Salivary alpha-amylase and cortisol in toddlers: Differential relations to affective behavior

Christine K. Fortunato, Amy E. Dribin, Douglas A. Granger, Kristin A. Buss

Research output: Contribution to journalArticle

72 Scopus citations

Abstract

This study applies a minimally invasive and multi-system measurement approach (using salivary analytes) to examine associations between the psychobiology of the stress response and affective behavior in toddlers. Eighty-seven 2-year-olds (48 females) participated in laboratory tasks designed to elicit emotions and behavior ranging from pleasure/approach to fear/withdrawal. Saliva samples were collected pretask and immediately posttask, and assayed for markers of sympathetic nervous system (alpha-amylase or sAA) and hypothalamic-pituitary-adrenal axis (cortisol) activity. Individual differences in sAA were positively associated with approach behavior and positive affect; whereas, cortisol was positively associated with negative affect and withdrawal behavior. The findings suggest that individual differences in sAA may covary specifically with positive affect and approach behaviors or the predominant emotional state across a series of tasks. The results are discussed with respect to advancing biosocial models of the concomitants and correlates of young children's affective behaviors.

Original languageEnglish (US)
Pages (from-to)807-818
Number of pages12
JournalDevelopmental psychobiology
Volume50
Issue number8
DOIs
StatePublished - 2008

Keywords

  • Emotion
  • HPA axis
  • Salivary alpha amylase

ASJC Scopus subject areas

  • Developmental and Educational Psychology
  • Developmental Neuroscience
  • Developmental Biology
  • Behavioral Neuroscience

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