Re: [Freesurfer] tksurfer retinotopy analysis vs auto parcellation of V1/V2

2011-08-17 Thread Douglas N Greve
You might need to smooth even more. Michelle Umali wrote: > Dear Bruce & Doug, > Thanks I'll do the label comparison. > I am attaching a fieldsign pic to show the irregularity of the > blue/red bands. Can you suggest a method of determining V1/2/3 based > on the odd pattern? > > Thank you very

Re: [Freesurfer] tksurfer retinotopy analysis vs auto parcellation of V1/V2

2011-08-16 Thread Bruce Fischl
Hi Michelle they have to overlap unless the classification was 100% accurate with no variability. You can just pick the label with the highest probability at each vertex cheers Bruce On Tue, 16 Aug 2011, Michelle Umali wrote: > Hi Doug, > So I did the additional smoothing and the map looks bet

Re: [Freesurfer] tksurfer retinotopy analysis vs auto parcellation of V1/V2

2011-08-16 Thread Douglas N Greve
can you send a pic? Michelle Umali wrote: > Hi Doug, > So I did the additional smoothing and the map looks better.. It's > still hard to interpret though. I was expecting alternating red and > blue bands to signify V1/V2/V3 boundaries, but it's very irregular > with red curves running ever

[Freesurfer] tksurfer retinotopy analysis vs auto parcellation of V1/V2

2011-08-16 Thread Michelle Umali
Hi Doug, So I did the additional smoothing and the map looks better.. It's still hard to interpret though. I was expecting alternating red and blue bands to signify V1/V2/V3 boundaries, but it's very irregular with red curves running every which way into blue splotches. Do you have any s