NIRS
NIRS – NIRScout Extended System – MRI Conditional NIRS system
Near-infrared spectroscopy is a non-invasive, optical procedure to measure brain metabolism. In the laboratory you will find the NIRScout Extended System (MES Forschungssysteme GmbH, NIRx) for recording the relative concentration changes of oxygenated, deoxygenated and total hemoglobin in the blood in the upper layers of the cerebral cortex. The changes of the cerebral blood volume can be measured at different points simultaneously. In the process frequency modulated near-infrared light is radiated through the scalp via optodes (emitters) and therefore allows a non-invasive and stress free measurement. This light passes the scalp, the skull and the upper layers of the cortex. It will eventually be absorbed by the hemoglobin in the blood, reflected depended on the oxygenation and lastly caught again by the optodes (detectors). With the help of the measured changes in the cerebral blood volume, the activity of the brain can be predicted.
Features
- 16 LASER Sources und 16 Avalanche-
- Photodiode-Detectors
- MRI conditional
- LED and Laser mode possible
- Additional Short-Distance channels available to reduce artifacts
- Real-time analysis of NIRS-signal possible (for BCI/Neurofeedback applications)
- The measurement is non-invasive and results in little impairment for the participant.
- Free choice of stimuli.
- The system is movable, therefore it could be used outside of the laboratory (combination of methods e.g. virtual reality)
- Recording and analysis software available
Measuring cabin
The measurement takes place in a cabin which is shielded from noise and electromagnetism designed by Soundblocker.
