Higher-Order Spectrum in Understanding Nonlinearity in EEG Rhythms

Figure 2

The plots show time series data of (a) 1.5 Hz low-pass filtered WGN, (b) 3 Hz low-pass filtered WGN, (c) 9 Hz low-pass filtered WGN, (d) 30 Hz low-pass filtered WGN, (e) 300 low-pass filtered WGN, and (f) White Gaussian noise.

(a)

(b)

(c)

(d)

(e)

(f)