Thank you for your response!

 I meant three output strange images:dyads1_dispersion.nii.gz and dyads2_dispersion.nii.gz.and mean_dsamples.nii.gz。I have never seen  these images on the website about the bedpostx. I checked the original scripts from fsl. I don't know how these image were produced. .Now I know that  these images were normal output images by bedpostx.
 thank you again.

On Fri, Nov 19, 2010 at 6:05 PM, Saad Jbabdi <[log in to unmask]> wrote:
Don't worry about these errors, your output should be fine.
What do you mean by "very strange images"? Do you mean they have missing slices, or do you mean you don't know what they mean?
mean_d is the expected posterior for one of the model parameters (see doc/Behrens paper)
the dispersion file quantify the uncertainty on the fibre orientations (higher=more uncertain)


Saad Jbabdi
University of Oxford, FMRIB Centre

JR Hospital, Headington, OX3 9DU, UK
(+44)1865-222466  (fax 717)

Xuemei Lei
National Key Laboratory of Cognitive Neuroscience and Learning
Beijing Normal University
Beijing, China. 100875
Tel: +86-13269171259
Email: [log in to unmask]
Welcome to the Blog: