ISSN 0439-755X
CN 11-1911/B

›› 2006, Vol. 38 ›› Issue (02): 240-246.

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Development of Child Cardiac Vagal Tone

Luo-Zheng,Guo-Dejun   

  1. Department of Psychology, Capital Normal University, Beijing 100089, China
  • Received:2005-03-28 Revised:1900-01-01 Published:2006-03-30 Online:2006-03-30
  • Contact: Luo Zheng

Abstract: In this study, Cardiac vagal tone and heart period were measured in a sample of 104 children (aged 2, 4, and 6) to evaluate the development of vagal regulation at rest and during age-appropriate mild stress task. The development patterns of child baseline vagal tone and child vagal suppression were different: (1) Child baseline vagal tone increased with age in early childhood. The baseline vagal tone of 4 years and 6 years were significantly higher than that of 2 years, but there was no significant difference between that of 4 years and 6 years. Child baseline heart period increased with age. (2) Child vagal suppression didn’t increase with age. Child baseline-to-task change in heart period of 6 years was significantly higher than that of 2 years, and there were no differences between those of other groups

Key words: cardiac vagal tone, baseline vagal tone, vagal suppression

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