An experimental device for multi-directional somatosensory perturbation and its evaluation in a pilot psychophysical experiment

Rintaro Ogane (1) , Lynda Selila (1) , Takayuki Ito (1, 2)

1 GIPSA-PCMD - GIPSA - Perception, Contrôle, Multimodalité et Dynamiques de la parole
2 Haskins Laboratories

Somatosensory stimulation associated with facial skin deformation has been developed and efficiently applied in the study of speech production and speech perception. However, the technique is limited to a simplified unidirectional pattern of stimulation, and cannot adapt to realistic stimulation patterns related to multidimensional orofacial gestures. To overcome this issue, a new multi-actuator system is developed enabling one to synchronously deform the facial skin in multiple directions. The first prototype involves stimulation in two directions and its efficiency is evaluated using a temporal order judgement test involving vertical and horizontal facial skin stretches at the sides of the mouth.

Domaines: Sciences cognitives

Rintaro Ogane, Lynda Selila, Takayuki Ito. An experimental device for multi-directional somatosensory perturbation and its evaluation in a pilot psychophysical experiment. Journal of the Acoustical Society of America, 2020, 148 (3), pp.EL279-EL284. ⟨10.1121/10.0001942⟩. ⟨hal-02946008⟩