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Do Longer Exhalations Increase HRV During Slow-Paced Breathing?
Appl Psychophysiol Biofeedback. 2024 Mar 20. doi: 10.1007/s10484-024-09637-2. Online ahead of print.ABSTRACTSlow-paced breathing at an individual's resonance frequency (RF) is a common element of heart rate variability (HRV) biofeedback training (Laborde et al. in Psychophysiology 59:e13952, 2022). Although there is strong empirical support for teaching clients to slow their respiration rate (RR) to the adult RF range between 4.5 and 6.5 bpm (Lehrer & Gevirtz, 2014), there have been no definitive findings regarding the best inhalation-to-exhalation (IE) ratio to increase HRV when breathing within this range. Three meth...
Source: Applied Psychophysiology and Biofeedback - March 20, 2024 Category: Psychiatry & Psychology Authors: Zachary M Meehan Fred Shaffer Source Type: research

Do Longer Exhalations Increase HRV During Slow-Paced Breathing?
AbstractSlow-paced breathing at an individual ’s resonance frequency (RF) is a common element of heart rate variability (HRV) biofeedback training (Laborde et al. in Psychophysiology 59:e13952, 2022). Although there is strong empirical support for teaching clients to slow their respiration rate (RR) to the adult RF range between 4.5 and 6.5 bpm (Lehrer& Gevirtz,2014), there have been no definitive findings regarding the best inhalation-to-exhalation (IE) ratio to increase HRV when breathing within this range. Three methodological challenges have frustrated previous studies: ensuring participants breathed at the tar...
Source: Applied Psychophysiology and Biofeedback - March 20, 2024 Category: Psychiatry Source Type: research

In Memoriam: Maurice B. (Barry) Sterman (1935 –2023), Pioneer of SMR Neurofeedback 'Show me the Data'
(Source: Applied Psychophysiology and Biofeedback)
Source: Applied Psychophysiology and Biofeedback - March 20, 2024 Category: Psychiatry Source Type: research

A Pilot Feasibility Evaluation of a Heart Rate Variability Biofeedback App to Improve Self-Care in COVID-19 Healthcare Workers
This study aimed to examine the feasibility and acceptability of a heart rate variability biofeedback (HRVB) mobile app for improving well-being among healthcare workers reporting elevated disordered eating during COVID-19. We conducted a mixed methods pre-mid-post single-arm pilot feasibility trial (ClinicalTrials.gov NCT04921228). Deductive content analysis of participants' commentary generated qualitative themes. Linear mixed models were used to examine changes in pre- mid- to post-assessment scores on well-being outcomes. We consented 28 healthcare workers (25/89% female; 23/82% Non-Hispanic White; 22/79% nurses) to us...
Source: Applied Psychophysiology and Biofeedback - March 19, 2024 Category: Psychiatry & Psychology Authors: Janell L Mensinger Guy M Weissinger Mary Ann Cantrell Rachel Baskin Cerena George Source Type: research

A Pilot Feasibility Evaluation of a Heart Rate Variability Biofeedback App to Improve Self-Care in COVID-19 Healthcare Workers
This study aimed to examine the feasibility and acceptability of a heart rate variability biofeedback (HRVB) mobile app for improving well-being among healthcare workers reporting elevated disordered eating during COVID-19. We conducted a mixed methods pre-mid-post single-arm pilot feasibility trial (ClinicalTrials.gov NCT04921228). Deductive content analysis of participants ’ commentary generated qualitative themes. Linear mixed models were used to examine changes in pre- mid- to post-assessment scores on well-being outcomes. We consented 28 healthcare workers (25/89% female; 23/82% Non-Hispanic White; 22/79% nurses) to...
Source: Applied Psychophysiology and Biofeedback - March 19, 2024 Category: Psychiatry Source Type: research

The Physiological and Clinical-Behavioral Effects of Heart Rate Variability Biofeedback in Adolescents with Autism: A Pilot Randomized Controlled Trial
Appl Psychophysiol Biofeedback. 2024 Mar 15. doi: 10.1007/s10484-024-09638-1. Online ahead of print.ABSTRACTAdolescents with autism present lower levels of cardiac vagal modulation. It was hypothesized that Heart Rate Variability Biofeedback (HRVB) increases cardiac vagal modulation in adolescents with autism, resulting in positive effects on physiological and psychosocial parameters. It was also hypothesized that home-based HRVB training is feasible. In a single-blind, randomized sham-controlled pilot trial, adolescents with autism performed supervised HRVB (n = 24) or sham training (n = 20). Subsequently, half of the ado...
Source: Applied Psychophysiology and Biofeedback - March 16, 2024 Category: Psychiatry & Psychology Authors: Anoushka Thoen Kaat Alaerts Jellina Prinsen Jean Steyaert Tine Van Damme Source Type: research

Do Miniature Eye Movements Affect Neurofeedback Training Performance? A Combined EEG-Eye Tracking Study
Appl Psychophysiol Biofeedback. 2024 Mar 16. doi: 10.1007/s10484-024-09625-6. Online ahead of print.ABSTRACTEEG-based neurofeedback is a prominent method to modulate one's own brain activity in a desired direction. However, the EEG signal can be disturbed by artifacts, e.g., eye movements, which can consequently confound the neurofeedback performance. Involuntary miniature eye movements can be hardly detected by conventional EEG correction methods such as recording the electro-oculogram (EOG) and subtracting EOG activity from the EEG signal. However, such miniature eye movements can influence EEG activity, especially in th...
Source: Applied Psychophysiology and Biofeedback - March 16, 2024 Category: Psychiatry & Psychology Authors: Silvia Erika Kober Guilherme Wood Sarah Schuster Christof K örner Source Type: research

Do Miniature Eye Movements Affect Neurofeedback Training Performance? A Combined EEG-Eye Tracking Study
AbstractEEG-based neurofeedback is a prominent method to modulate one ’s own brain activity in a desired direction. However, the EEG signal can be disturbed by artifacts, e.g., eye movements, which can consequently confound the neurofeedback performance. Involuntary miniature eye movements can be hardly detected by conventional EEG correction methods such as recordi ng the electro-oculogram (EOG) and subtracting EOG activity from the EEG signal. However, such miniature eye movements can influence EEG activity, especially in the Gamma frequency range, enormously. In the present study, we investigated whether power in diff...
Source: Applied Psychophysiology and Biofeedback - March 16, 2024 Category: Psychiatry Source Type: research

The Physiological and Clinical-Behavioral Effects of Heart Rate Variability Biofeedback in Adolescents with Autism: A Pilot Randomized Controlled Trial
AbstractAdolescents with autism present lower levels of cardiac vagal modulation. It was hypothesized that Heart Rate Variability Biofeedback (HRVB) increases cardiac vagal modulation in adolescents with autism, resulting in positive effects on physiological and psychosocial parameters. It was also hypothesized that home-based HRVB training is feasible. In a single-blind, randomized sham-controlled pilot trial, adolescents with autism performed supervised HRVB (n = 24) or sham training (n = 20). Subsequently, half of the adolescents received HRVB training at home, whereas the other subset did not practice. Physiolo...
Source: Applied Psychophysiology and Biofeedback - March 15, 2024 Category: Psychiatry Source Type: research

Correction to: Utilizing Electromyographic Video Games Controllers to Improve Outcomes for Prosthesis Users
Appl Psychophysiol Biofeedback. 2024 Mar 10. doi: 10.1007/s10484-024-09636-3. Online ahead of print.NO ABSTRACTPMID:38461484 | DOI:10.1007/s10484-024-09636-3 (Source: Applied Psychophysiology and Biofeedback)
Source: Applied Psychophysiology and Biofeedback - March 10, 2024 Category: Psychiatry & Psychology Authors: Shea McLinden Peter Smith Matt Dombrowski Calvin MacDonald Devon Lynn Katherine Tran Kelsey Robinson Dominique Courbin John Sparkman Albert Manero Source Type: research