# An integrative approach to bilingual cognition: preliminary insights into phonetic learning and sensorimotor adaptation

## TL;DR

This study explores how bilingualism affects cognitive abilities like speech learning and memory, finding that high-proficiency bilinguals perform better in certain tasks.

## Contribution

The study introduces a new method using real-time MRI to examine articulatory behavior in bilingual cognition with minimal manual processing.

## Key findings

- High-proficiency bilinguals outperformed monolinguals in phonetic and articulatory learning tasks.
- High bilinguals showed stronger primacy effects in memory tasks at moderate sequence lengths.
- Real-time MRI is feasible for studying articulatory behavior in bilingual cognition with minimal post-processing.

## Abstract

This study investigates the cognitive consequences of bilingualism by examining phonetic learning, speech motor adaptation, and verbal memory.

Early Spanish-English bilinguals divided into high and intermediate proficiency groups and English monolinguals completed three tasks: (1) production of an artificial English accent with novel phonotactic rules, (2) serial digit span in English, and (3) production of unfamiliar speech sounds during real-time magnetic resonance imaging (rtMRI).

Bilinguals, particularly those with high proficiency, outperformed monolinguals in phonetic and articulatory learning. In the memory task, no group-level differences emerged overall, but high bilinguals showed stronger primacy effects at moderate sequence lengths, suggesting more efficient encoding.

These results support a shift toward investigating task-specific and process-based effects of language experience. We also demonstrate the feasibility of using rtMRI to assess articulatory behavior in cognitive studies of bilingualism, with minimal need for manual post-processing.