brain

brain images: Change data type of brain image

Last update: 2012/09/04 An image file can be saved in different formats such as uint8 or int16, etc, based on different number of bytes used for each voxel. How to convert between them? Here is one solution using SPM functions (no need SPM’s in
Xu Cui
1 min read

Brain AC-PC line

AC: anterior commissure PC: posterior commissure The Anterior Commissure (precommissure) is a bundle of white fibers, connecting the two cerebral hemispheres across the middle line, and placed in front of the columns of the fornix. On a sagittal sect
Xu Cui
19 sec read

Talk by Frans de Waal

Today I listened to Frans de Waal’s talk on empathy in primates. It’s quite interesting. He wrote several popular books including “Chimpanzee Politics”. Links: Frans de Waal
Xu Cui
5 sec read

Analyze NIRS data with NIRS-SPM

being updated for v01_r14 … NIRS-SPM is a SPM5 and MATLAB-based software package for statistical analysis of near-infrared spectroscopy (NIRS) signals, developed at the Bio Imaging Signal Processing (BISP) lab. at KAIST in Korea. prepare files
Xu Cui
4 min read

brain image preprocessing

convert between different image formats strip skull (FSL bet, or Bet for gui) bet brain.nii brain_noskull.nii register to a standard brain (FSL flirt, or Flirt for gui) Select avg152T1_brain.img as reference, use rigid body (6 parameters) A mat file
Xu Cui
19 sec read

Stanford NIRS lab

Check out Near infrared spectroscopy (NIRS) Lab I take charge of: http://spnl.stanford.edu/tools/nirsCIBSR/nirsHome.htm NIRS allows you to measure neural activities on the surface of the brain. Some labs use NIRS to do brain-computer interface, i.e.
Xu Cui
11 sec read

My brain in many flavors

Below are some pictures of my own brain. 001 rawavg orig nu T1 brainmask norm nu_noneck aseg brain brain.finalsurfs wm.seg wm filled lh.orig.nofix lh.smoothwm.nofix lh.inflated.nofix lh.qsphere.nofix lh.orig lh.white lh.pial lh.smoothwm lh.inflated l
Xu Cui
11 sec read

fMRI: how to do ROI analysis

ROI stands for region of interest. The region is predefined usually from glm contrast. For example, you find visual cortex is activated when a flash is presented through glm analysis, you may then do more analysis on this particular region. ROI analy
Xu Cui
42 sec read

recon-all images

Check out recon-all procedures here rawavg orig nu T1 brainmask norm nu_noneck aseg.auto aseg.auto_noCCseg aseg brain wm.seg filled lh.orig lh.smoothwm lh.inflated.nofix lh.qsphere.nofix lh.white lh.pial lh.inflated lh.sphere
Xu Cui
8 sec read