I have been trying to use the "Add additional confound EVs" option in Feat (v5.98) to account for motion after running prestats. Using the confoundevs.txt file from our prestats directory (which seems to be the motion parameters since it has the correct number of rows and columns) is giving the following error:

can't read "confoundev_files(0)": no such element in array
   while executing
"file exists $confoundev_files($session) "
   (procedure "feat5:proc_film" line 41)
   invoked from within
"feat5:proc_film $session "
   ("-film" arm line 2)
   invoked from within
"switch -- [ lindex $argv $argindex ] {

       -I {
           incr argindex 1
           set session [ lindex $argv $argindex ]
       }

       -D {
           incr argindex 1
           set..."
   ("for" body line 2)
   invoked from within
"for { set argindex 1 } { $argindex < $argc } { incr argindex 1 } {
   switch -- [ lindex $argv $argindex ] {

       -I {
           incr argindex 1
           set ses..."
   (file "/usr/local/fsl-4.1.3-centos4_64/bin/feat" line 137)

This doesn't appear to be a path error. Am I missing anything?

 

Thanks,

David