Neural Control, Timing and Sequencing of Speech Movements

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

Masapollo, M. (in preparation). Speech motor sequence learning: timing, specificity, and neural substrates.


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

*Masapollo, M., *Nittrouer, S. +Goel, J., & Oh, Y. (2021). Electromagnetic articulography appears feasible for assessment of speech motor skills in cochlear implant users. Journal of the Acoustical Society of America, Express Letters,

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

speech-networkMasapollo, 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. (accepted). Setting the stage for speech production: Infants prefer listening to speech sounds
with infant vocal resonances. Journal of Speech, Language, and Hearing Sciences.

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.

Ocke BohnPolka, 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.PLdisplay

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.

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., Zhao, T.C., Polka, L., & Best, C.T. (in preparation). Multimodal production of infant-directed speech: a critical review.

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.