NINS is a way of modulating brain activity from outside the scalp. The term NINS actually encompasses a family of neurostimulation techniques. The flavor our lab uses is called transcranial electrical stimulation (tES).
What is Transcranial Electrical Stimulation (tES)?
tES is a non-invasive neurostimulation technique. It induces a mild electrical field around neurons in the brain by delivering a mild electrical current through the skull via electrodes placed on the scalp. We use currents between 1-2mA in our studies; for comparison, this is less current than is typically needed to light up a small LED on a circuit board. tES has been extensively investigated in neuroscience research, and thousands of research studies involving tens of thousands of participants have been published about the technique.
What does tES feel like?
The majority of participants in tES experiments report a mild sensation of itching, tingling or heat on their scalp.