The Coherent Heart
The HeartMath Institute’s most comprehensive scientific monograph to date offers an in-depth understanding of the role of the heart in system-wide coherence and a new perspective on heart–brain interactions and cognitive performance (64 pages).

The Coherent Heart explores communication within and among the body's systems through the generation and transmission of rhythms and patterns of psychophysiological activity. Using the pattern of the heart’s rhythmic activity as the primary physiological marker, six different modes of psychophysiological function are identified, distinguished by their physiological, mental, and emotional correlates. Building on these empirical findings, HMI's research on the psychophysiology of emotions is synthesized for the first time in a typology—a conceptual "map"—of psychophysiological interaction, which is presented graphically.

Explored in depth are the characteristics and benefits of the psychophysiological coherence mode, associated with sustained positive emotions and a global shift to increased synchronization and harmony in psychophysiological processes. Topics covered include how coherence aids in pain reduction, the interactions between heart rhythms and respiration, and how heart coherence affects emotional experience. Of particular interest is the thorough discussion of how coherence improves cognitive performance, which highlights how the heart and brain interact to affect cognitive processes. This section provides a review of past research on heart-brain interactions, presents new research data on heart coherence, and introduces a new hypothesis regarding the influence of "macro-scale" patterns of heart activity on cognition.

Important note: This monograph is intended primarily for researchers, medical professionals, students of psychophysiology and related fields, and laypeople who desire a deep understanding of HeartMath's research.
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The Appreciative Heart: The Psychophysiology of Positive Emotions and Optimal Functioning
The heart's connection with love and other positive emotions has survived throughout millennia and across many diverse cultures. Now, new empirical research is at last providing scientific validation for this age-old association. This 21-page monograph offers a comprehensive understanding of the HeartMath Institute's cutting-edge research exploring the heart's central role in emotional experience.

Described in detail is physiological coherence, a distinct mode of physiological functioning identified by HMI researchers, which is generated during sustained positive emotions and linked with beneficial health and performance-related outcomes. The paper also provides steps and applications of two HeartMath techniques, Freeze-Frame® and Heart Lock-In®, which engage the heart to help transform stress and produce sustained states of coherence. Data from outcome studies are presented, which suggest that these techniques facilitate a beneficial repatterning process at the mental, emotional, and physiological levels.
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The Energetic Heart: Bioelectromagnetic Interactions Within and Between People, by Rollin McCraty, Ph.D.
Even when we're not consciously communicating with others, our physiological systems interact in subtle and surprising ways. Did you know that the electromagnetic signal produced by your heart is registered in the brain waves of people around you? Or that your physiological responses sync up with your mate's during empathetic interactions? Find out why the heart's electromagnetic field is believed to act as a central synchronizing signal within the body, an important carrier of emotional information, and a key mediator of energetic interactions between people. Learn more about new research on heart rhythm coherence and bio-electromagnetic interactions, and its implications for health care, in this well-referenced 20-page monograph.
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Heart-Brain Neurodynamics: The Making of Emotions, by Rollin McCraty, Ph.D.
As pervasive as they are in human experience, emotions have long remained an enigma to science. This comprehensive monograph explores recent scientific advances that clarify central controversies in the study of emotion, including the relationship between intellect and emotion, and the historical debate on the source of emotional experience. A discussion of the critical role of ascending input from the body to the brain in the generation of emotions culminates in a detailed presentation of a new model of emotion in which the brain functions as a complex pattern-matching system. From this perspective it is shown that the heart is a key component of the emotional system, thus providing a physiological basis for the long-acknowledged link between the heart and our emotional life.
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A Practitioners Guide, Applications of using the emWave® Stress Relief System
An in-depth practitioners guide by Dr. Timothy Culbert with Rollin McCraty, Ph.D. and Howard Martin. This 24-page guide offers new tools for stress reduction and emotional management and includes:

how to evaluate your clients.
how to explain the emWave system to your clients.
hands on use and step by step outline for using the emWave system with clients.
practical tips on designing effective strategies.
interviews with practitioners in clinics, hospitals and private practice on applications and results.
descriptions of Heart Rate Variability (HRV) and Psychophysiological Coherence.

Click here to buy The Practitioners Guide

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