Dr. Tremblay's research primarily focuses on bilingual speech perception and spoken word recognition. Her main research program is couched within phonetic and psycholinguistic approaches to language comprehension in bilinguals, with three interconnected goals: (1) to determine how similarities and differences between a bilingual’s two sound systems affect speech perception and spoken word recognition; (2) to examine how linguistic experience shapes listeners’ weighting of acoustic information; and (3) to develop perceptual training stimuli and methods that enhance bilinguals’ speech perception and spoken word recognition. Much of her work addresses these issues through the study of prosodic information, with particular emphasis on lexical stress and intonation—two areas that remain underexplored in speech perception and spoken word recognition research. This research has been supported through two external grants from the National Science Foundation (Linguistics Program, BCS-1423905 and BCS-2016750). Beyond this research, Dr. Tremblay also published studies on bilingual speech production, morphological processing, and sentence processing.