Lab I direct the Speech Perception and Production Lab at the UO. For more information on our lab, you can check out our website. The lab is located on the 3rd floor of the Center for Medical Education and Research building in Eugene, located at 722 E 11th Avenue. Our sound booth is located in shared space within the Language Variation and Computation Lab suite on the 2nd floor of CMER. If you are a current undergraduate student interested in volunteering or working in the lab, are interested in pursuing a PhD in the lab, or are interested in pursuing postdoctoral research with me, please e-mail me.
- Speech perception
- Speech production
- Non-native speech
- Laboratory phonology
- Second language acquisition
Relationship between perception and production
In order to successful use a language, a learner must be able to both perceive and produce that language. How do perception and production systems interact with each other? How does this relationship change as a person learns a language? How can we account for dissociations between perception and production (i.e., cases where a learner can produce something they cannot perceive and vice versa)? How does training in one modality influence training in the other?
Variability in production
A common intuition is that non-native speech is more variable than native speech; however, variability is not always a bad thing. In fact, in native speech, variability often indexes a high degree of control over the language, allowing for style-shifting, etc. Are non-native speakers always more variable than native speakers? If not, what predicts when a speaker will be variable? And what are the implications for variability in native speech on our understanding of the target for non-native speech?
Lexically conditioned phonetic variation
Lexical properties of a word (e.g., neighborhood density or frequency) influence the phonetic properties of that word. What lexical properties, specifically, influence phonetic variation? What are the mechanisms underlying this variation?
Perception of speech in adverse conditions
Listening to speech in adverse conditions is often a challenge for listeners. This is true for both talker based conditions (i.e., a non-native speaker) and environmental conditions (i.e., noisy situations). How do listeners overcome this challenge? Are all types of degradations equally difficult for listeners? What other cognitive skills are correlated with listeners' ability to perceive degraded speech?
Expectations in speech perception
Listeners use a variety of cues when perceiving speech, integrating both knowledge- and signal-based information to determine their final percept of speech. How does the context in which we hear speech influence our perception? Here we examine a range of factors including context speaking rate, native language background of the speaker, and grammaticality of the utterance, and ask how these factors influence perception and interact with one another.