What is it about?
Receiving sensory information about speech sounds while producing speaking movements is a key for the acquisition of speech production. This work examined whether training by receiving sensory stimulation without making any speech movement modifies speech production. Within training, speech sounds were presented to participants in conjunction with the sensory stimulation associated with facial skin deformation. Since facial skin deforms in various ways during speaking, the stimulation associated with facial skin deformation can provide relevant information concerning speech movement. The experimental results showed that speech production was changed depending on the combination of speech sounds and the stimulation associated with facial skin deformation.
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Why is it important?
We learn speech production by making actual production of speech sounds. However, we lack appropriate knowledge on how to modify our speech movements to correct or modify the produced speech sounds. The current findings open novel possibility to correct or learn speech production by only receiving proper sensory information concerning speech movements in conjunction with corresponding speech sounds, without producing any actual speech movement.
Perspectives
This finding could be extended into practical environments for speech training, second language acquisition and rehabilitation, even when the learner does not know how to modify her/his movements to tune the uttered speech sounds.
Takayuki Ito
This work sets the stage for using articulatory movement information in clinical applications involving speech rehabilitation. I also find the usage of directional statistics to investigate production changes in this work interesting as it provides a unique approach to examine formant changes in a two-dimensional way.
Monica Ashokumar
Universite Grenoble Alpes
Read the Original
This page is a summary of: Changes in Speech Production Following Perceptual Training With Orofacial Somatosensory Inputs, Journal of Speech Language and Hearing Research, March 2024, American Speech-Language-Hearing Association (ASHA),
DOI: 10.1044/2023_jslhr-23-00249.
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