Janwillem van den Berg
Encyclopedia
Janwillem van den Berg was a Dutch speech scientist and medical physicist who played a major role in establishing the myoelastic-aerodynamic theory
of voice production. The most notable aspect of van den Berg's theory is its impact on modern speech science in providing a foundation for modern models of vocal fold function.
Van den Berg designed the first implantable pacemaker
that could be switched to a higher beat rate for a higher level of activity. The first experiments for an R-top triggered pacemaker were done, and the design of electrodes to the heart was tested in animal experiments. This made Van den Berg known to the cardiologists of that time.
Phonation
Phonation has slightly different meanings depending on the subfield of phonetics. Among some phoneticians, phonation is the process by which the vocal folds produce certain sounds through quasi-periodic vibration. This is the definition used among those who study laryngeal anatomy and physiology...
of voice production. The most notable aspect of van den Berg's theory is its impact on modern speech science in providing a foundation for modern models of vocal fold function.
Van den Berg designed the first implantable pacemaker
Artificial pacemaker
A pacemaker is a medical device that uses electrical impulses, delivered by electrodes contacting the heart muscles, to regulate the beating of the heart...
that could be switched to a higher beat rate for a higher level of activity. The first experiments for an R-top triggered pacemaker were done, and the design of electrodes to the heart was tested in animal experiments. This made Van den Berg known to the cardiologists of that time.
Literature
- van den Berg, J. (1958). “Myoelastic-aerodynamic theory of voice production”, Journal of Speech and Hearing Research 3(1): 227-244.
- Titze, I. R. (2006).The Myoelatic Aerodynamic Theory of Phonation, Iowa City:National Center for Voice and Speech, 2006.