My research focuses on the control mechanism of a speech articulatory system and speech perception processing. the specific goal of my research program is to understand how the somatosensory information arising from cutaneous mechanoreceptors is utilized in the sensorimotor processing of speech system and in speech perception system. I have developed perturbation system of cutaneous sensation, and have measured articulatory motion while the perturbation system modulates cutaneous sensation.
Ito, T., Gracco, V.L., Ostry, D.J., (2014) Temporal factors affecting somatosensory-auditory interactions in speech processing. Frontiers in Psychology, Novemebr 2014, Vol.5, Article 1198
Ito, T., Johns, A., Ostry, D.J. (2013). Left lateralized enhancement of orofacial somatosensory processing due to speech sounds. Journal of Speech, Language, and Hearing Research, Vol. 56, p. 1875-1881.
Ito T, Tiede M, Ostry DJ (2009) Somatosensory function in speech perception. Proc Natl Acad Sci U S A 106:1245-1248.
Ito, T, Gomi, H. (2007) Cutaneous mechanoreceptors contribute to the generation of a cortical reflex in speech. Neuroreport 18(9): 907-910.
Ito, T, Kimura, T, and Gomi, H (2005) The motor cortex is involved in reflexive compensatory adjustment of speech articulation. Neuroreport 16(16): 1791-4.
Ito, T, Gomi, H and Honda, M (2004) Dynamical simulation of speech cooperative articulation by muscle linkages. Biol Cybern 91: 275-282.
Ito, T, Murano, EZ and Gomi, H (2004) Fast force generation dynamics of human articulatory muscles. J Appl Physiol 96: 2318-2324
Ito, T, Gomi, H and Honda, M (2003) Articulatory coordination by muscle-linkage during bilabial utterances. Acoust. Sci. & Tech. Acoustical letter 24(6): 391-393.
Ito, T, Gomi, H and Honda, M (2003) Articulatory coordination using mechanical linkage between upper lip and jaw examined by jaw perturbation. The IEICE trans. on Infor. & System, PT.2 J86-D-II(2): 333-341 (in Japanese).
Gomi, H, Ito, T, Murano, EZ and Honda, M (2002) Compensatory articulation during bilabial fricative production by regulating muscle stiffness. J. Phonetics 30(3): 261-279.
PI, A-169: Somatosensory Function in Speech Learning and Perception.
A-111: Somatosensory Basis of Speech Learning and Control.