Connectivity Thr.: this option allows to restrict analyses on links that are significant in the
first place. Significance values for each link have to be computed beforehand using the
“Create random time series” option. When selecting this checkbox, a selection window
appears which demands you to select the array in which the p-values are stored
(GraphVar will create this array and save it in the subjects .mat file when generating
correlation matrices out of time series signals).


There are three options (accessible via script “src/calc/CalcCorMatrix.m”, line:
“nan_method”) how GraphVar handles the connectivities between nodes that do not
reach significance: “mean” (default: for every connection that is not significant
the mean connectivity value of the entire sample is used for replacement);”nan” (missing
connectivities are treated as Nan); “zero” (missing connectivities are treated as zero).

Keep this in mind when interpreting results derived by applying thresholds