Indiana University Bloomington
Department of Second Language Studies  
English: Second Language Studies  

Meet the Faculty

Kenneth J. deJong

Photo of Kenneth J. deJongEducation

Contact Information

Memorial Hall 404
Indiana University
Bloomington, Ind. 47405
Phone: (812) 856-1307

Research Interests

Prosodic systems in Natural Human Communication, Second Language Production & Perception, Speaking/Listening and Variation across Individuals, Phonetic Facts as Historical Pressures. Please click here for information and materials on second language acquisition as it relates to my research projects.

Personal Statement

The Nature of Prosodic Systems in Natural Human Communication.
How do stress, intonation, and syllabic parsing effects get conventionalized in languages, and how do they function? Stress: how does it differ across languages, and how does it interact with segmental contrast in production and perception? Syllabification: how does syllabification affect segmental production and perception, and how does it interact with production pressures? This project has been supported by grants from the National Science Foundation and National Institutes of Health.

Second Language Production and Perception.
There is a lot to learn about how to predict what effects will arise with second language hearers and perceivers. What we do know, shows that learners are very different from one another, and such variation seems very useful for understanding the relationship between speaking, listening, and the linguistic system.

The Relationship between Speaking and Listening and Variation across Individuals.
How segments get perceived isn’t always the same as how they get produced. Also, different individuals exhibit differences in how they encode acoustic effects in their production systems. Finally, differences in these individuals is known and accounted for by listeners. This variation has got to be important in determining how a linguistic system works, but I’m not sure how, and am sure curious about it.

Phonetic Facts as Historical Pressures.
We know that various aspects of speaking and listening get recoded in the structure of a linguistic system, but how? Many likely mechanisms require lots of time, implicating historical linguistics as an important discipline for would-be phoneticians and phonologists. But how does the historical process work, and how much is involved in individual speakers and listeners here and now?

Courses Recently Taught


de Jong, K. J. (In press). "Temporal Structure and the Nature of Syllable-level Timing Patterns." Papers in Laboratory Phonology 9.

Nagao, K. and K. J. de Jong (2007). "Perceptual Rate Normalization in Naturally Produced Rate-varied Speech". Journal of the Acoustical Society of America, 120: 2882-2898.

Clopper, C.G., D.B. Pisoni, and K.J. de Jong (2005). “Acoustic Characteristics of the Vowel Systems of Six Regional Varieties of American English.” Journal of the Acoustical Society of America, 118: 1661-1676.

de Jong, K.J., B.J. Lim, and K. Nagao (2004). “The Perception of Syllable Affiliation of Singleton Stops in Repetitive Speech.” Language and Speech, 47: 241-266.

de Jong, K.J. (2004). “Stress, lexical focus, and segmental focus in English: Patterns of variation in vowel duration.” Journal of Phonetics, 32: 493-516.

de Jong, K.J. (2003). “Temporal Constraints and Characterizing Syllable Structuring.” In J. Local, R Ogden, and R. Temple (eds.), Papers in Laboratory Phonology 6. Cambridge: Cambridge University Press. Pp. 253-268.

de Jong, K.J. & B.A. Zawaydeh (2002). “Comparing Stress, Lexical Focus, and Segmental Focus: Patterns of Variation in Arabic Vowel Duration.” Journal of Phonetics, 30: 53-75.

de Jong, K.J. (2001). “Effects of Syllable Affiliation and Consonant Voicing on Temporal Adjustment in a Repetitive Speech Production Task.” Journal of Speech, Language, and Hearing Research, 44: 826-840.

de Jong, K.J. (2001). “Rate-induced Resyllabification Revisited.” Language and Speech, 44: 197-216.

de Jong, K.J., and S.G. Obeng (2000). “Labio-Palatalization in Twi: Prosodic, Contrastive, and Quantal Effects on Linguistic Micro-evolution.” Language, 76(3): 174-195.

de Jong, K.J. and B.A. Zawaydeh (1999). “Stress, Duration, and Intonation in Arabic Word-level Prosody.” Journal of Phonetics, 27: 3-22.

de Jong, K.J. (1998). "Stress-related Variation in the Articulation of Coda Alveolar Stops: Flapping Revisited". Journal of Phonetics, 26: 283-310.