Hi,
When I use 3dLSS, in a single run, I have three different stimulus conditions: left-eye condition, right-eye condition, and binocular condition. Each condition consists of eight blocks, each block lasts for 8 seconds, accompanied by a blank screen for 12 seconds. When I generate a 1D file with 3dDeconvolve, should I put these three stimulus conditions in one 1D file? If so, should I arrange them according to method (1) or method (2)? And is the method in (3) acceptable?
(1)
3dDeconvolve -nodata 240 2.0 -polort 1 -num_stimts 3 \
-stim_times 1 RE.txt 'BLOCK(8,1)' \
-stim_times 2 BE.txt 'BLOCK(8,1)' \
-stim_times_IM 3 **LE**.txt 'BLOCK(8,1)' \
-x1D Xmat_LSS_LE.1D -x1D_stop -overwrite
(2)
3dDeconvolve -nodata 240 2.0 -polort 1 -num_stimts 1 \
-stim_times_IM 1 **LE_RE_BE**.txt 'BLOCK(8,1)' \
-x1D Xmat_LSS_LEREBE.1D -x1D_stop -overwrite
(3)
3dDeconvolve -nodata 240 2.0 -polort 1 -num_stimts 1 \
-stim_times_IM 1 **LE**.txt 'BLOCK(8,1)' \
-x1D Xmat_LSS_LE.1D -x1D_stop -overwrite
3dDeconvolve -nodata 240 2.0 -polort 1 -num_stimts 1 \
-stim_times_IM 1 **RE**.txt 'BLOCK(8,1)' \
-x1D Xmat_LSS_RE.1D -x1D_stop -overwrite
3dDeconvolve -nodata 240 2.0 -polort 1 -num_stimts 1 \
-stim_times_IM 1 **BE**.txt 'BLOCK(8,1)' \
-x1D Xmat_LSS_BE.1D -x1D_stop -overwrite