Skip to main content
. Author manuscript; available in PMC: 2010 Jun 1.
Published in final edited form as: Neuroimage. 2009 Feb 23;46(2):419–431. doi: 10.1016/j.neuroimage.2009.02.014

Fig. 8.

Fig. 8

8(a) Sinusoids in time domain with a phase difference and different exponential decays. S1 = e−atsin(ω1t) and S2 = e−btsin(ω1t + φ2) where a = −0.012, b = −0.015, ω1 = π/32, and φ2 = 12π/32. 8(b) Representation of the causal relationship between sinusoids of different attenuation in the frequency domain using Granger causality test.