Like Joana (post 046659) I get an error when attempting to non-stationarity correct VBM8 t-maps using Toolbox > VBM8 > Data presentation > Threshold and transform spmT-maps >.Cluster >extent threshold > ..k-value > ...Correct for non-isotropic smoothness >yes.
Here's the error message
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Running 'Threshold and transform spmT-maps'
Use local RPV values to correct for non-stationary of smoothness.
Failed 'Threshold and transform spmT-maps'
Undefined function or variable 'V2R'.
In file "/space/raid/fmri/spm_toolboxes/vbm8_r414/cg_spmT2x.m" (v412), function "cg_spmT2x" at line 312.
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Can someone let me know me if we don't need this correction for VBM8 2-sample t-test valid spatial extent inference. If we need it, how can I get it?
Although Christians instructions for accessing this feature don't specify, I selected the options "apply thresholds without conversion" and an extent threshold of 0 voxels.
Thanks,
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