The Feasibility of Using Wearable Functional Near-Infrared Spectroscopy (fNIRS) to Study Hemodynamic Response during Mental Arithmetic Task

Functional near-infrared spectroscopy (fNIRS) is the promising non-invasive technique for brain-computer interface (BCI) for brain signal acquisition. Wearable multi-channel fNIRS devices that can provide much comport for applications and researches are commercially available in the market recently. In this study, we research possibility of the wearable multi-channel fNIRS device by evaluating the signal acquisition performance of the wearable fNIRS device based on mental arithmetic task. The results show that the examined device achieves higher performance than conventional large size devices. Therefore, the results also demonstrate that it is effective to use wearable fNIRS device as a tool for study hemodynamic response in the brain.