Difference between revisions of "Neuroimaging"
From ACL@NCU
| Line 10: | Line 10: | ||
== Multiple comparison == | == Multiple comparison == | ||
== Region-of-Interest (ROI) == | == Region-of-Interest (ROI) == | ||
*Creating a half hemisphere mask | |||
<pre> | |||
#left hemisphere selected | |||
3dcalc -a mask_group+tlrc. -expr 'step(x-0)' -prefix test | |||
3dcalc -a mask_group+tlrc. -b test+tlrc -expr 'step(a*b)' \ | |||
-prefix rh_mask | |||
</pre> | |||
---- | |||
= BrainVoyager QX know-how = | = BrainVoyager QX know-how = | ||
Revision as of 18:36, 17 January 2013
AFNI know-how
Preprocessing
- Data import
- use to3d or dimon to convert raw images into AFNI BRIK format
Individual level GLM
Group analysis
Multiple comparison
Region-of-Interest (ROI)
- Creating a half hemisphere mask
#left hemisphere selected
3dcalc -a mask_group+tlrc. -expr 'step(x-0)' -prefix test
3dcalc -a mask_group+tlrc. -b test+tlrc -expr 'step(a*b)' \
-prefix rh_mask
BrainVoyager QX know-how
Preprocessing
Individual level GLM
Group analysis
Multiple comparison
- Cluster threshold estimation (CTE)
- Forming valid mask[3]
- Masking and cluster thresholding[4]
- CTE in BVQX vs. other softwares (AFNI, SPM)[5]
- Solution to "Mask Not Valid!!" problem in CTE