Evaluating the connectivity of motor area with prefrontal cortex by fNIR spectroscopy

Main objective of this work is to find the connectivity of motor action of the brain with prefrontal lobe, though motor cortex is situated at the later part of frontal lobe. Generally a question arises that is there any connectivity between prefrontal lobe and motor area. This study proposes a statistical method to examine the most prominent area of prefrontal cortex that is consistently connected with the motor action. The main challenge of this work is taking decision on prefrontal activity during motor action. So, in this study motor action is measured from prefrontal cortex by acquiring the oxygen saturation through functional near infrared spectroscopy (fNIRS). The average change in concentration of Hb and HbO2 are taken into account to find the consistent change of concentration by 2 ways ANOVA. Our results show that only 4 channels of prefrontal cortex have significant (p<0.05) connectivity with motor cortex during motor action. This study will be helpful for brain computer interface for motor action.