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 rest for 20s. Then repeat this tapping-rest cycle for 20 times. NIRS signals were recorded by Hitachi ETG-4000. The
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 his brain is scanned (using a NIRS device ETG 4000 in this case). As you can imagine, we need to start the
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 only interested in the display function of xjview, please go to to download.
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 space) for you to download. Visualized in xjview, you can see the mask in the yellow curved lines. It’s actually a surfa
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 block) for a few times. For example, in a typical finger tapping task, we ask the participants to do a finger tapping for
Xu Cui
55 sec read

Extracting wavelet coherence values

In my previous blog ( and in our paper titled “NIRS-based hyperscanning reveals increased interpersonal coherence in superior frontal cortex during cooperation” (full text pdf available ), we have shown
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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 like to demo to me, I am happy to see it. Marco, the salesman of Artinis, gave me a demo of their wireless/portable NIRS
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 person when he is pressing some buttons (the timing of button pressing is shown in the vertical lines); the green signal is also br
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 one-person neuroscience to 2-people neuroscience. —- Toward an Ecologically Valid Second-per
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4 min read