Effects of Language Dominance in Spanish-English Bilingual Speakers

Abstract

Despite the rise of globalization and increasing multilingualism, the effect of language dominance on thought and perception in bilingual speakers has received little attention. This study examines the semantic networks of Spanish-English bilingual adults and monolingual English-speaking peers to determine whether language dominance structures the semantic space of a bilingual speaker to more closely match the semantic space of a monolingual speaker of the dominant language. It is predicted that semantic ratings produced by English-dominant bilinguals will correlate more closely to the semantic ratings of monolingual English-speaking participants than ratings produced by Spanish-dominant bilinguals. Spanish-English bilinguals (n=20) completed the Bilingual Language Profile regarding language use, attitudes, and fluency (Birdsong, Gertken, & Amengual, 2012). Spanish-English bilingual participants and monolingual English-speaking participants (n=20) then rated a series of translationally equivalent nouns (n=80) according to sound, color, morality, valence, size, and position. Using these ratings, a Euclidean distance matrix containing the ratings of English-dominant bilinguals, Spanish-dominant bilinguals, and English monolinguals was analyzed within and between groups using hierarchical cluster analysis, matrix comparisons (Mantel Tests), Spearman correlations, and qualitative k-means clustering analysis. Results suggest the possibility of dynamic interconnection between languages, with semantic connection weights determined by the dominant language (Malt et al, 2015). However, more research is needed to draw firm conclusions.