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fNIR Imaging Systems

Safe, Affordable, Noninvasive Cognitive Function Assessment

Measure neural activity and hemodynamic response in the prefrontal cortex

Multi-channel NIRS optical brain imaging solution

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fNIR Data System
Part #: FNIR103C, FNIR203C, fNIR303C

fNIR Imaging Systems are stand-alone functional brain imaging solutions for continuous NIR spectroscopy (NIRS). They provide an in-lab cognitive function assessment and eliminate a great many of the drawbacks of a functional MRI.

fNIR optical imaging technology measures neural activity and hemodynamic response in the prefrontal cortex. Subjects wear an fNIR sensor (IR light sources and detectors mounted in a flexible band) on the forehead that detects oxygen levels in the prefrontal cortex and provides real-time values for oxy-hemoglobin and deoxygenated hemoglobin. It provides a continuous and real-time display of the oxygen changes as the subject performs different tasks.

Subjects can sit in front of a computer and take a test or perform mobile tasks. fNIR applications include Brain Computer Interface, Human Performance Assessment, Neurorehabilitation, Depth of Anesthesia Monitoring, and more.

fNIR C-series Systems for continuous NIR spectroscopy (NIRS) include

  • Imager 2000C control unit (provides up to 18 channels of information)
  • Sensor(s) and Cable(s),
    • fNIR103C includes one 5-channel sensor and one sensor cable
    • fNIR203C and fNIR303C include three 18-channel sensors and two sensor cables
  • Software for real-time data viewing and post-acquisition analysis
  • Computer only fNIR303C includes a Surface Tablet with Caddy—other C-series Systems do not
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New fNIR2000 C Series

  • Affordable
  • 18-channel
  • Better features

Multi-Discipline Flexibility

Applicable to multiple academic research fields, plus consumer neuroscience & commercial applications.

BIOPAC data acquisition
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Categories: fNIRS Optical Brain Imaging - Research
Subcategories: fNIR Systems - Research

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fNIR analysis topograph

NIRS imaging systemsImager 2000C Specs

  • Max Sources: 4
  • Max Detectors: 12
  • Max Sampling Frequency: 10 Hz
  • Wireless: no
  • Synchronization ports: 1 TTL
  • Dimensions: 106 mm x 32 mm x 160 mm

fNIR analysis data

The fNIR data combines with other physiological variables such as ECG, respiration, cardiac output, blood pressure, electrodermal activity and stimulus response markers. AcqKnowledge software provides automated analysis tools for event related potentials and ensemble averaging. Combining the fNIR data with the other physiological signals provides researchers with a detailed subject assessment.

fNIRSoft (fS) Standard Edition Software

fS is a stand-alone software package designed to process, analyze and visualize functional near infrared (fNIR) spectroscopy signals through a graphical user interface and/or scripting (for auomation). Use fS viewer tools, data management tools, and a scripting engine to view the data in real time and perform post acquisition analysis.

Optional upgrade to fS Pro Edition extends functionality with these additional tools not provided in fS Standard:

  • fS Signal Analysis: Data Processing Tools
  • fS Viewer: Temporal Visualization, Time Series Analysis Tools
  • fS Viewer: Topograph Tools – including brain mapping and visualization over brain surface image

Use fNIR Systems with an MP160 Research System

Synchronize

With the optional BNC connector the Imager 2000C control device can send TTL pulses at the beginning and end of baseline, and at the beginning and end of a recording session. The trigger can be used to start the MP160 for data collection and to record the start and end of each fNIR segment.

Trigger Acquisition

Connect a BNC to BNC cable between the Imager 200S control device BNC trigger and the Isolated Digital Interface Module (STP100C), External Trigger port, and set AcqKnowledge to External trigger.

Record Digital Triggers

To record the triggers, connect a Jumper Cable (JUMP100) between the TRIG and one of the Digital I/O lines on the rear of the Universal Interface Module (UIM100C). Turn on the digital I/O line and the system will record and display the triggers on the digital channel.


For additional details, review these items under the Support tab:

  • fNIR and COBI Studio User Guide for data collection guidelines
  • fNIRSOFT User Manual for a step-by-step guide for using fS, with an introduction to fNIR technology and a discussion of the Modified Beer Lambert Law (MBLL) that is integral to the analysis of fNIR spectroscopy signals
  • fNIRSOFT Scripting Manual for fNIRSOFT programming and command line options

Videos

fNIR COBI Tutorial

fNIRS Lessons Overview

fNIR Webinar | Combining Optical Brain Imaging and Physiological Signals to Study Cognitive Function

Support

Downloads/Resources

Knowledge Base

Manual

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