• Journal Article

Vagal regulation during bottle feeding in low-birthweight neonates: Support for the gustatory-vagal hypothesis

Citation

Portales, A. L., Porges, S., DoussardRoosevelt, J. A., Abedin, M., Lopez, R., Young, M. A., ... Baker, M. (1997). Vagal regulation during bottle feeding in low-birthweight neonates: Support for the gustatory-vagal hypothesis. Developmental Psychobiology, 30(3), 225-233. DOI: 10.1002/(SICI)1098-2302(199704)30:3<225::AID-DEV5>3.0.CO;2-R

Abstract

The glustatory-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-birth-weight 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 Seeding. In a longitudinal subsample of subjects, the pattern of RSA changes during the feeding paradigm was stable across two test sessions. (C) 1997 John Wiley & Sons, Inc