There is no z value for the cluster itself, but you could take the cluster p-value and use it to compute a z value. Or do you want a voxel-wise measure of z value?

On 2/24/2021 4:00 AM, Agurne Sampedro Calvete wrote:

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Dear Freesurfer experts,

In relation to the previous question, could I obtain a Z value of the significant cluster obtained by opening in freeview the z.mgh and place the cursor on the point with the highest value? Is there another way to obtain a Z value or alternatively, a t-value?

Thank you very much in advance,

Best regards,

Agurne

El mar, 23 feb 2021 a las 13:25, Agurne Sampedro Calvete (<a.sampedro@deusto.es>) escribió:

Dear Freesurfer experts,

I am doing a longitudinal repeated measures analysis and after correcting for multiple comparisons with Z Monte Carlo simulation (with the "mri_glmfit-sim ... --cache 3 ..." command), I obtained a significant cluster for my experimental group (pre-post).

In order to obtain the information for displaying the results in the paper, I am looking at the cluster summary table. I have seen that some papers include the t value in addition to the p value, cluster size and coordinates, but how can I obtain the t value? Does it appear in the cluster summary table or elsewhere?

Thank you very much in advance,

Kind regards,

Agurne
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