Assistant Professor My main research interests include (1) the phonetics/phonology interface, in particular how phonetic cues can vary, how they shape phonological systems, and how they drive sound change over time, (2) sociophonetics and language variation and change, and (3) phonetic and phonological description and documentation. I approach these topics through research in speech perception and production, combining quantitative, computational, and experimental methods with fieldwork. Education Education: Georgetown University, PhD in Theoretical Linguistics (2021) Georgetown University, MS in Theoretical Linguistics (2017) Colgate University, BA in Spanish Language and Literature (2015) Research Areas of Interest: Language Documentation Phonetics and Phonology Sociolinguistics and Language Variation Specific Research Areas: The phonetics/phonology interface, laboratory phonology, experimental phonetics, speech perception, sociophonetics, language variation and change, American dialects, forensic linguistics Selected Publications Selected Publications: Du, B. & Pfiffner, A. M. (2026). The co-variance of acoustic cues and lip gestures in the production of the Mandarin sibilant contrast. Laboratory Phonology, 17(1), 1-40. https://doi.org/10.16995/labphon.20289 Pfiffner, A. M. (2025). Acoustic cues and obstruent devoicing in Minnesotan English. Publication of the American Dialect Society, 110(1): 1-33. https://doi.org/10.1215/00031283-10867196 Pfiffner, A. M. (2025). Women of all ages lead tonogenesis in Afrikaans. Journal of Germanic Linguistics, 37(3), 270-286.