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jef
March 24, 2021 10:47AM
Hello!

I'm trying to make sure I'm understand how the different parts of how 3dclustsim works.

I noticed if I don't specify a grey matter mask (i.e., no mask flag) in my 3dclustsim analysis, my k values are much lower. Intuitively, I would have expected the opposite. My goal is to include the whole brain in my calculation.

Could you help tease apart why my values vary so dramatically between using a grey matter mask (more stringent p/k value ratios) and no mask? I'm assuming the k values provided with the grey matter mask are correct because they are more stringent, but I just want to make sure I'm understanding why.

Thanks again!
Subject Author Posted

inflated 3dclustsim values with no mask?

jef March 24, 2021 10:47AM

Re: inflated 3dclustsim values with no mask?

RWCox March 24, 2021 05:26PM

Re: inflated 3dclustsim values with no mask?

ptaylor March 24, 2021 06:09PM

Re: inflated 3dclustsim values with no mask?

jef April 16, 2021 10:15AM

Re: inflated 3dclustsim values with no mask?

ptaylor April 16, 2021 10:50AM

Re: inflated 3dclustsim values with no mask?

jef April 16, 2021 02:47PM

Re: inflated 3dclustsim values with no mask?

jef April 28, 2021 05:12PM

Re: inflated 3dclustsim values with no mask?

ptaylor April 28, 2021 05:56PM



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