Randy L Diehl
Professor — Ph.D., University of Minnesota
Professor, David Bruton Jr. Regents Chair in Liberal Arts, Dean of the College of Liberal Arts
Psycholinguistics, cognition, and speech perception
Randy Diehl received his Ph.D. in Psychology from the University of Minnesota. He is a Professor in the area of Cognition and Perception and is a member of the Center for Perceptual Systems. Diehl's research focuses on the perception and production of speech sounds and on auditory category learning. Various methods are used including: acoustic analysis of natural speech, perceptual identification and discrimination of synthetic speech stimuli and of analogous non-speech stimuli, computational modeling of the representation of speech sounds in the auditory nerve and estimation of auditory distances among sounds, simulations of preferred speech sound inventories using a criterion of maximal auditory distance. We are currently applying Bayesian statistical decision theory in the analysis of tasks that involve learning of novel auditory categories (including both non-speech categories and second language sound categories) as well as tasks that involve recognition of sounds from one's first language.
A list of publications can be found on the Diehl Lab web site.
Kingston J., Diehl R.L., Kirk C. & Castleman W. (2008, September) On the internal perceptual structure of distinctive features: The [voice] contrast. Journal of Phonetics, 36, 28-54.
Diehl R., Lott A. & Holt L. (2004, September) Speech Perception. Annual Review of Psychology, 55, 149-179.
Diehl, R. & Lindblom, B. (2004) Explaining the structure of feature and phoneme inventories. In S. Greenberg, W. Ainsworth, A. Popper & R. Fay (Eds.), Speech Processing in the Auditory System (pp.101-162). New York: Springer-Verlag.
Wong P. & Diehl, R.L. (2003, September) Perceptual normalization for inter- and intra-talker variation in Cantonese. Journal of Speech, Language, and Hearing Research, 46, 413-421.
Geisler W.S. & Diehl R.L. (2003, September) A Bayesian approach to the evolution of perceptual and cognitive systems. Cognitive Science, 118, 1-24.
Papanicolaou A., Castillo E., Breier J., Davis R., Simos & Diehl R.L. (2003, September) Differential brain activation patterns during perception of voice and tone onset time series: A MEG study. Neuroimage, 18, 448-459.
Diehl R., Lindblom B. & Creeger C. (2003) Increasing realism of auditory representations yields further insights into vowel phonetics. Causal Publications Adelaide, Vol. 2, pp. 1381-1384.
Maddox W.T., Molis M. & Diehl R. (2002, September) Generalizing a neuropsychological model of visual categorization to auditory categorization of vowels. Perception & Psychophysics, 64, 584-597.
Geisler W.S. & Diehl, R.L. (2002, September) Bayesian natural selection and the evolution of perceptual systems. Philosophical Transactions of the Royal Society of London: Biological Science, 357, 419-448.
Wong P. & Diehl, R.L. (2002, September) How can the lyrics of a song in a tone language be understood. Psychology of Music, 30, 202-209.
Diehl, R., Molis, M. & Castleman, W. (2001) Adaptive design of sound systems: Some auditory considerations. In K. Johnson & E. Hume (Eds.), The Role of Perceptual Phenomena in Phonological Theory (pp.123-139). San Diego: Academic Press.
Maddox W.T., Molis M. & Diehl R.L. (2001) Generalizing a neuropsychological model of visual categorization to auditory categorization of vowels. Proceedings of the Workshop on Speech Recognition as pattern Classification, Nijmegen, 85-90.
Breier J., Gray L., Fletcher J., Diehl R., Klaas P., Foorman B. & Molis M. (2001, September) Perception of voice and tone onset time continua in children with dyslexia with and without attention deficit/hyperactivity disorder. Journal of Experimental Child Psychology, 80, 245-270.
Diehl, R. (2000, September) Searching for an auditory description of vowel categories. Phonetica, 57, 267-274.
Redford M. & Diehl R.L. (1999, September) The relative perceptual distinctiveness of initial and final consonants in CVC syllables. Journal of the Acoustical Society of America, 106, 1555-1565.
Hay J. & Diehl R.L. (1999) Effect of duration, intensity, and F0 alternations on rhythmic grouping. Proceedings of the International Congress of Phonetic Sciences, San Francisco, pp. 245-248.
Diehl, R. (1998, September) Locus equations: A partial solution to the problem of consonant place perception. Behavioral and Brain Sciences, 21, 264.
Simos P., Diehl R.L., Breier J., Molis M., Zouridakis G. & Papanicolaou A. (1998, September) MEG correlates of categorical perception of a voice onset time continuum in humans. Cognitive Brain Research, 7, 215-219.
Molis M., Diehl R.L. & Jacks A. (1998) Phonological boundaries and the spectral center of gravity. Proceedings of the 16th International Congress on Acoustics and the 135th Meeting of the Acoustical Society of America, 2019-2020.
Wong P. & Diehl R.L. (1998) Effect of spectral distance on vowel perception. Proceedings of the 16th International Congress on Acoustics and the 135th Meeting of the Acoustical Society of America, 2015-2016.
Diehl R.L., Lindblom B., Hoemeke K. & Fahey R. (1996, September) On explaining certain male-female differences in the phonetic realization of vowel categories. Journal of Phonetics, 24, 187-208.
Fahey R., Diehl R.L. & Traunmuller, H. (1996, September) Perception of back vowels: Effects of varying F1-F0 distance. Journal of the Acoustical Society of America, 99, 2350-2357.
Fahey R. & Diehl R.L. (1996, September) The missing fundamental in vowel height perception. Perception & Psychophysics, 58, 725-733.
Castleman W. & Diehl R.L. (1996, September) Effects of fundamental frequency on medial and final [voice] judgments. Journal of Phonetics, 24, 383-398.
Diehl R.L. & Castleman W. (1996) Integrated perceptual properties: The affricate/fricative distinction. In A.P. Simpson & M. Pätzold (eds.), Sound Patterns of Connected Speech: Proceedings of the Symposium Held at Kiel University on 14-15 June 1996 (pp. 191-200). Institut für Phonetik und digitale Sprachverarbeitung, Universität Kiel, Arbeitsberichte #31.
Diehl, R. & Molis, M. (1995, September) Effects of fundamental frequency on medial [voice] judgments. Phonetica, 52, 188-195.
Kingston J. & Diehl R.L. (1995) Intermediate properties in the perception of distinctive feature values. In B. Connell & A. Arvaniti (Eds.), Phonology and phonetics: Papers in laboratory phonology IV (pp.7-27). Cambridge: Cambridge University Press.
Balise R. & Diehl R.L. (1994, September) Some distributional facts about fricatives and a perceptual explanation. Phonetica, 51, 99-110.
Kingston J. & Diehl R.L. (1994, September) Phonetic knowledge. Language, 70, 419-454.
Diehl R. & Hoemeke K. (1994, September) Perception of vowel height: The role of F1-F0 distance. Journal of the Acoustical Society of America, 96, 661-674.
Cohen L., Diehl R.L., Oakes L. & Loehlin J. (1992, September) Infant perception of /aba/ versus /apa/: Building a quantitative model of infant categorical discrimination. Developmental Psychology, 28, 261-272.
Hura S. & Lindblom B. & Diehl, R.L. (1992, September) On the role of perception in shaping phonological assimilation rules. Language and Speech, 35, 59-72.
Hura S. & Lindblom B. & Diehl R.L. (1992) Some evidence that perceptual factors shape assimilations. Chalmers Technical Report 10, Göteborg, Sweden: Chalmers University of Technology, Department of Information Theory.
Cohen L.B., Diehl R.L., Oakes L.M., & Loehlin J.C. (1992). Infant perception of /aba/ versus /apa/: Building a quantitative model of infant categorical discrimination. Developmental Psychology, 28, 261-272.
Diehl R., Kluender K., Walsh M. & Parker E. (1991) Auditory enhancement in speech perception and phonology. In R. Hoffman & D. Palermo (Eds.), Cognition and the symbolic processes, Vol 3: Applied and ecological perspectives (pp.59-76). Hillsdale, NJ: Erlbaum.
Diehl R.L., Walsh M. & Kluender K. (1991, September) On the interpretability of speech/nonspeech comparisons: A reply to Fowler. Journal of the Acoustical Society of America 89, 2905-2909.
Walsh M. & Diehl R.L. (1991, September) Formant transition duration and amplitude rise time as cues to the stop/glide distinction. Quarterly Journal of Experimental Psychology, 43A, 603-620.
Diehl, R. (1991) Listener-oriented constraints on articulatory organization. Proceedings of the XIIth International Congress of Phonetic Sciences Aix-en-Provence, France, August 19-24, 1991. Vol. 1, 92-96. (Invited semi-plenary paper).
Diehl, R. (1991, September) The role of phonetics in the study of language. Phonetica, 48, 120-134.
Diehl, R.L., & Kingston, J. (1991). Phonetic covariation as auditory enhancement: The case of the [+ voice]/[- voice] distinction. PERILUS: Papers from the Conference on Current Phonetic Research Paradigms: Implications for Speech Motor Control, Stockholm University, August 13-16, 1991.
Blicher D., Diehl R.L. & Cohen L. (1990, September) Effects of syllable duration on the perception of the Mandarin Tone 2/Tone 3 distinction: Evidence of auditory enhancement. Journal of Phonetics, 18, 1-13.
Diehl R., Kluender K. & Walsh M. (1990) Some auditory bases of speech perception and production. In W. Ainsworth (Ed.), Advances in speech, hearing and language processing (pp.243-268). London: JAI Press.
Diehl R.L. & Kluende, K. (1989, September) On the objects of speech perception. Ecological Psychology, 1, 121-144.
Diehl, R. & Kluender, K. (1989, September) Reply to commentators. Ecological Psychology 1, 195-225.
Diehl, R. (1989, September) Remarks on Stevens' quantal theory of speech. Journal of Phonetics 17, 71-78.
Diehl R.L. & Walsh M. (1989, September) An auditory basis for the stimulus-length effect in the perception of stops and glides. Journal of the Acoustical Society of America, 85, 2154-2164.
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