Deployable MEMS Devices for Minimally Invasive Monitoring of Cortical Activities

Electrocorticography (ECoG) is a powerful tool for brain activity monitoring with higher spatial resolution and efficacy than noninvasive alternatives such as scalp-based EEG electrodes and NIR spectroscopy. Despite its proven clinical and scientific utility, ECoG has seen rather limited usage due to the invasive nature of electrode placement procedures that involve risky craniotomies (Fig.1 left).