5-Min Science: The Autonomic Effects of Infraslow Frequency Neurofeedback
The ISF group showed significant improvements, including reduced systolic blood pressure, muscle tension, and skin conductance.
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BCIA Continuing Education Posts
The BioSource Faculty Explain Peer-Reviewed Science
BioSource Faculty
Oct 2339 min read
Neuroscience Breakthroughs Since Graduate School - Part 7: Emotion
Mindfulness research has challenged the popular belief that we should be able to dismiss difficult emotions.
485 views0 comments
BioSource Faculty
Oct 127 min read
5-Min Science: Daily Behavior Can Affect Brain Connectivity for Weeks
Brain connectivity is not static but fluctuates in response to daily environmental and physiological factors.
231 views0 comments
BioSource Faculty
Sep 2414 min read
The Vagus Nerve's Role in Heart Rate Variability
Vagal activity and parasympathetic nervous system function produce respiratory sinus arrhythmia (RSA) and heart rate variability (HRV).
272 views0 comments
BioSource Faculty
Aug 723 min read
A Comprehensive Guide to HRV Myths
This review addresses 14 misconceptions regarding cardiovascular health, HRV measurement, and HRV biofeedback training.
268 views0 comments
BioSource Faculty
Aug 712 min read
A Comprehensive Breathing Myths Guide
Breathing ensures healthy CO2 levels. The main functions of breathing are gas exchange and acid-base (pH) regulation.
348 views1 comment
BioSource Faculty
Jun 154 min read
Upgrade Your HRV Biofeedback System
If you don’t correct dysfunctional breathing patterns like overbreathing, they can compromise the effectiveness of HRVB training.
190 views0 comments
BioSource Faculty
May 267 min read
Provide Slow-Paced Contraction Training Using the Optimal HRV Application
Slow-paced contraction (SPC) increases heart rate variability (HRV) as effectively as slow-paced breathing (SPB).
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BioSource Faculty
Apr 2915 min read
Should You Add Nonlinear HRV Metrics to Your Practice?
Nonlinear heart rate variability metrics have emerged as valuable tools for assessing various physiological and pathological conditions.
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Fred Shaffer
Mar 241 min read
Do longer exhalations increase HRV during slow-paced breathing?
Download our open-access Applied Psychophysiology and Biofeedback inhalation-to-exhalation ratio article.
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BioSource Faculty
Aug 31, 202313 min read
BCIA Essential Skills: ECG
This post covers the ECG Signal Source, ECG Sensors, Skin Preparation, ECG Signal, Sampling Rate, Placements, Artifacts, and Tracking Tests.
167 views0 comments
BioSource Faculty
Aug 27, 202313 min read
BCIA Essential Skills: Blood Volume Pulse
Blood volume pulse (BVP) is an indispensable tool for evaluating and training clients for chronic pain, hypertension, and performance.
236 views0 comments
BioSource Faculty
Jun 28, 20237 min read
Evidence-Based Practice Preview: Part 3
This preview covers Epilepsy, Irritable Bowel Syndrome, Panic Disorder, Post-Traumatic Stress Disorder, and Preeclampsia.
190 views1 comment
BioSource Faculty
Jun 18, 202312 min read
Four Heart Rate Variability Myths
Four HRV myths are Heart Rate Variability Is Bad, Stability Is Good, The Sympathetic Nervous System Plays a Major Role in Short-Term HRV,...
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BioSource Faculty
May 12, 20237 min read
Drug Effects on Heart Rate Variability
Reviewing a list of the medications and social drugs your client is currently taking is essential. They can individually and...
344 views1 comment
BioSource Faculty
Dec 28, 202218 min read
Neuroscience Breakthroughs Since Graduate School - Part 5: Depression
Since major depressive disorder (MDD) is a heterogeneous disorder, researchers study its diverse phenotypes. Heritability ranges from 26%...
527 views0 comments
BioSource Faculty
Dec 12, 20228 min read
Rethinking the Resonance Frequency (RF) - Part 3: Slow-Paced Contraction
Slow-paced contraction (SPC) provides an alternative and unproven method for determining the resonance frequency (RF) in one or two...
458 views0 comments
BioSource Faculty
Dec 3, 202212 min read
Rethinking the Resonance Frequency (RF) - Part 2: Slow-Paced Breathing
Resonance frequency (RF) assessment identifies the stimulation frequency producing the greatest amplitude heart rate oscillations in one...
539 views0 comments
BioSource Faculty
Nov 23, 20229 min read
Rethinking the Resonance Frequency (RF) - Part 1: Understanding Resonance
Randomized controlled trials have demonstrated the efficacy of HRV biofeedback for diverse clinical disorders like depression, diabetes,...
569 views0 comments
BioSource Faculty
Nov 15, 202215 min read
A Guide to Selecting HRV Norms
Measurement context and client characteristics are crucial to interpreting HRV time- and frequency-domain measurements. In this post, we...
670 views1 comment
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