scholarly journals Blunted Autonomic Reactivity to Mental Stress in Depression Quantified by Nonlinear Cardiorespiratory Coupling Indices

2020 ◽  
Author(s):  
Spyridon Kontaxis ◽  
Pablo Laguna ◽  
Esther García Pages ◽  
Mar Posadas-de Miguel ◽  
Sara Siddi ◽  
...  
Keyword(s):  
Mental Stress ◽  
Autonomic Reactivity ◽  
Cardiorespiratory Coupling

scholarly journals Cardiorespiratory Dynamic Response to Mental Stress: A Multivariate Time-Frequency Analysis

2013 ◽  
Vol 2013 ◽  
pp. 1-12 ◽  
Author(s):  
Devy Widjaja ◽  
Michele Orini ◽  
Elke Vlemincx ◽  
Sabine Van Huffel
Keyword(s):  
Dynamic Response ◽  
Mental Stress ◽  
Mental Arithmetic ◽  
Autonomic Response ◽  
Vagal Activity ◽  
Simulation Studies ◽  
Time Frequency ◽  
Rr Interval ◽  
Time Varying Parameters ◽  
Cardiorespiratory Coupling

Mental stress is a growing problem in our society. In order to deal with this, it is important to understand the underlying stress mechanisms. In this study, we aim to determine how the cardiorespiratory interactions are affected by mental arithmetic stress and attention. We conduct cross time-frequency (TF) analyses to assess the cardiorespiratory coupling. In addition, we introduce partial TF spectra to separate variations in the RR interval series that are linearly related to respiration from RR interval variations (RRV) that are not related to respiration. The performance of partial spectra is evaluated in two simulation studies. Time-varying parameters, such as instantaneous powers and frequencies, are derived from the computed spectra. Statistical analysis is carried out continuously in time to evaluate the dynamic response to mental stress and attention. The results show an increased heart and respiratory rate during stress and attention, compared to a resting condition. Also a fast reduction in vagal activity is noted. The partial TF analysis reveals a faster reduction of RRV power related to (3 s) than unrelated to (30 s) respiration, demonstrating that the autonomic response to mental stress is driven by mechanisms characterized by different temporal scales.

Functional Cardiopathy Syndrome In Modern Adolescents

2021 ◽  
Vol 03 (01) ◽  
pp. 6-11
Author(s):  
Janna Nazarova ◽  
Keyword(s):  
Mental Stress ◽  
Clinical Laboratory ◽  
Clinical Symptoms ◽  
Risk Groups ◽  
Female Adolescents ◽  
Autonomic Reactivity ◽  
Autonomic Tone ◽  
Cardiovascular Pathology ◽  
Male Adolescents ◽  
Autonomic Disorders

96 adolescents with functional cardiopathy were inspected. All children underwent clinical, laboratory, and instrumental examination. In all patients, the initial autonomic tone was assessed using a questionnaire, and autonomic reactivity was assessed using cardiac rhythmography. It was found that dysfunction of the autonomic nervous system is involved in the pathogenesis of functional cardiopathy, which determines the clinical symptoms in these patients, and autonomic disorders in the group of female adolescents are more significant than in male adolescents. Cardiorhythmography quite accurately reveals the imbalance of the body's adaptive resources for physical and mental stress, in this regard, it can be used to determine risk groups for the formation of cardiovascular pathology.

Emotional suppression and stress hormone reactivity to mental stress

2010 ◽  
Author(s):  
Changiz Mohiyeddini ◽  
Aminah Jaber ◽  
Jolanta Opacka-Juffry
Keyword(s):  
Mental Stress ◽  
Stress Hormone ◽  
Emotional Suppression

AUTONOMIC REACTIVITY AND PERSONALITY

1990 ◽  
Vol 67 (7) ◽  
pp. 1304 ◽  
Author(s):  
DAVID LESTER
Keyword(s):  
Autonomic Reactivity
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