Functional near-infrared spectroscopy (fNIRS) can be performed using a portable emitter and detector placed on the scalp near a region of interest in the brain. (IMAGE)

SPIE--International Society for Optics and Photonics

Functional near-infrared spectroscopy (fNIRS) can be performed using a portable emitter and detector placed on the scalp near a region of interest in the brain.

Caption

Functional near-infrared spectroscopy (fNIRS) can be performed using a portable emitter and detector placed on the scalp near a region of interest in the brain. By emitting and sensing light at specific frequencies, one can use fNIRS to detect changes in hemoglobin concentration, which correspond to brain activity. A transcranial brain atlas aids 3D localization for configuring optimal target channels. 

Credit

W. Chai, P. Zhang, et al., doi 10.1117/1.NPh.11.1.015002.

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