Abstract
AbstractHigh anxiety and poor emotion regulation have been found to function as independent causes of stress to the autonomic nervous system. The aim of this study was to further explore how these factors may interact to control heart rate variability. Fifty college students took part in a three-part cardiac recording session followed by questionnaires on trait worry and emotion regulation. An interaction for trait worry and emotion reappraisal was found on two markers of heart rate variability. Low trait worriers with high emotion reappraisal had higher vagal tone than the other three groups. This finding was across all three phases with no specific reactivity or recovery difference. Emotion suppression was not found to significantly impact vagal tone. The negative impacts of trait worry and emotion regulation on heart rate variability were found in this sample of healthy college-aged individuals. Specifically, high trait worry could have a deleterious effect on parasympathetic control of the heart. Emot...
Highlights
Clinical manifestations of anxiety have been theoretically related to an autonomic nervous system imbalance (Mitchell & Shapiro, 1991)
The findings indicate that the group that was lower anxiety and used more emotion reappraisals had the highest amounts of heart rate variability which would be cardioprotective
This study found that low trait worriers who are high in emotion reappraisal had the most root mean square of successive differences (rMSSD) and high-frequency power across all three phases of the study
Summary
Clinical manifestations of anxiety have been theoretically related to an autonomic nervous system imbalance (Mitchell & Shapiro, 1991). A more complex explanation of the activity of this system has been proposed, which better characterizes its modes of control (Berntson, Cacioppo, & Quigley, 1991) Overall, this model of autonomic nervous system control describes nine modes of activity allowing for the variability seen in the heart rate control system including concordant and discordant activation and inhibition of the two branches. This model of autonomic nervous system control describes nine modes of activity allowing for the variability seen in the heart rate control system including concordant and discordant activation and inhibition of the two branches This pattern is one aspect of the cardiovascular system that exhibits such complex patterns or autonomic flexibility. Saul (1990) noted that the parasympathetic component of heart rate has better control over the cardiac system due to a faster transmission rate
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