Post written by Jennifer Austin, María Blume & Liliana Sánchez authors of Bilingualism in the Spanish-Speaking World.
Bilingualism, and how it affects language and cognitive development, is a topic of increasing relevance in an interconnected world. In Bilingualism in the Spanish-Speaking World, we examine how the outcomes of bilingualism are shaped by factors at the individual level, such as age of acquisition and the amount and type of input, as well as societal support for the minority language in the form of dual-language education and similar initiatives. By analyzing previous research on the effects of these variables on bilingual speakers’ linguistic representations, as well as their minds and brains, we have attempted to provide a better understanding of some emerging conceptual views of the bilingual speaker. We also discuss how societal maintenance of bilingualism differs within the three multilingual communities which are the focus of this book: Peru, Spain and the United States. The status of Spanish varies between these regions; in Peru and the Spanish Basque Country, Spanish is a high-status, majority language, and in the United States, it is a minority language with varying degrees of prestige. While these three communities are linked by the common thread of bilingualism in Spanish, they provide diverse perspectives on the experience of being bilingual in distinct cultural, political, and socioeconomic contexts.
In the first chapter of the book, we examine how the concept of bilingualism has evolved from early definitions which included the expectation that bilinguals should behave like monolinguals, as in Bloomfield’s definition of bilingualism as the “native-like control of two languages” (Bloomfield 1933: 55-56). Increasingly, contemporary theories of bilingualism view differences between bilinguals and monolinguals as expected and normal, rather than deficiencies on the part of the bilingual. In addition, we discuss how heritage speakers challenge previous expectations regarding bilingualism, namely that the first language acquired is always the dominant one (the “mother tongue”), as well as the language that is acquired in a “native-like” fashion.
In the second chapter, we discuss recent research showing that the two languages of a bilingual are highly interconnected at the lexical, syntactic and phonological levels. We also review evidence that the continual interaction between the languages of a bilingual has important repercussions for cognitive development in bilingual children beginning early in infancy. These include enhanced executive function skills stemming from bilinguals’ need to monitor and inhibit one of their languages, as well as enhanced literacy abilities for bilingual children acquiring same-script languages. Bilingualism also produces neuroanatomical changes in multilingual speakers, including enhanced subcortical auditory processing and increased grey matter density in the inferior parietal cortex, an effect that is modulated by language proficiency and age of acquisition. Finally in the second chapter we presented evidence regarding the factors that affect L1 and L2 attrition in bilinguals, including age of second language immersion, availability and type of input, and proficiency levels in each language.
The third chapter examines several theories which have been proposed to account for lexical and syntactic development in bilingual children and adults. While early theoretical accounts assumed that lexical and syntactic development occurred separately, more recent approaches have proposed that their acquisition is interconnected, a theoretical linguistic advance which finds empirical support in the studies of the bilingual lexicon by cognitive psychologists. In this chapter we also present research findings that have allowed the field of bilingualism to move from initial debates on unitary versus binary systems of representation to a more nuanced view of the development of the bilingual lexicon and syntax that involves the interplay of different language subcomponents.
The overall picture that emerges from this book is thatthe cognitive and linguistic effectsof bilingualism illustrate just how complex the representation and processing of language are in the human mind in ways that go beyond accounts based solely on the study of monolinguals.
To find out more about this new book published by Cambridge University Press please click here