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A schema is a mental construct consisting of a cluster or collection of related concepts (Bartlett, 1932). There are many different types of schemata, and they all have one thing in common: schemata are a method of organizing information that allows the brain to work more efficiently. When a schema is activated, the brain makes immediate assumptions about the person or object being observed.

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The Participant-Reported Implementation Update and Score PRIUS: A Novel Method for Capturing Implementation-Related Data Over Time

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Electroglottography - An Update.

Christian T Herbst¹

¹Bioacoustics Laboratory, Department of Cognitive Biology, Faculty of Life Sciences, University of Vienna, Wien, Austria.

Journal of Voice : Official Journal of the Voice Foundation

|March 16, 2019

Summary

This summary is machine-generated.

Electroglottography (EGG) measures vocal fold contact area. Recent analysis reveals that vocal fold contact changes over time, not instantaneously, requiring careful interpretation of EGG data and parameters like the contact quotient.

Keywords:

CQ EGG Electroglottography Laryngography contact quotient

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Area of Science:

Laryngeal Physiology
Bioacoustics
Speech Science

Background:

Electroglottography (EGG) is a noninvasive technique for assessing vocal fold contact area.
EGG experienced a surge in scientific interest from the late 1980s to the early 1990s.
This review updates prior landmark contributions and details advancements in EGG over the last 25 years.

Purpose of the Study:

To provide an updated review of Electroglottography (EGG) technology and its applications.
To critically examine the interpretation of EGG waveform landmarks and quantitative parameters.
To highlight recent developments and future directions for EGG research and application.

Main Methods:

Algorithmic bibliographic analysis of EGG literature.
Methodological discussion of measurement, analysis, and interpretation of EGG signals.
Review of EGG applications across diverse scientific and clinical fields.

Main Results:

Vocal fold contacting/decontacting is a time-interval process, not instantaneous, due to phase differences in vibration.
Instantaneous vocal fold closing/opening cannot be precisely determined from EGG signals.
Quantitative parameters like the EGG contact quotient require cautious interpretation due to their reliance on contact event timing.

Conclusions:

EGG is a mature technology with broad applications but has limitations hindering its full potential.
Future advancements require rigorous validation of existing and novel EGG approaches.
Improvements in EGG measurement technology are also crucial for future development.