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Electrodermal Activity: What It Can Contribute To The Assessment Of The Autonomic Nervous System, Hugo F. Posada-Quintero
Electrodermal Activity: What It Can Contribute To The Assessment Of The Autonomic Nervous System, Hugo F. Posada-Quintero
Doctoral Dissertations
About 70 million people worldwide are affected by dysfunction of the autonomic nervous system (ANS). These dysfunctions can lead to life-threatening conditions, because ANS controls vital functions like heart rate, digestion, respiration, among others. Spectral analysis of heart rate variability (HRV) allows noninvasive assessment of the ANS. However, the low frequencies (0.04-0.15 Hz) of HRV are influenced by the two complementary branches of the ANS, the sympathetic and parasympathetic nervous systems; hence, the spectral analysis cannot separate the dynamics of these autonomic tones. Developing reliable noninvasive techniques for assessment of the ANS dynamics remains a challenge for scientists. Recently, measure …
The Interactive Effects Of Biofeedback-Assisted Stress Management And Training Acquisition In Predicting Health Outcomes, Cary M. Sears
The Interactive Effects Of Biofeedback-Assisted Stress Management And Training Acquisition In Predicting Health Outcomes, Cary M. Sears
ETD Archive
Thirty-seven chronic disease patients were randomized to either a biofeedback-assisted stress management (BFSM) experimental group or a usual care (UC) control condition. It was hypothesized that participants enrolled in the BFSM treatment group would demonstrate lower levels of norepinephrine and depression than those in the UC control condition. It was further hypothesized that training acquisition would modify the main effect of group assignment on depression and norepinephrine. The BFSM group demonstrated significantly lower levels of norepinephrine than the UC group. There were no main effects of BFSM on depression. The training acquisition X group assignment interaction was not significant. Results …