+ Site Statistics
+ Search Articles
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ PDF Full Text
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Translate
+ Recently Requested

Physiological correlates of memory recall in infancy: vagal tone, cortisol, and imitation in preterm and full-term infants at 6 months

Physiological correlates of memory recall in infancy: vagal tone, cortisol, and imitation in preterm and full-term infants at 6 months

Infant Behavior and Development 33(2): 219-234

We examined the role of physiological regulation (heart rate, vagal tone, and salivary cortisol) in short-term memory in preterm and full-term 6-month-old infants. Using a deferred imitation task to evaluate social learning and memory recall, an experimenter modeled three novel behaviors (removing, shaking, and replacing a glove) on a puppet. Infants were tested immediately after being shown the behaviors as well as following a 10-min delay. We found that greater suppression of vagal tone was related to better memory recall in full-term infants tested immediately after the demonstration as well as in preterm infants tested later after a 10-min delay. We also found that preterm infants showed greater coordination of physiology (i.e., tighter coupling of vagal tone, heart rate, and cortisol) at rest and during retrieval than full-term infants. These findings provide new evidence of the important links between changes in autonomic activity and memory recall in infancy. They also raise the intriguing possibility that social learning, imitation behavior, and the formation of new memories are modulated by autonomic activity that is coordinated differently in preterm and full-term infants.

(PDF emailed within 0-6 h: $19.90)

Accession: 055001608

Download citation: RISBibTeXText

PMID: 20189251

DOI: 10.1016/j.infbeh.2009.10.007

Related references

Maternal Postpartum Behavior and the Emergence of InfantMother and InfantFather Synchrony in Preterm and Full-Term Infants: The Role of Neonatal Vagal Tone. Yearbook of Neonatal and Perinatal Medicine 2008: 197-198, 2008

Cortisol, contingency learning, and memory in preterm and full-term infants. Psychoneuroendocrinology 31(1): 108-117, 2005

Maternal postpartum behavior and the emergence of infant-mother and infant-father synchrony in preterm and full-term infants: the role of neonatal vagal tone. Developmental Psychobiology 49(3): 290-302, 2007

Measuring declarative memory from infancy to childhood: The Frankfurt imitation tests for infants and children aged 1236 months. European Journal of Developmental Psychology 12(3): 359-376, 2015

Vagal tone as a biomarker of long-term memory for a stressful social event at 4 months. Developmental Psychobiology 56(7): 1564-1574, 2015

Multidimensional response to vaccination pain in very preterm, moderate- to-late preterm and full-term infants at age three months. Early Human Development 91(3): 199-204, 2015

A comparison of preterm and full-term infants on auditory discrimination at four months and on Bayley Scales of Infant Development at eighteen months. Child Development 51(1): 81-88, 1980

Mother-infant interactions at 2 and 3 months in preterm, small-for-gestational-age, and full-term infants; their relationship with cognitive development at 4 months. Early Human Development 11(3-4): 231-246, 1985

Activity-based assessment of the sleep behaviors of VLBW preterm infants and full-term infants at around 12 months of age. Brain and Development 32(2): 150-155, 2010

Feeding and drinking skills in preterm and low birth weight infants compared to full term infants at a corrected age of nine months. Early Human Development 89(6): 445-447, 2013

The landau reaction in full term and preterm infants at 4 months of age. Developmental Medicine & Child Neurology 27(2): 161-169, 1985

Regulatory Problems in Very Preterm and Full-Term Infants Over the First 18 Months. Journal of Developmental and Behavioral Pediatrics 37(4): 298-305, 2017

Serum cortisol levels: the first 10 days in full-term and preterm infants. Israel Journal of Medical Sciences 21(2): 170-172, 1985

Dynamics of oralrespiratory coordination in full-term and preterm infants: II. Continuing effects at 3 months post term. Developmental Science 2(3): 374-384, 1999

EEG rhythm in preterm and full-term infants at the age of five months in endogenous attention. Human Physiology 32(5): 517-527, 2006