Infant temperament and cardiac vagal tone: assessments at twelve weeks of age.

  title={Infant temperament and cardiac vagal tone: assessments at twelve weeks of age.},
  author={Lynne C. Huffman and Yvonne E Bryan and R S del Carmen and Frank A Pedersen and Jane A Doussard-Roosevelt and Stephen Porges},
  journal={Child development},
  volume={69 3},
Sixty 12-week-old infants participated in a laboratory study to explore the relations between temperament and cardiac vagal tone. Temperament was evaluated via laboratory observations and maternal ratings. Cardiac vagal tone, measured as the amplitude of respiratory sinus arrhythmia, was quantified from beat-to-beat heart period data collected during a resting baseline period and during the laboratory assessment of temperament. Specific hypotheses were investigated relating temperament to both… CONTINUE READING
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