Greg Bryant

Associate Professor and Vice Chair

Contact Information

Office  2331 Rolfe Hall
Phone  310-825-5984
I am a cognitive scientist interested broadly in the evolution of communication and social behavior.

My empirical interest in the voice began during my graduate training as an experimental psycholinguist with studies of how people use prosodic (i.e., pitch, loudness, and rhythm) signals to communicate indirect meanings such as verbal irony. I then completed a post doctoral fellowship in the UCLA Center for Culture, Brain, and Development and specialized in cross-cultural voice perception. My research incorporates concepts and methods from cognitive psychology, speech science, biological anthropology, applied linguistics, and evolutionary biology. In my lab we do acoustic analyses of speech, perception and psychophysiology experiments, and design cross-cultural field studies. 

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Ph.D., Cognitive Psychology, University of California, Santa Cruz

M.S., Cognitive Psychology, University of California, Santa Cruz

B.A., Psychology, San Francisco State University


Broesch, T., & Bryant, G. A. (2017). Fathers’ infant-directed speech in a small scale society. Child Development.

Pietraszewski, D., Wertz, A., Bryant, G. A., & Wynn, K. (2017). Three-month-old human infants use vocal cues of body size. Proceedings of the Royal Society B: Biological Sciences.

Bryant, G. A., Fessler, D. M. T., Fusaroli, R., et al. (2016). Detecting affiliation in co-laughter across 24 societies. Proceedings of the National Academy of Sciences, 113(17), 4682-4687.

Broesch, T., & Bryant, G. A. (2015). Prosody in infant-directed speech is similar across western and traditional cultures. Journal of Cognition and Development, 16(1), 31-43.

Bryant, G. A., & Aktipis, C. A. (2014). The animal nature of spontaneous human laughter. Evolution and Human Behavior, 35(4), 327-335.

Manson, J. E., Bryant, G. A., Gervais, M., & Kline, M. (2013). Convergence of speech rate in  conversation predicts cooperation. Evolution and Human Behavior, 34(6), 419-426.

Bryant, G. A. (2013). Animal signals and emotion in music: Coordinating affect across groups. Frontiers in Psychology, 4, 990, 1-13.

Blumstein, D., Bryant, G. A., & Kaye, P. (2012). The sound of arousal in music is context dependent. Biology Letters, 8, 744-747.

Bryant, G. A., & Haselton, M. G. (2009). Vocal cues of ovulation in human females. Biology Letters, 5(1), 12-15.

Gibbs, R. W., & Bryant, G. A. (2008). Striving for optimal relevance when answering questions. Cognition, 106(1), 345-369.

Bryant, G. A., & Barrett, H. C. (2007). Recognizing intentions in infant directed speech: Evidence for universals. Psychological Science, 18(8), 746-751.

Fields of Study

Vocal communication, cross-cultural vocal production and perception, voice acoustics, pragmatics, music cognition, evolutionary psychology.