[caret-users] Paint Volume labels for Macaque F99

[Donna Dierker]

Hamied,

I wouldn't necessarily expect what we call the "paint index" from the 
surface/node-based paint file to match the paint index in the LUT_NAMES 
list.

But I would expect the LUT_NAMES to accurately map the paint name from 
its ordinal position.  This post explains how that works:

http://www.mail-archive.com/caret-users@brainvis.wustl.edu/msg00712.html

If you think your paint volume has mislabeled some voxels, then upload 
it here:

http://pulvinar.wustl.edu/cgi-bin/upload.cgi

... and tell us exactly how you generated it.

The LUT_NAMES should be reliable.

But if you're expecting paint indices to remain constant across paint 
files, mappings, etc., then don't.

Donna

On 07/27/2009 11:54 AM, Hamied Haroon wrote:
>
> Hi,
>
>  
>
> Following the kind advice provided by Donna and David, et al, 
> previously, I have taken each of the Paint Columns available for the 
> Macaque F99UA1 (i.e. Lobes, LVE00, Felleman-VE all, PHT 00, etc) and 
> converted these to Paint Volumes in CARET, which I have then saved as 
> AFNI image volumes on my local disk. This has allowed me to apply the 
> various parcellations to MRI data that I have in the same species of 
> macaque.
>
>  
>
> I originally assumed that the signal intensities in the AFNI (.BRIK) 
> Paint Volume would correspond to the list of anatomical labels under 
> LUT_NAMES in the header (.HEAD). However this correspondence does not 
> seem to hold true for all the labels. For example, in LVE00, the 
> region that has a signal intensity of 18 is certainly V1, but in the 
> LUT_NAMES list 18 corresponds to V4.
>
>  
>
> Could there be any errors in the LUT_NAMES lists in the AFNI .HEAD 
> files, or is there another way to (easily) get a reliable list of the 
> anatomical labels that correspond to the signal intensities in the 
> Paint Volume image file?
>
>  
>
> I look forward to hearing from you.
>
>  
>
> Many thanks.
>
>  
>
> Best wishes,
>
>  
>
> Hamied
>
>  
>
> _________________________________________________________
>
>  
>
>  Hamied A Haroon, PhD
>
>  Research Associate in MR Neuroimaging
>
>  Imaging Science and Biomedical Engineering Research Group
>
>  Research School of Cancer and Imaging Sciences
>
>  Faculty of Medical and Human Sciences
>
>  The University of Manchester
>
>  Room G.603, Stopford Building, Oxford Road, M13 9PT
>
>  Tel: 0161 275 6871   Fax: 0161 275 5145
>
>  Mobile: 07961 488 472
>
>  Email: hamied.haroon at manchester.ac.uk 
> <mailto:hamied.haroon at manchester.ac.uk>
>
>  Web: http://personalpages.manchester.ac.uk/staff/hamied.haroon/
>
> _________________________________________________________
>
>  
>
>  
>
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