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!

Multimodal fNIRS-EEG measurements — Analysis approaches
Multi modality, NIRS data analysis Artinis Medical Systems Multi modality, NIRS data analysis Artinis Medical Systems

Multimodal fNIRS-EEG measurements — Analysis approaches

When it comes to deciding on an appropriate data analysis approach in multimodal fNIRS-EEG measurements, the soundest consideration factors ultimately depend on the research question at hand. Therefore, the analysis steps may vary from one study to another. Nonetheless, they can broadly be classified into two strategies: parallel data analysis and informed data analysis.

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Multimodal fNIRS-EEG measurements — Staying in sync
Multi modality Sophie Apprich Multi modality Sophie Apprich

Multimodal fNIRS-EEG measurements — Staying in sync

In this second blog post, we discuss synchronization in multimodality. When using fNIRS and EEG simultaneously, synchronization of both data streams is crucial to achieve temporal correspondence between both signals. Read this post to learn more about how to get to the ideal synchronization solution for you, which can depend on different factors, such as device specifications, software capabilities and experimental setup.

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The Starstim fNIRS - Combining tES brain stimulation and EEG + fNIRS neuroimaging in one headcap
General, Brite, OctaMon, Multi modality Guest User General, Brite, OctaMon, Multi modality Guest User

The Starstim fNIRS - Combining tES brain stimulation and EEG + fNIRS neuroimaging in one headcap

Starstim fNIRS is the most adaptable solution to combine tES brain stimulation with EEG and fNIRS neuroimaging in one single wireless and wearable system – and what makes it the most versatile solution for researchers and clinicians in many application areas. The possibility to combine tES with multiple neuroimaging modalities in one device facilitates altering human behavior and acquiring a more complete picture of the brain. It further increases application possibilities and reduces set-up and measurement time.

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Heart rate extraction from NIRS signal
General, OxyMon, NIRS data analysis Artinis Medical Systems General, OxyMon, NIRS data analysis Artinis Medical Systems

Heart rate extraction from NIRS signal

A commonly asked question is “What are the advantages of NIRS over EEG?”. NIRS signals are, in general, less susceptible to artifacts like motion artifacts or electrical noises. There are, however, also physiological components such as heartbeat, breathing, and Mayer-waves present in the signal. Although not an artifact, these components are usually filtered out since they are not useful in determining the pure hemodynamic response signal of the brain. Nevertheless, there is interesting information in the heartbeat. In this blog, we talk about taking advantage of the heartbeat in the NIRS signals and extracting the heart rate signal from them.

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Exercise Physiology integrating NIRS, ECG, and EMG as a learning tool
PortaMon, Sports science Artinis Medical Systems PortaMon, Sports science Artinis Medical Systems

Exercise Physiology integrating NIRS, ECG, and EMG as a learning tool

Innovations travel back and forth between different departments within Artinis. Application Specialists give insight in customer requests, Research and Development find new measurement methods, Design and Engineering constantly look for further improvement of the equipment and Sales and Support find new ways to support every single customer. Especially for new employees, hands-on experience throughout the company is crucial in their development and no better way to do this than to set up a study.

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Combining the world of NIRS and EEG
OxyMon, OctaMon, Brite, General Artinis Medical Systems OxyMon, OctaMon, Brite, General Artinis Medical Systems

Combining the world of NIRS and EEG

EEG and fNIRS are complementary measuring techniques. EEG measures electrophysiological brain activation, that is the electromagnetic field created when neurons in the brain are firing. fNIRS measures the hemodynamic response, that is the change of oxygen in the blood when a brain region becomes active. By combining EEG and fNIRS, a more complete picture of brain activity is obtained: activation of neurons and energy demand of neurons. 

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