Fig 1.
Average DFTs for male and female sexual desire.
Includes an illustrative sample (gray lines) of 100 out of the 10,000 spectra of the randomized data. *p < 0.05; **p < 0.01; ***p < 0.001.
Fig 2.
Average cross power spectral density for all 133 couples.
Includes and illustrative sample (gray lines) of 100 out of the 10,000 spectra of the randomized data. *p < 0.05; **p < 0.01; ***p < 0.001.
Fig 3.
Polar histograms of the four, statistically significant non-zero cross-spectral frequencies.
Circular mean phase is indicated by the circular mark on the circumference of the plot (consistently close to 0 degrees.
Fig 4.
DFTs for two partners in an example couple.
Includes an illustrative sample (gray lines) of 100 out of the 10,000 spectra of the randomized data. *p < 0.05; **p < 0.01; ***p < 0.001.
Fig 5.
Cross power spectral density for an example couple.
Includes an illustrative sample (gray lines) of 100 out of the 10,000 spectra of the randomized data. *p < 0.05; **p < 0.01; ***p < 0.001.
Fig 6.
An illustration of the patterns of sexual desire fluctuation for the example couple.