Xu Cui – Page 35 – Xu Cui while(alive){learn;}

548 Stories by Xu Cui

Secrete usage of xjview: Creating a mask based on anatomy

Many users have created masks from a T-test image; xjView also allows you to create a mask based anatomy. Say, if you want to create a mask of Amygdala, how to do that? (You need to use xjview 8.10. 1 min video demo at http://youtu.be/31q_6jumhhM) 1.

September 12, 2012 4 22 sec read

An fMRI ROI analysis program (beta)

Previously I said I was developing a ROI analysis program (https://www.alivelearn.net/?p=1421). Here it is: Download main program (beta version) at https://www.alivelearn.net/xjview/xjviewpro/xjviewpro.p Download sample input excel file: https://www.

September 10, 2012 3 21 sec read

Convert coordinates in MNI space to matrix space

Quite often you need to convert the coordinates of some voxels in MNI space to regular matrix coordinates. Below is a script to do so: %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%% mni2cor %%%%%%%%%%%%%%%

September 1, 2012 23 43 sec read

What does a wavelet coherence plot tell you?

Can you find any pattern in the two signals, green and blue? The blue signal is the brain wave (measured by NIRS) of a person when he is pressing some buttons (the timing of button pressing is shown in the vertical lines); the green signal is also br

August 27, 2012 31 1 min read

I am developing a fMRI ROI analysis program

Check out the program: https://www.alivelearn.net/?p=1439 This program has a very simple graphic interface – only 2 buttons. The ‘load data’ button will ask you to load an excel file where you specify the path of images and event ti

August 21, 2012 5 21 sec read

于洋/王晓理 2012 奥运会消极比赛录像

2012年伦敦奥运会，在7月31日晚的比赛中，为了避开提前与本方队友在淘汰赛中相遇，女双A组的于洋/王晓理与郑景银/金荷娜，以及女双C组的河贞恩/金窼贞与波莉/乔哈里，都选择了消极对待比赛。这四对组合

August 2, 2012 0 2 sec read

Number in Neuroscience

This is some numbers I collected long time ago. What How Much Where Constants and Equations (a list) go to Brain Facts (a list) go to Metabolic Energy (a list) go to Number of neurons and synapses neurons 1011 synapses 1014 pyramidal neurons >80%

July 19, 2012 2 1 min read

Hyperscanning with Near Infrared Spectroscopy

This is a manuscript Chao and myself prepared for a “commentary”. We think NIRS based hyperscanning has a great potential on the shift from one-person neuroscience to 2-people neuroscience. —- Toward an Ecologically Valid Second-per

May 30, 2012 0 4 min read

The most helpful codes (2 lines) in SPM

While discussing data analysis with a coworker today, I Jokingly said my experience on brain imaging can be condensed into two lines of code: V = spm_vol('filename.img'); % note: spm_vol can also take nii files as input M = spm_read_vols(V); % M is a

May 14, 2012 0 17 sec read