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
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
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
The knowledge of brain-function mapping is accumulated … The Knowledge of brain-function mapping is accumulated … (get rid of the in front of knowledge) Don’t start a sentence with it, this. Instead, specify what it is. Don’t
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
lazy quantifier: Add a question mark (?) after any quantifier to change it to what is known as a lazy quantifier. For example, the following regular expression, which uses the lazy *? quantifier, matches <p> followed by the minimum number of ch
In my datagrid, even when I set the width of some columns explicitly, they always change in an unpredictable way when I (1) resize my window (2) minimize and maximize the window. I finally find the cause: it’s because I used “minWidthR
Assume you have a presentation and you want it to stay on the screen for 10 seconds, you may write code something like pause(10) or WaitSecs(10) It’s fine except you can do nothing within those 10s. What if you want to do something else during
