Hi David,
My recommendation would be to upsample to 2mm (as opposed to downsample 3mm) as early in the pipeline as possible. It will help reduce partial voluming and aliasing effects throughout the pipeline. If you need more SNR, you can always smooth your data after upsampling.
Best,
An
> On Feb 27, 2016, at 9:46 AM, David Hofmann <[log in to unmask]> wrote:
>
> Hi @all,
>
> I have fMRI data which was collected with a voxel size of 2.3 mm (exactly 2.3x2.3x3). In preprocessing I can specify a voxel size to resample the data and I was wondering what would be the best choice. Is it better to resample the data in 2x2x2 or 3x3x3 in this case?
>
> greetings
>
> David
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