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07-01-2021 | Original Article | Uitgave 4/2021

Cognitive Therapy and Research 4/2021

Inhibitory Control Moderates the Effect of Anxiety on Vagally Mediated Heart Rate Variability: Findings from a Community Sample of Young School-Aged Children

Tijdschrift:
Cognitive Therapy and Research > Uitgave 4/2021
Auteurs:
Tonje Grønning Andersen, Charlotte Fiskum, Karl Henry Jacobsen, Stian Lydersen, Lars Wichstrøm
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Supplementary Information

The online version of this article (https://​doi.​org/​10.​1007/​s10608-020-10184-3) contains supplementary material, which is available to authorized users.

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Abstract

Background

Individuals with anxiety disorders show both excessive and blunted vagally mediated heart rate variability (vmHRV) reactivity to stress. Scholars have suggested that differences in cognitive control could explain such heterogeneity, but this proposition has not been tested. The present study hence investigated the moderating effect of executive functions, particularly inhibitory control, on the relationship between anxiety symptoms and vmHRV reactivity.

Methods

We evaluated anxiety symptoms (a diagnostic interview with parents) and executive functions (parent-reported questionnaire) in 262 six-year-olds from a community sample. vmHRV responses to neutral tasks and stressors were analyzed using latent growth curve modeling.

Results

Results supported a moderating effect of inhibitory control; children with more anxiety symptoms and enhanced inhibitory control showed a blunted decrease in vmHRV in response to stressors. In contrast, counterparts with impaired inhibitory control evinced an excessive decrease in vmHRV. Children with no anxiety symptoms did not differ in vmHRV reactivity, independent of the level of inhibitory control.

Conclusions

The results could indicate that anxious children with enhanced inhibitory control successfully utilized a cognitive avoidance strategy (i.e. verbal worry) to inhibit expected autonomic arousal in response to threat. Clinical implications are discussed.

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