Researchers have developed a micro-brain sensor that can be placed between hair follicles on the scalp to capture high-fidelity signals.
A brain-computer interface (BCI) is a direct communication link between the brain’s electrical activity and external devices, such as computers, robotic limbs and other brain-monitoring devices.
Most commonly, BCIs consist of electrodes mounted on the surface of the scalp to capture brain signals with conductive electrode gel enabling optimum impedance and data quality.
However, rigid sensors and bulky electronics mean these BCIs face significant limitations in terms of continuous use and portability.
Researchers from the Georgia Institute of Technology in Atlanta, US, have overcome these limitations by developing a wearable microneedle BCI wireless sensor that can be inserted into the spaces between hair follicles and slightly under the skin.
Hong Yeo, professor at Georgia Tech’s school of mechanical engineering and a faculty member of the Institute for...