I am new to SPM. I have been using DARTEL for inter-subject
registration of T1 images. Following the manual's instructions, and
keeping the settings to the default, I have used Dartel's Create
Template with images segmented with the New Segment function. In the
final template (template 6) I get a long grey smear above the brain at
the top of the template (identical on both grey and white matter
templates) - it is not on any of the other prior templates (1-5), nor
is it present when I run Create Template using images segmented with
the old Segment function. I have attached a picture of the final 'new
segment' Dartel template to illustrate the problem.
I can easily solve the problem by using the template generated using
the images segmented with the old segment function. However, I was
wondering if anyone knew why this problem arose with the New Segment,
and whether it was a problem with the program, or whether I needed to
adjust some of the setting?
Thank you for your help.