Please see attached the fsgd and contrast files. I would like to know how to interpret the max value and its directionnality. For example, for this contrast : g2v1_CN_AD_NPIDSEV.area.lh.fwhm10_group-x-var_neg, does the negative sign of the max demonstrate that the surface areas of the cuneus and inferior parietal are smaller for the CN group than the AD group as depression severity (NPIDSEV) increases ?