nirs

How long is fMRI or NIRS signal delayed?

We know the hemodynamic signal measured by fMRI (or NIRS) is delayed respective to the onset of stimuli. But how long is the delay?...
Xu Cui
20 sec read

Sample NIRS finger tapping data

Description: The subject is myself. I did a simple finger tapping task. I continuously tapped my right hand on the table for 10s, then...
Xu Cui
43 sec read

Use MatLab to move and click mouse, to press…

We have an interesting challenge in one of our projects. In our neuroimaging experiment, we need the participant to play a computer game while...
Xu Cui
1 min read

xjView full package download

If you are interested in the full package of xjview, including nirs related scripts, please fill the following form: Name Email If you are...
Xu Cui
9 sec read

Brain surface template

Sometimes we need to work on the surface of a brain. Here I create a surface mask based on the standard avg152T1 image (MNI...
Xu Cui
21 sec read

Handy programs to visualize NIRS data (6): plotAverage

This is the 6th post of the series: Handy programs to visualize NIRS data When we do an experiment, we often repeat an event (or...
Xu Cui
55 sec read

Extracting wavelet coherence values

In my previous blog (https://www.alivelearn.net/?p=1426) and in our paper titled “NIRS-based hyperscanning reveals increased interpersonal coherence in superior frontal cortex during cooperation” (full text...
Xu Cui
24 sec read

Artinis’ PortaLite

Note: I am not affiliated with Artinis and they don’t pay me for this post. If you also sell portable NIRS device and would...
Xu Cui
50 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...
Xu Cui
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...
Xu Cui
4 min read