I have a question regarding the length of data used for connectivity analysis.
I am interested in running a connectivity analysis on EEG collected during a working memory task (n-back task). My plan is to take the EEG data after the onset of the stimulus, compute the power spectrum across this window for each frequency band of interest (to return the complex Fourier spectra), and then calculate the connectivity (DwPLI). Due to the nature of the task, I can only use epochs of around 1000ms for the analysis (due to the frequency of the stimuli). I understand that trial length can influence connectivity values. I would typically take epoch lengths which are longer than this (e.g., ~3000ms), however, in this instance, I don’t have that luxury. Just wondering if I can expect to still achieve reliable connectivity results using these shorter epochs?