Sábado 17 Fevereiro 2018

Functional Near Infrared Spectroscopy

The functional Near Infrared Spectroscopy (fNIRS) is a technique to assess cerebral cortex metabolism. It uses safe laser light sources placed over the scalp, allowing light to penetrate some centimeters into biological tissues. In this way, after reaching the cerebral cortex and interacting with the oxy- deoxy-hemoglobin, the light is captured back by detectors also placed on the scalp. In this way, the fNIRS allows non-invasive inferences of brain tissues oxygenation, and confirms the location of areas with high brain activity. This method constitutes the functional optical neuroimaging technique. Also, the fNIRS device is portable, and allows its simultaneous use with other assessment and intervention techniques such as electroencephalography and transcranial direct current stimulation (tDCS). Using fNIRS it is possible to improve the understanding of the neurovascular coupling, the neurophysiological fluctuations and further cerebral hemodynamics.

Our laboratory applies fNIRS to study the effects of psychotropic drugs in combination with non-pharmacologic interventions (tDCS) on the cortical activation and hemodynamics in fibromyalgia and endometriosis patients.

Rua Ramiro Barcelos, 2350 - sala 2201E  | Porto Alegre/RS

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