Orthographic effects in speech production: A psycholinguistic study with adult Brazilian-Portuguese English Bilinguals

Abstract

The present study inquired whether orthography affects phonological processing of English as an L2. To do so, a lexicon that simulated opaque and transparent grapho-phonic English relations in nuclear position was developed (e.g., keet, deit, toud). Bilingual speakers of Brazilian Portuguese and English were compelled to learn this new lexicon through a repeated-exposure training paradigm in which they were introduced to the lexicon phonological forms associated with their visual forms, and then to the phonological forms associated with their visual and orthographic forms. After undergoing training, subjects were tested with a Timed Picture Naming task to investigate orthographic recruitment in spoken production. Results suggested that orthography influenced naming of the trained words, indicating that the process of converting a visual input into its phono-articulatory representations for production involves orthographic activation. Such a finding was interpreted as a frequency effect of the grapho-phonic combination, which resulted in lack of skill to compute this operation in the sublexical route. Overall, the presence of orthographic effects in this task can be interpreted as evidence for such a system to function as a strategic mechanism that aids lexical encoding and, consequently, influences lexical access in initial stages of instructed language acquisition.