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Speech Kinematics and Coordination Measured With an MEG-Compatible Speech Tracking System
Ioanna Anastasopoulou1, Pascal van Lieshout2, Douglas O Cheyne2,3
1School of Psychological Sciences, Macquarie University, Sydney, NSW, Australia.
Frontiers in Neurology
|July 15, 2022
Summary
A new Magneto-articulography for the Assessment of Speech Kinematics (MASK) system enables simultaneous speech kinematics and brain activity measurement. This advances neurobiology research for speech production, development, and disorders.
Area of Science:
- Neuroscience
- Speech Science
- Biomedical Engineering
Background:
- Articulography and functional neuroimaging are key to speech production neurobiology.
- Technical incompatibilities previously limited combined use of these methods.
Purpose of the Study:
- Introduce and validate a novel articulography system, Magneto-articulography for the Assessment of Speech Kinematics (MASK).
- Enable simultaneous measurement of speech kinematics and neuroimaging data.
Main Methods:
- Developed and tested the MASK system for deriving oro-facial movement kinematic profiles during speech.
- Compared MASK kinematic data with conventional Electromagnetic Articulography (EMA) in healthy adults.
- Analyzed speech kinematics for specific utterances (/ipa/, /api/, /pataka/).
Main Results:
- The MASK system reliably characterizes key kinematic and movement coordination parameters of speech motor control.
- Demonstrated the ability to intrinsically register speech kinematics with magnetoencephalographic (MEG) brain activity.
Conclusions:
- The MASK system overcomes previous technical limitations, allowing integrated articulography and neuroimaging.
- This methodology facilitates innovative cross-disciplinary research into speech production neurobiology, development, and disorders.
