¥The program 3dclust looks for clusters of activity that fit the criteria
set on the command line, and prints
out a report about the active voxels that make up the ROI cluster(s)
¥Example:
å3dclust -1thresh 300 1 200 Ôfunc_fred+tlrc[2]Õ
å
HThe above command
tells 3dclust to find potential cluster volumes for dataset func_fred+tlrc, sub-brick #2, where the threshold has been set to 300
(i.e., ignore voxels with an
activation threshold <300).
Voxels must be no more than 1mm apart, and cluster
volume must be at least 200 micro-liters in size.
HOnce these ROI
clusters have been identified, a report will be printed out:
¥Vol
CM RL CM AP CM IS minRL
maxRL minAP maxAP minIS maxIS Mean SEM Max Int MI RL MI AP MI
IS
¥
¥1208
-31.7 51.7 -22.3 -50.0 -24.0 39.0 73.0 -28.0 -18.0 404.64 2.7707 858.49
-28.0 50.0 -22.0
¥ 522 -41.6 62.9 7.9 -51.0 -34.0 58.0 66.0
2.0
12.0 393.32 3.2221 682.94
-40.0 61.0 7.0
¥ 435 -43.3 71.4 -9.6 -47.0 -38.0 65.0 78.0 -15.0 -5.0 387.9 3.3887 637.87 -44.0
74.0 -9.0
¥
¥2165
-36.3
58.3
-12.6
398.55 1.8649