Bruce,

Are the things I'm noticing due to using 3.0.3 for everything (including
topology fixer) up to final surfaces, then using 3.0.4?  So I guess the
other "odd" surfaces are acceptable to trust (excluding the medial temp
lobe)?

Thanks!

Derin

> Hi Derin,
>
> it's pretty much impossible to tell if surfaces are crossing from a 2d
> slice. This looks like there was an incorrectly fixed topological defect
> in the hippocampus. You could manually correct it in the wm.mgz volume,
> but we don't really care about the surfaces in this region (cerebral
> cortex)
>
> cheers,
> Bruce
> On Wed, 31 Jan 2007, Derin Cobia wrote:
>
>> I reran our subjects from "final_surfaces" on through autorecon3 using
>> 3.0.4 to correct for the pial surface crossover at the midline (as
>> recommended by Bruce).  Most things look fine, except that there are
>> many
>> portions of the surfaces that appear to "bunch" together.  In one
>> extreme
>> example it appears that the white and pial surface cross.  I've attached
>> some jpgs to demonstrate what I mean.  The close-up is r medial temporal
>> area, while the other shows the "bunching" in the l superior portion,
>> and
>> at the midline.  I understand that the crossing is not correct, but do
>> the
>> other surfaces look appropriate?  Thanks.
>>
>> -Derin
>>
>>
>

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