Does music affect HRV impulse? A time domain study

Abstract

The two-dimensional (2D) Poincaré plot of HRV signal reflects the effect of different external stimuli on ANS. The classification is generally done by fitting an ‘ellipse’ on the dense region of the constructed Poincaré plot of HRV signal. However, 2D Poincaré plot sometimes fails to describe the proper behaviour of the system. One such example is 2D Poincaré plot of HRV signal in pre-music and onmusic condition. In fact, 2D Poincaré plots in pre and on-music condition look almost similar for few subjects. So a proper classification tool is sought for. In this article, an improved technique called ‘3D Poincaré plot with proper delay’ has been applied to properly distinguish the pre-music and on-music state of some normal healthy subjects.