Dry EEG electrode for use on a hair-covered portion of a person's head
This invention is a dry EEG electrode with an articulated distal base and/or a plurality of articulated conductive proximal protrusions which penetrate between strands of hair for good electromagnetic contact without causing discomfort or skin irritation.
1. An EEG electrode for use on a hair-covered portion of a person's head comprising:
a distal electrode portion;
a proximal electrode portion which further comprises a plurality of electroconductive protrusions which are configured to extend toward the surface of the person's head;
a plurality of articulated movable struts which connect the distal electrode portion to the proximal electrode portion; and
one or more springs between the distal electrode portion and the proximal electrode portion; wherein the one or more springs are configured to be moved by pressure from the surface of a person's head on the protrusions, configured to rotate the proximal electrode portion relative to the distal electrode portion, and configured to slide the protrusions laterally relative to the surface of the person's head to penetrate between hairs on the surface of the person's head.