Hi
I am using the Mesh to NII function in SPM8 (and also plan to do this in SPM12b) to convert some evoked response amplitudes to volumetric images. Someone pointed out that the procedure involves some scaling of the data, so the actual values in the NII image are not the same as the values from the mesh. Could you explain that process? The help on the function states that it is safe to use the NII data in statistical analyses so I'm sure it is fine, but it gives no precise details of the scaling procedure, or why it happens.
Thanks
Darren
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