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 i
Wavelet transform coherence (WTC) is a method for analyzing the coherence and phase lag between two time series as a function of both time and frequency (Chang and Glover 2010). Here I played with it
SVM is mostly commonly used for binary classifications. But one branch of SVM, SVM regression or SVR, is able to fit a continuous function to data. This is particularly useful when the predicted varia
Update 2021/2/27: If you find griddata3 not working, try to change griddata3 to griddata. I was asked where to get nirs2img script. Here it is. The download link is at the bottom of this article. nirs2img is to create an image file from the input data. Then theimage file can be viewed by a
10-20 system is a method to localize brain areas. It uses 4 landmarks of head: 1 the nasion which is the point between the forehead and the nose; 2 the inion which is the lowest point of the skull from the back of the head and is normally indicated
Even though I learned power analysis in elementary statistics class, I totally forget it because I never use it. As we have to put power analysis in our grant, I am forced to relearn this topic. Definition: type II error: null hypothesis should be re
You can only read, but not write to, your external NTFS hard disk? Here is a solution: 1. Go to http://code.google.com/p/macfuse/ and download/install macfuse 2. Go to http://www.macupdate.com/info.php/id/24481/ntfs-3g and download/install ntfs-3g 3.
