Linear and Complex Measures of Heart Rate Variability during Exposure to Traffic Noise in Healthy Women

Figure 6

The plot illustrates the component loadings CFP1 to CFP7 for the 500 RR intervals of 31 traffic noise exposure subjects. The CFP values are deduced by using the MTM spectra throughout. The properties of the MTM spectra are as follows: sampling frequency 1 Hz, DPSS of 3, FFT length of 256, and Thomson’s nonlinear combination at “adaptive.” CFP1 and CFP3 are the most influential components when assessed by PCA.