Functional Brain Imaging

Functional Near-Infrared Spectroscopy (fNIRS) is a non-invasive technology that provides insights into brain function, boasting both high spatial and temporal resolution. Often referred to as an “oximeter for the brain,” fNIRS offers several advantages over Functional Magnetic Resonance Imaging (fMRI).

Key benefits of fNIRS include portability, cost-effectiveness, and silent operation. However, its spatial resolution and penetration depth are lower than those of fMRI.

The Nashville Brain Institute leads the way in the U.S. with its use of fNIRS, specifically employing the OBELAB NIRSIT device—a portable system with 48 channels. This device can monitor oxygen consumption in the prefrontal cortex, allowing healthcare providers and patients to track changes in brain activity during cognitive tasks or other operations. It’s important to note that while fNIRS technology is well-established, the NIRSIT system is not intended for diagnostic purposes related to neuropsychiatric disorders.