Second Language Lexical Processing
My research focuses on second language lexical processing and its interplay with non-linguistic cognitive systems, including executive control and memory. I have investigated these issues using both behavioral and fMRI methods. For further information, please see the following representative papers:
Grant, A. & Dennis, N.A. (2017). Increased processing speed in young adult bilinguals: evidence from source memory judgments. Bilingualism: Language and Cognition, 20(2), 327-336. (direct link).
Grant, A., Fang, S., & Li, P. (2015). Second language lexical development and cognitive control: A longitudinal fMRI study. Brain and Language, 144, 35-47. (direct link).
Grant, A., Dennis, N.A. and Li, P. (2014). Cognitive control, cognitive reserve, and memory in the aging bilingual brain. Frontiers in Psychology, 5, 1401. (direct link).
Currently, I am working with Corey White at Missouri Western State University to evaluate the effectiveness of different drift-diffusion models of decision-making for executive control tasks including the Simon, Flanker, Stroop, and N-back. Drift-diffusion models offer a variety of benefits over classical RT measurements, and I hope to use these models to improve my assessment of the relationships between language and control processes.
Auditory Bilingual Language Processing
I complement my research on lexical processing with work investigating auditory language processing at the sentential and discourse levels. One project investigates bilingual speech processing in noise using EEG time-frequency analyses (see my SNL 2018 poster), as well as the relationships between brain structure (gray matter volume) and function (as assessed by the N400; see my SNL 2019 talk). The other aspect of this research uses event-related potentials (ERPs) to investigate younger and older bilinguals' relative sensitivity to lexical association and discourse congruence in each of their languages (see my CSBBCS 2018 talk for young adult data and my CNS 2019 poster for a comparison with older adults).