Hi Freesurfer group, Im attempting to use FS-FAST with resting BOLD data, and I have come across the following error.<br>I tried changing files to non .gz extension, and still have this error..<br><br>$Id: fast_selxavg3.m,v 1.100 2011/03/02 16:14:38 greve Exp $<br>

`fast_selxavg3&#39; is a script from the file /usr/local/freesurfer/fsfast/toolbox/fast_selxavg3.m<br>`fast_ldanaflac&#39; is a function from the file /usr/local/freesurfer/fsfast/toolbox/fast_ldanaflac.m<br>-------------------------<br>

outtop = /media/GOLDIN/FSFAST<br>Extension format = nii.gz<br>error: `MRIread&#39; undefined near line 87 column 7<br>error: called from:<br>error:   /usr/local/freesurfer/fsfast/toolbox/flac_customize.m at line 87, column 5<br>

error:   /usr/local/freesurfer/fsfast/toolbox/fast_selxavg3.m at line 65, column 7<br>------------------------------------------<br><br>When I attempt to use fast_selxavg3 standalone in octave, I get this error.<br><br>octave:1&gt; fast_selxavg3;<br>

error: `sess&#39; undefined near line 26 column 19<br>error: evaluating argument list element number 1<br>error: evaluating argument list element number 1<br>error: called from:<br>error:   /usr/local/freesurfer/fsfast/toolbox/fast_selxavg3.m at line 26, column 8<br>

<br>thanks,<br>Mario Ortega<br>GS4 Washington University in St. Louis, Dept. of Neurology<br>