Effect of a humorous audio-visual stimulus on autonomic nervous system and heart of females (original) (raw)
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Advances in Medical Technologies and Clinical Practice, 2018
This chapter is an attempt to understand the effect of audio-visual stimulus with a humorous content on the cardiac electrophysiology. Electrocardiogram (ECG) signals were acquired from 11 female volunteers under the pre- and the post-stimulus conditions. Artificial neural network (ANN)-based classification of the ARMA model coefficients computed from the RR interval signals suggested significant variation in the autonomic nervous system activity. Analysis of the Gabor denoised ECG signals indicated a change in the electrical activity of the heart in the post-stimulus condition, which was confirmed by the ANN-based classification. Recurrence analysis of the RR interval suggested plausible differences of the cardiac activity amongst both the conditions. The audio-visual stimulus has resulted in significant alterations in the ANS and the cardiac physiology.
2017
The current study deciphers the effect of an audio stimulus (Indian classical music) on the autonomic nervous system (ANS) and the cardiac electrophysiology of female volunteers. Electrocardiogram (ECG) readings were obtained from ten volunteers for audio stimulus before and after exposing them to the respective stimuli. Various R-R interval (RRI) based analyses (like Recurrence and HRV analysis) were performed to understand the changes in the ANS and the cardiac electrophysiology. HRV analysis indicated an overall parasympathetic dominance after exposure to the audio stimulus.
Biomedical Engineering: Applications, Basis and Communications, 2016
Physiological reflection of emotions can be tracked by autonomic signals. Several studies have been conducted using autonomic signal processing to examine men and women differences during the exposure of affective stimuli. Emotional pictures and music are two commonly used methods to induce affects in an experimental setup. The biological changes have been commonly monitored during a certain emotional inducement protocol, solely. This study was aimed to examine two induction paradigms involved auditory and visual cues using nonlinear dynamical approaches. To this end, various nonlinear parameters of galvanic skin response (GSR) and pulse signals of men and women were examined. The nonlinear analysis was performed using lagged Poincare parameters, detrended fluctuation indices (DFAs), Lyapunov exponents (LEs), some entropy measures, and recurrence quantification analysis (RQA). The Wilcoxon rank sum test was used to show significant differences between the groups. The results indicat...