Introduction to fNIRS – Measure brain activity using functional near-infrared spectroscopy

fNIRS (functional near-infrared spectroscopy) is a non-invasive imaging technology. It enables measurement of changes in oxyhemoglobin and deoxyhemoglobin, which reflect local brain activity. fNIRS provides a non-invasive manner to achieve an excellent resolution brain signal in real-time.

Watch our webinar “Introduction to fNIRS” to learn more about the theory of fNIRS, features of fNIRS compared to other modalities, how to use fNIRS and analyse fNIRS data.

More about our fNIRS devices: https://www.artinis.com/fnirs
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0:00 Introduction
1:31 Infrared Light
1:47 NIRS: Absorbers
3:10 NIRS: Scattering & Attenuation
4:37 NIRS: Inputs and outputs
5:09 NIRS: Modified Lambert-Beer Law
8:32 fNIRS: The hemodynamic response
12:20 Overview:fNIRS vs other modalities
15:17 Considerations
16:19 Multi-modal measurements
17:18 Artinis fNIRS devices
20:53 Your Optode Template
23:39 Digitization
24:32 Short separation channels
27:24 Study design: The most used paradigms
29:49 Block design: time course
30:46 Block design: average
33:53 Event-related design
37:55 Task design: stimuli presentation
40:07 A good signal
41:17 Signal components (fNIRS)
43:08 Artifacts
44:03 Analysis