central questions are whether possible deviations from native monolinguals may be traced back to a) lack of contact with the formal register; b) reduced input after preschool age; and c) cross-linguistic influence. The results reveal qualitative differences between the heritage speakers and a group of monolingual controls in almost all test conditions. We conclude that although the linguistic knowledge of the heritage bilinguals investigated in this study differs from that of monolinguals, it is not "deficient" but "different" and "innovative", because it is primarily based on the spoken variety of the language and because it promotes linguistic changes which are inherent in the speech of native monolinguals.

This article examines the competence of heritage speakers of Portuguese living in Germany with respect to clitic placement in Portuguese by comparing their performance with that of monolingual speakers of the same age (7-15 years of age) in a test designed to elicit oral production data. The results of the study indicate that the heritage speakers go through stages in the acquisition of clitic placement that are similar to those of monolingual acquirers even though they take longer to attain the target grammar.

This paper is based upon a longitudinal study of L2 attrition in a bilingual child who grew up in an L2 migration background (Germany) and moved to the country of origin (Portugal) at the age of nine, experiencing a dominance shift from the L2 to the L1. The study aims to analyze the effects of language loss in L2 German. Data collection started 3 weeks after the child's immersion in the Portuguese setting and ended 18 months later. Results show first effects of language attrition after 5 months of reduced exposure to German; 18 months later the informant showed severe word retrieval difficulties and was unable to produce complete sentences in her L2. The findings thus confirm the conclusions of other studies on child language attrition, which attest to strong effects of attrition when the loss of contact with the target language occurs in childhood.

This study investigates the differential effects of language attrition in two diverse linguistic domains: verb placement and object expression. Linguistic phenomena at the syntax -discourse interface, such as object expression, have been shown to be more vulnerable to attrition than narrow syntax properties, such as verb placement. This study aims to test this hypothesis by analysing spoken data from Portuguese-German bilinguals who have moved away from the dominant German environment. The results show that the speakers who have lost continued German input after the age of 11 exhibit difficulties regarding object expression in German but do not reveal any relevant syntactic deficits in the domain of verb placement.in the domain of verb placement in the speech corpus of the German-Jewish attriters that she analysed. The English-German adult bilinguals studied by Altenberg (1991) also demonstrate «a firm grasp of syntax» (p.192) in their L1 German, especially in the domain of verb placement, even after forty years of residence in the US.The present study examines the differential status of interface-related phenomena, by comparing the syntactic behaviour of bilingual attriters regarding two distinct phenomena; the use of topic objects, a property which involves both syntax and discourse (Avrutin, 1999), on the one hand, and a narrow syntactic property (verb placement in German), on the other hand.

This article discusses the dynamic nature of childhood bilingualism by analyzing oral speech from returnee heritage speakers (HSs) of Portuguese, who grew up in Germany, but moved to Portugal in childhood/adolescence. The first dataset from 14 speakers showed that the length of exposure to German predicted the rate of (in)accurate production of nominal inflection, indicating that the speakers’ morphological knowledge had not been sufficiently stabilized due to the return. The second dataset is from one returnee HS who was reimmersed in the German environment after a 4‐year stay in Portugal. The comparative analysis of the speaker's performance 13 months after moving away from Germany and 11 months after being reexposed to German revealed a significant decrease of inaccurate case, gender, and plural marking, which supports the hypothesis of restabilization of linguistic knowledge. Overall, the findings emphasize the effects of lack of exposure on the development of HSs’ bilingual competence.

Understanding heritage language acquisition. Some contributions from the research on heritage speakers of European Portuguese.