Through an independent research study of her own design, Emily Knick ‘23 investigates how languages evolve and what such changes can teach us about how the brain produces and perceives language.

At UMass Amherst, Emily Knick ‘23 discovered a passion for something that is a fundamental part of the human experience, yet most people rarely contemplate: language.

“We wake up every day and go around talking to each other, yet there’s so much we don’t understand about how we actually do it,” she said. “There’s a whole world out there to explore.”

Knick’s path to linguistics didn’t follow a straight line. Originally from Richmond, Va., she enrolled in a biology program at a community college and began taking classes in Japanese for fun, inspired by her love of Japanese films. She found herself fascinated by the linguistic aspects of learning a new language and wanted to delve deeper. She transferred to UMass Amherst as a first-year student largely because of the Department of Linguistics’ stellar reputation: consistently ranked second in the world after MIT.

At UMass, Knick has been able to combine her dual interests in Japanese and linguistics in an independent research project that investigates a change taking place in the pronunciation of certain consonants in Tokyo Japanese, a dialect spoken by those who live or were raised in Tokyo. Knick approached her professor, John Kingston, with the idea for the research project, and he agreed to advise her.

According to Kingston, most linguistics majors are exposed to research. “By doing research as undergrads, our students get to explore whether they are interested in continuing on in research, which means potentially applying to graduate school—typically in linguistics, but also in computer science and other fields,” said Kristine Yu, associate professor, who also advises Knick. “They get a sense of the challenges and whether it’s something they love doing, and it gives them a piece of work to show when they apply to graduate school.”

Knick’s interest in her research topic grew out of a UMass course she took on phonetics.

“I became interested in how people hear consonants. For example, if I say the words ‘pot’ and ‘bot,’ a listener can distinguish the meaning of each word because of the way they hear the ‘p’ and the ‘b’ sounds,” she explained. “In different languages, different acoustic properties are varied in order to distinguish between consonant sounds.”

Knick designed a two-part study to investigate a phenomenon among speakers of Tokyo Japanese. Consonants known as “plosives”—like the sounds made by P, T, K, B, D, and G—were starting to sound more similar to each other. Yet, Knick said, “Listeners don’t seem to have trouble distinguishing them, which I find very strange!” She recorded speech from Tokyo Japanese-speaking participants of various ages and sexes, both in Japan and in the United States. Knick analyzed the voice recordings using a software that produces visual representations of speech. This first part of the study, which she completed during her junior year, confirmed the pronunciation change, both at the sentence and word level. The change appears to be led by younger speakers, and females in particular.

“Younger speakers are producing sounds with less of the vocal fold vibration, also known as pre-voicing, and are instead using a short little lag, or period of silence,” Knick said.

Praising Knick’s innovative research study, Kingston said, “It gets at fundamental questions: What is triggering these changes? Who is leading the changes? Who is following? We don’t have good ideas yet about why language changes at the moment it does. Studying this case helps us understand these questions better.”

Next, Knick plans to conduct a perception study to investigate how people hear the sound change.

“I’m fascinated by how the brain processes language,” said Knick. “A lot of past psycholinguistic work assumes that the way the mind tells the mouth how to produce sounds is the reverse of how sounds are perceived. Yet … whether or not this assumption is correct is still unknown. A good way to investigate this is through sound changes, as I’m doing in my research.”

Beyond deepening her understanding of linguistic concepts and developing new skills in statistics, programming, and encoding, Knick said conducting research has allowed her to hone many other abilities, including organization, clear communication of academic concepts to diverse audiences, and speaking her second language, Japanese, in a real-world context. In addition, she said, “I’ve had to become more flexible and accept that experiments never go perfectly. This has extended into many other areas in my life!”

Knick is exploring pursuing a PhD in linguistics or psychology/cognitive science to study speech perception and neurolinguistics, or working in the field of data science—another skill set she developed through research.

She advised any undergraduate who is considering doing research to reach out to their professors, even if they don’t see an open research position listed. “The worst they can do is say no, but you’d be surprised how often they say yes,” she said.

“Don’t be afraid to ask questions,” Knick asserted. “Research isn’t about knowing everything; research is about not knowing things and wanting to find out the answer."