In Artinis NIRS blog, you will find the latest trends in (f)NIRS, NIRS studies and applications, tutor from the leaders of near infrared spectroscopy, not to mention detailed insights and tips and tricks for your research!

The use of Inertial Measurement Unit (IMU) to detect motion artifacts
Brite, PortaLite, General, NIRS data analysis Sophie Apprich Brite, PortaLite, General, NIRS data analysis Sophie Apprich

The use of Inertial Measurement Unit (IMU) to detect motion artifacts

Due to its portability, NIRS and fNIRS devices are often used to measure brain and muscle activity during studies that involve movement. To detect motion artifacts that might occur during these experiments, some of our devices, for instance, Brite and PortaLite MKII, incorporate an inertial measurement unit (IMU). Read this blog post, to learn more about the technology behind IMU and how it is used to detect motion artifacts.

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Tissue Saturation Index (TSI) - Absolute oxygenation measure in local tissues
NIRS data analysis, PortaLite, PortaMon, Sports science Artinis Medical Systems NIRS data analysis, PortaLite, PortaMon, Sports science Artinis Medical Systems

Tissue Saturation Index (TSI) - Absolute oxygenation measure in local tissues

Tissue Saturation Index (TSI) is an absolute measure for the local tissue oxygenation in tissue beneath the sensor. To obtain TSI, a technique called Spatial Resolved Spectroscopy (SRS) is used. TSI can be measured in both brain and muscle. Some of our devices provide the possibility to acquire absolute TSI, next to relative concentration changes in oxy- and deoxygenated hemoglobin. Learn more about the TSI and how to correctly use it in this blogpost.

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Combining Virtual Reality and wearable fNIRS
General, Multi modality, Brite Guest User General, Multi modality, Brite Guest User

Combining Virtual Reality and wearable fNIRS

The application of Virtual Reality (VR) is becoming increasingly important in clinical and psychological research, for instance in exposure therapy or neurorehabilitation. fNIRS can be used to monitor brain activity during application of VR. We tested simultaneous use of VR and fNIRS with our new device, the Brite Frontal. Read in this blogpost, how this went and which advantages using fNIRS during VR application can demonstrate.

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Differences between haemodynamics of planned and spontaneous speech in people who stutter (PWS)
Brite, NIRS data analysis Artinis Medical Systems Brite, NIRS data analysis Artinis Medical Systems

Differences between haemodynamics of planned and spontaneous speech in people who stutter (PWS)

We have received a new update from Liam Barrett, one of the Win a Brite winners, whose research focus is on using biofeedback and fNIRS to promote fluency in people who stutter. In this blog post, he shares his findings on the hemodynamics differences in planned & spontaneous speech between fluent speakers and stuttering people.

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2021 Publication overview with Artinis Near-Infrared Spectroscopy (NIRS) devices

2021 Publication overview with Artinis Near-Infrared Spectroscopy (NIRS) devices

More than 110 papers using our (f)NIRS devices in neuro- and sports science areas were submitted last year. This blog post gives an overview of all papers published in 2021 using Artinis (f)NIRS devices for different application fields/categories, including cortical brain research, sport science, clinical and rehabilitation, hypoxia research, hyperscanning and multimodality.

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Exploring the infant brain with fNIRS
Brite Artinis Medical Systems Brite Artinis Medical Systems

Exploring the infant brain with fNIRS

Testing young babies, between 0 and 2 years of age, is definitely fun, but it also comes with challenges. We asked several developmental researchers to point out the main difficulties they typically encounter and what features an infant-friendly NIRS should have. So, what are these challenges and what can researchers and technology do to overcome them?

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fNIRS analysis toolbox series – Homer
NIRS data analysis Artinis Medical Systems NIRS data analysis Artinis Medical Systems

fNIRS analysis toolbox series – Homer

Here we present Homer3, an open-source MATLAB toolbox for analysis of fNIRS data and for creating maps of brain activation. In this blog post, we present the basic principle of Homer3 and show a simple example of how to read in data, preprocess the data (filtering only), average over trials as well as over subjects, and plot the final result in a graph.

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fNIRS analysis toolbox series – FieldTrip
NIRS data analysis Artinis Medical Systems NIRS data analysis Artinis Medical Systems

fNIRS analysis toolbox series – FieldTrip

Here we present FieldTrip, which is a MATLAB analysis toolbox that was originally designed for electrophysiological data analysis. However, FieldTrip supports fNIRS data analysis as well. It contains high-level functions that can be combined in a MATLAB script. It aims at researchers with a background in neuroscience, engineering, optics and physics.

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