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BCIA Continuing Education Posts
The BioSource Faculty Explain Peer-Reviewed Science


BioSource Faculty
Mar 125 min read
5-Minute Science: VLF Activity Is Not Sympathetic
SNS activity is too fast and irregular to be a primary driver of VLF rhythms.
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BioSource Faculty
Jan 725 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.
622 views
1 comment


BioSource Faculty
Dec 23, 20244 min read
5-Min Science: The Brain-Heart Connection
Have you ever wondered how your brain influences your heartbeat?
147 views
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BioSource Faculty
Nov 12, 20246 min read
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.
194 views
1 comment


BioSource Faculty
Oct 23, 202439 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.
491 views
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BioSource Faculty
Oct 12, 20247 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.
283 views
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BioSource Faculty
Sep 24, 202414 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).
293 views
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BioSource Faculty
Aug 7, 202423 min read
A Comprehensive Guide to HRV Myths
This review addresses 14 misconceptions regarding cardiovascular health, HRV measurement, and HRV biofeedback training.
278 views
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BioSource Faculty
Jun 15, 20244 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.
240 views
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BioSource Faculty
May 26, 20247 min read
Provide Slow-Paced Contraction Training Using the Optimal HRV Application
Slow-paced contraction (SPC)Â increases heart rate variability (HRV) as effectively as slow-paced breathing (SPB).
181 views
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BioSource Faculty
Apr 29, 202415 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.
157 views
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Fred Shaffer
Mar 24, 20241 min read
Do longer exhalations increase HRV during slow-paced breathing?
Download our open-access Applied Psychophysiology and Biofeedback inhalation-to-exhalation ratio article.
154 views
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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.
171 views
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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.
263 views
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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.
191 views
1 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,...
717 views
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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...
345 views
1 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%...
549 views
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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...
459 views
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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...
580 views
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