Abstract
AbstractA large literature has shown that language context –mixing and switching between languages – impacts lexical access processes during bilingual speech production. Recent work has suggested parallel contextual effects of language context on the phonetic realization of speech sounds, consistent with interactions between lexical access and phonetic processes. In this pre-registered study, we directly examine the link between lexical access and phonetic processes in Spanish–English bilinguals using picture naming. Using automated acoustic analysis, we simultaneously gather measures of reaction time (indexing lexical access) and acoustic properties of the initial consonant and vowel (indexing phonetic processes) for the same speakers on the same trials. Across measures, we find consistent, robust effects of mixing and language dominance. In contrast, while switching effects are robust in reaction time measures, they are not detected in phonetic measures. These inconsistent effects suggest there are constraints on the degree of interaction between lexical access and phonetic processes.
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