Infrared Brain Functional Imaging System

Infrared Brain Functional Imaging SystemIt can detect the oxygen level in the prefrontal cortex and provide real-time values of oxygenated hemoglobin and deoxygenated hemoglobin. It provides a continuous real-time display of oxygen changes as the subject performs different tasks. Participants can sit in front of a computer for testing or perform mobile tasks. It integrates a stimulation demonstration system and BIOPAC's virtual reality products.

The fNIR device provides relative changes in the concentrations of oxygenated hemoglobin (oxyHb), deoxyhemoglobin (deoxyHb), and total hemoglobin (oxyHb+deoxyHb). This technology provides researchers with greater flexibility for real-world research design, including working in complex laboratory environments and deploying in various on-site environments such as operating rooms, classrooms, cockpits, control stations, training simulators, etc.

It also has many extension functions, such as synchronous measurement with EEG, real-time data transmission, etc., providing necessary support for the research of brain function in a wider range of fields.

Infrared Brain Functional Imaging SystemTechnical features:

Measurement items: Changes in the concentration of oxygenated hemoglobin, deoxygenated hemoglobin, and total hemoglobin in the cerebral cortex area;

Environmental adaptability: The detector filter module greatly improves the ambient light suppression rate and can be monitored in daily lighting environments without the need for light avoidance treatment.

Software features：

FNIRS signal processing supports pre customized configuration of processing parameters or batch processing of multi subject data using system default parameters

Signal filtering and channel selection, with parameters including high pass filtering and low-pass filtering. Specific channel distances can be customized for analysis

FNIRPPF corrects path factors and provides three methods: SCHOLKMANN2013, DUNCAN1996, and custom RED/IR

Support manual signal correction: including LinearInterpolation interpolation method, SplineInterpolation interpolation method, and replication.

The waveform signal can be freely selected, amplified, and reduced for easy browsing; On the basis of presenting data as a whole, data presentation and analysis can also be carried out according to three segmentation methods: fragments, events, and scenes

Real time brain topography analysis (ScalpMap), including topographic maps drawn based on the average concentration or total concentration of oxygenated hemoglobin (HBO2) and deoxyhemoglobin (HB) in selected channels

Time Channel Map, which includes the concentration changes of HBO2 and HB in each channel over time, reflecting the consistency between different channels

Event related analysis, with the ability to select events, segments, and automatically overlay averages, supports modifying event-related windows, baseline, and concentration measurement windows, and can automatically draw time trials, ER concentration waveforms, and brain topography maps drawn from the average or total concentrations of HBO2 and HB. Capable of outputting statistical indicators such as HBO2 * * concentration, HBO2 average concentration, HBO2 latency, HB minimum concentration, HB average concentration, and HB latency within the measurement time window

Visualize charts and export data, support exporting data including: raw data, processed data, analyzed data, overall data report, downsampling data, relative time data, * * time data, etc

The system exports raw data in. nil and. snirf formats, which can be directly imported into Matlab/Homer3 and other software for further analysis and statistics