john herr psychologist los gatos saratoga california

On Sabbatical

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TITLE: Vagal regulation during bottle feeding in low-birthweight neonates: support for the gustatory-vagal hypothesis.
AUTHOR: Portales AL; Porges SW; Doussard-Roosevelt JA; Abedin M; Lopez R; Young MA; Beeram MR; Baker M
AUTHOR AFFILIATION: Institute for Child Study, University of Maryland College Park 20742, USA.
SOURCE: Dev Psychobiol 1997 Apr;30(3):225-33
NLM CIT. ID: 97258079
ABSTRACT: 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.
MAIN MESH SUBJECTS: *Feeding Behavior
*Infant, Low Birth Weight
Heart Rate
Infant, Newborn
Support, Non-U.S. Gov't
Support, U.S. Gov't, P.H.S.

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On Sabbatical!

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

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