Hello all.

I have 2 questions.

~1~

I ran 3dLME and used the -resid option (-resid resid+tlrc) to be able to estimate the cluster size for thresholding.

First, I was gonna estimate the noise smoothness with 3dFWHMx -ACF NULL -automask -input resid+tlrc and then estimate the cluster size for thresholding via 3dClustSim -acf 0.591509 4.9806 13.8274 -mask mask+tlrc.

But the output of -resid confuses me.

There are as many subbriks as input files in 3dLME and I don’t know which one to use in 3dFWHMx -ACF NULL -automask -input resid+tlrc[WHICH SUBBRIK?]

~2~

Below is the output I have from 3dFWHMx and I’m using these 3 numbers as input to. 3dClustSim -acf 0.592517 4.97794 13.8289

Are these the 3 numbers I should use?

++ 3dFWHMx: AFNI version=AFNI_18.1.14 (May 15 2018) [64-bit]

++ Authored by: The Bob

++ Number of voxels in automask = 70099

++ start ACF calculations out to radius = 24.94 mm

- ACF done (55.05 CPU s thus far)

# old-style FWHM parameters

0 0 0 0

#
ACF model parameters for a*exp(-r*r/(2*b*b))+(1-a)*exp(-r/c) plus effective FWHM

0.592517 4.97794 13.8289 13.1731

thank you