An overview of heart rate variability metrics and norms

F Shaffer, JP Ginsberg - Frontiers in public health, 2017 - frontiersin.org
Healthy biological systems exhibit complex patterns of variability that can be described by
mathematical chaos. Heart rate variability (HRV) consists of changes in the time intervals …

Autonomic dysfunction in posttraumatic stress disorder indexed by heart rate variability: a meta-analysis

M Schneider, A Schwerdtfeger - Psychological medicine, 2020 - cambridge.org
BackgroundChanges in autonomic nervous system (ANS) function have been observed in a
variety of psychological disorders, including posttraumatic stress disorder (PTSD). Analysis …

A critical review of ultra-short-term heart rate variability norms research

F Shaffer, ZM Meehan, CL Zerr - Frontiers in neuroscience, 2020 - frontiersin.org
Heart rate variability (HRV) is the fluctuation in time between successive heartbeats and is
defined by interbeat intervals. Researchers have shown that short-term (∼ 5-min) and long …

A healthy heart is not a metronome: an integrative review of the heart's anatomy and heart rate variability

F Shaffer, R McCraty, CL Zerr - Frontiers in psychology, 2014 - frontiersin.org
Heart rate variability (HRV), the change in the time intervals between adjacent heartbeats, is
an emergent property of interdependent regulatory systems that operate on different time …

Heart rate variability: new perspectives on physiological mechanisms, assessment of self-regulatory capacity, and health risk

R McCraty, F Shaffer - Global advances in health and …, 2015 - journals.sagepub.com
Heart rate variability, the change in the time intervals between adjacent heartbeats, is an
emergent property of interdependent regulatory systems that operates on different time …

Anxiety disorders are associated with reduced heart rate variability: a meta-analysis

JA Chalmers, DS Quintana, MJA Abbott… - Frontiers in …, 2014 - frontiersin.org
Background: Anxiety disorders increase risk of future cardiovascular disease (CVD) and
mortality, even after controlling for confounds including smoking, lifestyle, and …

Context processing and the neurobiology of post-traumatic stress disorder

I Liberzon, JL Abelson - Neuron, 2016 - cell.com
Progress in clinical and affective neuroscience is redefining psychiatric illness as
symptomatic expression of cellular/molecular dysfunctions in specific brain circuits. Post …

Post-traumatic stress disorder and cardiovascular disease

D Edmondson, R von Känel - The Lancet Psychiatry, 2017 - thelancet.com
In this paper, a first in a Series of two, we look at the evidence for an association of post-
traumatic stress disorder with incident cardiovascular disease risk and the mechanisms that …

Cardiac coherence, self-regulation, autonomic stability, and psychosocial well-being

R McCraty, MA Zayas - Frontiers in psychology, 2014 - frontiersin.org
The ability to alter one's emotional responses is central to overall well-being and to
effectively meeting the demands of life. One of the chief symptoms of events such as trauma …

Heart rate variability in atrial fibrillation: The balance between sympathetic and parasympathetic nervous system

AA Khan, GYH Lip, A Shantsila - European journal of clinical …, 2019 - Wiley Online Library
Background Atrial fibrillation (AF) is the commonest abnormal heart rhythm with significant
related morbidity and mortality. Several pathophysiologic mechanisms have been …