Entropy in Heart Rate Dynamics Reflects How HRV-Biofeedback Training Improves Neurovisceral Complexity during Stress-Cognition Interactions

被引:21
作者
Deschodt-Arsac, Veronique [1 ]
Blons, Estelle [1 ]
Gilfriche, Pierre [1 ,2 ]
Spiluttini, Beatrice [3 ]
Arsac, Laurent M. [1 ]
机构
[1] Univ Bordeaux, CNRS, UMR 5218, Lab IMS, F-33400 Talence, France
[2] CATIE Ctr Aquitain Technol Informat & Elect, F-33400 Talence, France
[3] URGOTECH, 15 Ave Iena, F-75116 Paris, France
关键词
refined composite multiscale entropy; complexity; central autonomic network; heart rate variability; interconnectivity; RATE-VARIABILITY; TRANSDIAGNOSTIC BIOMARKER; ASSOCIATION; PERFORMANCE; INTEGRATION; RESPONSES; MODEL;
D O I
10.3390/e22030317
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Despite considerable appeal, the growing appreciation of biosignals complexity reflects that system complexity needs additional support. A dynamically coordinated network of neurovisceral integration has been described that links prefrontal-subcortical inhibitory circuits to vagally-mediated heart rate variability. Chronic stress is known to alter network interactions by impairing amygdala functional connectivity. HRV-biofeedback training can counteract stress defects. We hypothesized the great value of an entropy-based approach of beat-to-beat biosignals to illustrate how HRVB training restores neurovisceral complexity, which should be reflected in signal complexity. In thirteen moderately-stressed participants, we obtained vagal tone markers and psychological indexes (state anxiety, cognitive workload, and Perceived Stress Scale) before and after five-weeks of daily HRVB training, at rest and during stressful cognitive tasking. Refined Composite Multiscale Entropy (RCMSE) was computed over short time scales as a marker of signal complexity. Heightened vagal tone at rest and during stressful tasking illustrates training benefits in the brain-to-heart circuitry. The entropy index reached the highest significance levels in both variance and ROC curves analyses. Restored vagal activity at rest correlated with gain in entropy. We conclude that HRVB training is efficient in restoring healthy neurovisceral complexity and stress defense, which is reflected in HRV signal complexity. The very mechanisms that are involved in system complexity remain to be elucidated, despite abundant literature existing on the role played by amygdala in brain interconnections.
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页数:13
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