fNIRS Optical Brain Imaging

Continuous Wave fNIR Spectroscopy

Continuous Wave fNIR Spectroscopy: Affordable Cognitive Assessment

fNIRS wearable near-infrared spectroscopy based systems enable the continuous, noninvasive, and safe monitoring of changes in blood oxygenation and blood volume related to human brain function. fNIR Systems provide real-time monitoring of tissue oxygenation in the brain as subjects take tests, perform cognitive tasks, and/or receive stimulation. Wireless and wired solutions are available for adult and pediatric subjects.

  • Updated Digital Communication Cables (Sensor Head)
  • Higher Frame Rates—up to 10 Hz
  • Lower noise—almost twice as efficient LEDs
  • Two-way Synchronization
  • Near Sensors—reduced systemic artifacts
  • Compact & Compatible—use new sensors with Imager 2000 or 1200 Series
  • fNIRSoft Pro included in most configurations (upgrade available for others)
  • No Isolation Transformer Required

fNIR Systems readily integrate with B-Alert X-Series EEG for acquisition of multi-channel EEG and monitoring and determination of cognitive states. The fNIR System can also be readily integrated with other physiological and neurobehavioral measures that assess human brain activity, including eye tracking, pupil reflex, respiration and electrodermal activity. fNIR Systems allow researchers to quantitatively assess brain functions, including but not limited to attention, working memory, planning, decision making, problem solving, etc. while individuals perform cognitive tasks.

Subjects wear an fNIRS 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. The subject can sit in front of a computer and take a test or perform mobile tasks. It integrates with stimulus presentation systems and BIOPAC’s virtual reality products.

The fNIRS device provides relative changes in the concentration of oxygenated hemoglobin (oxyHb), deoxygenated hemoglobin (deoxyHb) and total hemoglobin (oxyHb+deoxyHb). The technology empowers researchers by providing greater flexibility for real-life study design, including working within complex lab environments and deploying in various field settings such as, operating room, classroom, cockpit, control stations, training simulators, etc.

fNIRS can also be used in muscle activation studies to increase understanding of underlying control mechanisms that couple oxygen delivery to oxidative metabolism.

Learn more…

fNIR Spectroscopy to Study Learning in Spatial Navigation

Ayaz, H., Shewokis, P. A., Curtin, A., Izzetoglu, M., Izzetoglu, K., Onaral, B. Using MazeSuite and Functional Near Infrared Spectroscopy to Study Learning in Spatial Navigation. J. Vis. Exp. (56), e 3443, DOI: 10.3791/3443 (2011).

Suggested Papers

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fNIRS Lesson Accessories

BSL fNIR Accessories

Part #: BSL-FNIRACC

The BSL fNIRS Accessory Pack provides items used in lesson F01: The fNIRS System and Oxygenation Changes Measured on the…

continuous NIR spectroscopy (NIRS) module

fNIR Imaging Systems

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…

wireless NIRS imager

fNIR Mobile Imaging Systems

Part #: fNIR103M, fNIR203M, fNIR303M

High-performance mobile fNIR Imaging Systems are stand-alone functional brain imaging solutions for continuous NIR spectroscopy (NIRS). These top of the…

NIRS Imaging cable

fNIR Sensor Cable

Part #: RXFNIR-CBL2000L, RXFNIR-CBL2000R

Use this sensor cable to connect a NIRS prefrontal cortex sensor pad to an fNIR Imager 2000 unit LEFT or RIGHT…

fNIR Sensors

Part #: RXFNIR-4, fNIR-Phantom

Functional near-infrared optical brain imaging forehead (prefrontal cortex) sensor pads connect to fNIR System Imager unit to provide real-time oxy-Hb, deoxy-Hb, and raw…

fNIR Sensors 2000

Part #: RXFNIR-2000-18S, RXFNIR-2000-6, RXFNIR-2000-5

These functional near-infrared optical brain imaging forehead (prefrontal cortex) sensor pads connect to an fNIR Imager to provide real-time oxy-Hb, deoxy-Hb,…

fNIR Software Standard Edition

Part #: fNIRSOFT-STD

fNIRSOFT (fS) is a stand-alone software package designed to process, analyze and visualize functional near infrared (fNIR) spectroscopy signals through…

FNIRS imager with data from fNIRSoft and COBI

fNIRS High-Density Imaging Systems

Part #: FNIR303S, FNIR203S, FNIR103S

fNIR Imaging Systems are stand-alone functional brain imaging solutions for continuous NIR spectroscopy (NIRS). They provide an in-lab cognitive function…

fNIR Education System Imager

fNIRS Imaging Education System

Part #: fNIR103E

fNIRS Imaging Systems are stand-alone functional brain imaging solutions for continuous NIR spectroscopy (NIRS). They provide an in-lab cognitive function…

fS Site Licences

fNIRSoft Additional Licenses

Part #: FNIRSOFT-STD-4, FNIRSOFT-PRO-4, FNIRSOFT-STD-9, FNIRSOFT-PRO-9

fNIRSOFT (fS) Standard or Pro software included in systems or purchased separately is a single-user application. For labs that require more…

fNIRSoft Professional Edition

Part #: fNIRSOFT-PRO, fNIRSOFT-PRO-U

fNIRSOFT (fS) is a stand-alone software package designed to process, analyze and visualize functional near infrared (fNIR) spectroscopy signals through…

fS Maintenance

fNIRSoft Update License

Part #: FNIRSOFT-S-UDP1, FNIRSOFT-S-UDP2, FNIRSOFT-S-UDP5, FNIRSOFT-P-UDP1, FNIRSOFT-P-UDP2, FNIRSOFT-P-UDP5

fNIRSoft (fS) Standard or Pro software included in systems or purchased separately includes a one-year maintenance agreement. Customers can continue to…