Date of Award
5-2023
Degree Type
Masters Thesis
Degree Name
Master of Science (MS)
School
Speech and Hearing Sciences
Committee Chair
Dr. Steven J. Cloud
Committee Chair School
Speech and Hearing Sciences
Committee Member 2
Dr. Laura Amanda Mathews
Committee Member 2 School
Speech and Hearing Sciences
Committee Member 3
Dr. Kelly N. Koch
Committee Member 3 School
Speech and Hearing Sciences
Committee Member 4
Mary T. Schaub
Committee Member 4 School
Speech and Hearing Sciences
Abstract
The author of this thesis conceived and investigated an unexpected electrical signal that may not be noticed during regular electroglottography (EGG) when electrodes are conventionally placed on the anterior surface of the throat. It appears that there is a measurable electrical signal from the EGG equipment when electrodes are placed over the frontal cheek (belly of zygomatic muscle), and the tongue is elevated to contact the hard palate, or the tongue is lowered to break the contact. Therefore, this phenomenon is designated as unconventional electroglottography (UEGG, Dr. Steven Cloud, private communication, July 17, 2022).
Two distinctive patterns of waveforms were obtained in this study that showed two visually different transitions: (1) when the tongue tip was raised from the oral floor to touch the hard palate, and (2) when the tongue tip detached from the hard palate to return to the oral floor. These transitional patterns were observed during silent maneuvers as well as during spoken utterances that involved touching and detaching between the hard palate and the tongue. The UEGG signal transitions and corresponding spectrographic transitions of spoken utterances appeared to be closely synchronized. Therefore, various applications of this basic concept, including therapeutic bio-feedback, may be possible for evaluating normal as well as abnormal lingual contacts with the hard palate during speech production through future investigations. Such applications of UEGG may be preferable to conventional electropalatography (EPG) that requires intraoral electrodes.
ORCID ID
0000-0002-9388-1972
Copyright
Amitava Biswas
Recommended Citation
Biswas, Amitava, "A PROOF OF CONCEPT FOR DETECTION OF PALATO-LINGUAL CONTACT WITHOUT INTRAORAL ELECTRODES IN A HUMAN PARTICIPANT" (2023). Master's Theses. 980.
https://aquila.usm.edu/masters_theses/980
Included in
Acoustics, Dynamics, and Controls Commons, Bioelectrical and Neuroengineering Commons, Biomechanical Engineering Commons, Biomechanics and Biotransport Commons, Biomedical Devices and Instrumentation Commons, Investigative Techniques Commons, Other Analytical, Diagnostic and Therapeutic Techniques and Equipment Commons, Physiotherapy Commons, Speech and Hearing Science Commons, Speech Pathology and Audiology Commons, Systems and Integrative Physiology Commons