Hi,
I can't really answer the question of whether the values in
your maps are too large unless I know what the values in
your maps actually are! Can you tell us what values you
have inserted?
All the best,
Mark
On 1 Jul 2010, at 08:59, Juha Pajula wrote:
> Hi!
>
> Could you help me with the 4D activation in POSSUM fMRI simulator?
>
> I got following warning in node logs with every simulation I have
> tried:
>
> Creating activation4D volume and timecourse vector...
> 4D activation mode
> Testing if the values in the activation volumes are smaller than the
> T2* values
> vol= 0
> WARNING: Perturbation in the T2* values bigger than the T2* values.
>
> And after this all processes are terminating.
>
> I have our own data in use so probably there is some error in my
> input data; maybe in 4D activation T2* maps? What the error really
> means, are the values in the maps too large?
>
>
>
> --
> Juha Pajula,
> Research Assistant,
> Methods and Models for Biological Signals and Images group of Signal
> Processing department in Tampere University of Technology,
> Finland
>
|