Hi Jenna,

The message board has moved a couple of times over the years, causing messages to be renumbered. So some links that are more than 12 years old (perhaps) are no longer accessible via the numbers in the link. Sorry for that.

There is one useful message available in that thread: afni.nimh.nih.gov

These alerts are not such a big deal, actually. They are warnings when truncating float values by the conversion to scaled shorts causes large fractional change to the values. But the major cause of this will be where values close to zero get truncated to exactly zero (though that isn't the only possibility). In most instances, the voxels that lead to this warning are ones that you probably do not care about at all (e.g. in this case, residual blur from a warp leaving some voxels near zero).

That message can arise in many instances, and in most it is not a cause for concern. But there are cases where it might be (e.g. do not store actual p-values as shorts :).

Does that seem reasonable?

- rick