has delta, theta, alpha, beta and gamma wave whose frequency ranges correlate to brain states from awake to sleep [28]. Is it possible that there are also different frequencies distributes in the brain of resting-state? In this study, the different dominant frequencies are demonstrated in the gender-related effect. Although the meaning of the dominant frequency in the resting-state is unclear, we suggest that it maybe could provide useful information to characterize the brain connectivity changes with disease and should be considered necessarily for future study.