hrv

Reduced heart rate variability is associated with disease severity in psychosis spectrum disorders

In this study we investigated heart rate variability (HRV), a proxy for vagal activity, as a biological marker for disease severity in patients with schizophrenia (SZ) and bipolar disorder (BD). Heart rate variability (HRV) was calculated in 35 patients with SZ and 52 patients with BD, as well as in 146 healthy controls Results suggest that disease severity is associated with autonomic dysfunction.

Heart rate variability

Understanding the role of heart rate variability in the development and maintenance of mental illnesses

Effects of Public Green Space on Acute Psychophysiological Stress Response: A Systematic Review and Meta-Analysis of the Experimental and Quasi-Experimental Evidence

Contact with nature is widely considered to ameliorate psychological stress, but the empirical support for a causal link is limited. We conducted a systematic review to synthesize and critically assess the evidence. Six electronic databases were …

Resting heart rate variability, attention and attention maintenance in young adults

Heart rate variability (HRV) is a widely used measure that reflects autonomic (parasympathetic) control of the heart. HRV has been linked with attentional performance, but it is unclear to what extent resting HRV is associated with both attention and …

Circadian Rhythms, Sleep, and the Autonomic Nervous System

Reduced heart rate variability in a treatment-seeking early psychosis sample

Reduced cardiac autonomic function is associated with increased risk of cardiovascular disease (CVD), with heart rate variability (HRV) providing an accessible index of cardiac autonomic function. HRV may provide a candidate physiological mechanism …

Cortical Thickness and Resting State Cardiac Function Across the Lifespan: A Cross-Sectional Pooled Mega Analysis

Understanding the association between autonomic nervous system [ANS] function and brain morphology across the lifespan provides important insights into neurovisceral mechanisms underlying health and disease. Resting state ANS activity, indexed by …

Water consumption as a source of error in the measurement of heart rate variability

Heart rate variability (HRV) is a common measure of the autonomic modulation of the heart. To ensure accuracy, various external factors known to affect HRV such as medication use and concurrent illnesses are frequently controlled during measurement. …

Heart Rate Variability in Psychiatric Disorders, Methodological Considerations, and Recommendations for Future Research

Research on heart rate variability (HRV) has been conducted for more than four decades, and the increasing interest in this complex psychophysiological

Sustained attention and heart rate variability in children and adolescents with ADHD

The autonomic nervous system (ANS) plays an important role in attention and self-regulation by modulating physiological arousal to meet environmental demands. Core symptoms of ADHD such as inattention and behavioral disinhibition may be related to …