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Vagal regulation during bottle feeding in
low-birthweight neonates: support for the gustatory-vagal hypothesis.
Portales AL; Porges SW; Doussard-Roosevelt JA;
Abedin M; Lopez R; Young MA; Beeram MR; Baker M
Institute for Child Study, University of Maryland
College Park 20742, USA.
Dev Psychobiol 1997 Apr;30(3):225-33
NLM CIT. ID:
The gustatory-vagal hypothesis proposes that
gustatory stimulation elicits a coordinated vagal response manifested as an increase in
ingestive behaviors (e.g., sucking) and a decrease in nucleus ambiguus vagal tone measured
by decreases in the amplitude of respiratory sinus arrhythmia (RSA). The current study
tested the gustatory-vagal hypothesis in a bottle feeding paradigm with 29 clinically
stable, high-risk, low-birthweight neonates. The amplitude of respiratory sinus arrhythmia
(RSA) was collected before, during, and after bottle feeding. Consistent with the
gustatory-vagal hypothesis, RSA decreased during bottle feeding. In a longitudinal
subsample of subjects, the pattern of RSA changes during the feeding paradigm was stable
across two test sessions.
Support, Non-U.S. Gov't
Support, U.S. Gov't, P.H.S.
When my office
lease expired at the end of 2004, I decided to turn it into a
"sabbatical" from my private practice. Many years ago, in my
grandfather's 89th year of life, he told me, "John, it is important
to smell the roses while you can still smell them." His life
gave living a very good reputation. It is also true that the
pursuit of that philosophy required my grandfather to to re-open his
assay office/ore market in Wickenburg, Arizona as a 75-year-old because
he had run a little short of retirement money. Thus, if blessed with his
luck and health, I'll be back.. --jjh