Neural Control, Timing and Sequencing of Speech Movements

(*=joint 1st author; +=current or former student)

*Masapollo, M., *Nittrouer, S. +Goel, J., & Oh, Y. (under review). Electromagnetic articulography is feasible for assessment of speech motor skills in cochlear implant users.


Masapollo, M., +Zezas, E., Smith, D.J., & Guenther, F.H. (under review). Disentangling effects of working memory storage and motor execution on speech sequencing.

Frankford, S.A., Heller Murray, E.S., Masapollo, M., Shanqing, C., Tourville, J., Nieto-Castañón, A., & Guenther, F.H. (2021). The neural circuitry underlying the “rhythm effect” in stuttering. Journal of Speech, Language, and Hearing Research, 1-22 Supplementary material

Masapollo, M., Segawa, J.A., Beal, D., Tourville, J., Nieto-Castañón, A., Heyne, M., Frankford, S.,  & Guenther, F.H. (2020). Behavioral and neural correlates of speech motor sequence learning in neurotypical and stuttering speakers: an fMRI investigation. Neurobiology of Language, 2 (1): 106–137.

*Segawa, J.A., *Masapollo, M., Tong, M., Smith, D.J. & Guenther, F.H. (2019). Chunking of phonological units in speech sequencing. Brain & Language, doi: 10.1016/j.bandl.2019.05.001  Supplementary material



Interactions between Speech Production and Perception and the Roles of Sensory Feedback

Polka, L., Masapollo, M., & Ménard, L. (under review). Setting the stage for speech production: Infants prefer listening to speech sounds with infant vocal resonances.

Masapollo, M., & Guenther, F.H. (2019). Engaging the articulators enhances perception of concordant visible speech movements. Journal of Speech, Language and Hearing Sciences, doi: 10.1044/2019_JSLHR-S-19-0167.  Supplementary material

Masapollo, M., Polka, L., & Ménard, L. (2016). When infants talk, infants listen: Pre-babbling infants prefer infant speech. Developmental Science, doi: 10.1111/desc.12298.  Watch sample infant in our auditory preference task here.  Press release from CBC Radio-Canada and McGill University.



Polka, L., Masapollo, M., & Ménard, L. (2014). Who’s talking now? Infants’ perception of vowels with infant vocal properties. Psychological Science, 25(7),1448-1456.  Press release from Smithsonian Magazine.


Universal Biases and Experiential Influences on Speech Perception

Polka, L., Molnar, M., Zhao, C.T., & Masapollo, M. (2021). Neurophysiological correlates of asymmetries in vowel perception: an English-French cross-linguistic ERP study. Special issue in Frontiers in Human Neuroscience, entitled, “Phonological Representations and Mismatch Negativity Asymmetries.” DOI=10.3389/fnhum.2021.607148


Liu, Y.Y., Polka, L., Masapollo, M., & Ménard, L. (2021). Disentangling the roles of formant proximity and stimulus prototypicality in adult vowel perception. Journal of the Acoustical Society of America, Express Letters.

Zhao, T.C., Masapollo, M., Polka, L., Ménard, L., & Kuhl, P.K. (2019). Effects of formant proximity and stimulus prototypicality on the neural discrimination of vowels: Evidence from the auditory frequency-following response. Brain & Language, 194, 77-83. Supplementary material

Masapollo, M., Zhao, T.C., Franklin, L., & Morgan, J.L. (2019). Asymmetric discrimination of non-speech tonal analogues of vowels. Journal of Experimental Psychology: Human Perception and Performance, 45(2), 285-300.

Polka, L., Ruan, Y., & Masapollo, M. (2019). Understanding vowel perception biases: a meta-analytic approach. A Sound Approach to Language Matters – In Honor of Ocke-Schwen Bohn, Nyvad, A.M., Hejna, M., Hojen, A., Jesperson, A.B., & Hjortshoj, M. (Eds.), p. 561-582.

Masapollo, M., Polka, L., Ménard, L., Franklin, L., Tiede, M., & Morgan, J.L. (2018). Asymmetries in unimodal visual vowel perception: The roles of oral-facial kinematics, orientation and configuration. Journal of Experimental Psychology: Human Perception and Performance, 44(7), 1103-1118. Press release from the Brown University Newsroom.PLdisplay

Masapollo, M., Polka, L., & Ménard, L. (2017). A universal bias in adult vowel perception – By ear or by eye. Cognition, 166, 358-370.

Masapollo, M., Polka, L., Molnar, M., & Ménard, L. (2017). Directional asymmetries reveal a universal bias in adult vowel perception. Journal of the Acoustical Society of America, 141(4), 2857-2869.

Language Acquisition

Masapollo, M., & Nittrouer, S. (in preparation). MIPA: A theory of phonological acquisition and speech motor control.

Demuth, K., Patrolia, M., Song, J.Y., & Masapollo, M. (2012). The development of articles in children’s early Spanish: Prosodic interactions between lexical and grammatical form. Linguistic interfaces and language acquisition in childhood, J. Rotham & Pedro Guijarro-Fuentes (Eds.), First Language, 32, (1-2), 17-37.