Several parameters need to be set in a dynamic connectivity analysis. The window length (time interval used to estimate windowed correlation) gained recent attention after simulated data showed that a minimum length should be observed. This work presents evidence that large window lengths are not free of nuisances and proposes a method to find an appropriate window length. The proposed length is found to be half the average duration of a dynamic connectivity state. Longer window lengths produces cross-talk interference among states.
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