Random Field Theory

Submitted by janR on Thu, 02/23/2012 - 01:50

Dear Yan,

It is possible in REST, to correct for multiple comparisons at the cluster level using Gaussian random field theory. I've noticed other programs such as FSL FEAR pre-select Z threshold and use cluster size as a determining significance factors (e.g. min Z >2.3; cluster significance: p < 0.05, corrected). Can such an approach also be adopted in REST?

Regards, Jan R

Submitted by YAN Chao-Gan on Thu, 02/23/2012 - 07:13

Hi!

Good point.
Actually, this has been done and will be integrated into REST in the next release.
Currently, just have a taste from http://www.restfmri.net/forum/Programs_YAN
6. Program for performing Gaussian Random Field theory multiple comparison correction like easythresh in FSL: y_GRF_Threshold.m

Best,

Chao-Gan