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Functional Near Infrared Spectroscopy (fNIRS): List of manufactures

Contents Company Products Artinis Brite, OxyMon, OctaMon, PortaMon, PortaLite BIOPAC fNIR 100, fNIR2000M Series CORTIVISION PHOTONCAP Huichuang Medical NirScan-900X, NirSmartⅡ- Pro GOWERLABS NTS fNIRS

Xiaodan Feng
Apr 21, 2020 15 min 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 i

Xu Cui
Aug 27, 2012 1 min read

Wavelet Coherence

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

Xu Cui
Aug 31, 2010 1 min read

SVM regression with libsvm

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

Xu Cui
May 20, 2010 1 min read

浅谈近红外脑成像英文期刊文章撰写

本文作者是刘宁博士作者简介：刘宁，塔夫斯大学生物医学工程博士（Tufts University），斯坦福大学脑科学方向科研人员。 Frontiers 杂志客座编辑（Guest Associate Editor for Fronti

Xu Cui
Jun 23, 2022 11 sec read

nirs2img, create an image file from NIRS data

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

Xu Cui
Oct 2, 2019 51 sec read

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fNIRS 2016

fNIRS 2016 conference will be held in Paris, October 13 – 16, Université Paris Descartes, 12 rue de l’Ecole de Médecine, Paris 75006, FRANCE Check out the society’s home page: http://www.fnirs2016.org/ The 2016 conference will take place in cen

Xu Cui
Jun 6, 2016 33 sec read

DDoS Attack Threat

I recently received an email who threatens to attack a server I am running – unless I pay them 0.2 Bitcoin (about $93 US dollars). Anybody know how to handle this? Below is the email: —– From: [email protected] subject li

Xu Cui
May 26, 2016 42 sec read

Who cited my paper?

Back in 2010 we published a paper titled “Functional Near Infrared Spectroscopy (NIRS) signal improvement based on negative correlation between oxygenated and deoxygenated hemoglobin dynamics“. It is about a really simple method which sur

Xu Cui
May 9, 2016 36 sec read

NIRS manufactures locations

Where are the major NIRS device manufactures? You can see from the map below. There are NIRS manufactures in US, Japan, Europe and Korea. If you are a NIRS manufacture and would like to add to this list, please let me know (leave a comment in this po

Xu Cui
May 4, 2016 16 sec read

Stork is my best research assistant (2): Grant alert

Does my boss have money? I am looking for a postdoc position; does my future boss have enough funding to support me? How much money was awarded to my field (e.g. NIRS)? And who got the money? What are they going to do with the money? Have you ever wo

Xu Cui
Apr 15, 2016 1 min read

Projection of a NIRS channel on a brain surface

When analyzing the data in our concurrent NIRS-fMRI study, we are particularly interested in how the NIRS signals were correlated to the fMRI signal. To answer the question we need to create an ROI (region of interest) in brain which is directly unde

Xu Cui
Apr 11, 2016 35 sec read

Is measuring both oxy and deoxy-Hb useful?

One of the advantages of NIRS is that it measure two values at a time – both oxy- and deoxy-Hb concentration, while fMRI measure only one value, called BOLD. (See a comparison between NIRS and fMRI.) However, what is the use of measuring two va

Xu Cui
Mar 28, 2016 1 min read

T value of a single subject

I usually report a group-level T-test image in the final publications or presentations. But in the early stage of a project when only one or a few subjects have been scanned, I often need to report an activation map for an individual subject after ge

Xu Cui
Mar 14, 2016 1 min read

FDR correction matlab script

The following script is to determine is a channel (or voxel) survives the FDR corrected threshold. Assume you have 48 channels and you already calculated the (uncorrected) p-value of each channel. You put it into an array called p. Now you want to kn

Xu Cui
Mar 14, 2016 40 sec read

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