The mark consists of an outline of the image of a human brain, with a thin vertical line down the middle, creating a left and right half of the brain. Below the left half and the right half of the brain there are each four horizontal wavy or curved lines descending in length with the longest immediately under the respective half of the brain. The horizontal lines are split by the same straight vertical line splitting the brain into a right and left half. The image with the lines resembles a skeleton of the human back, spine and brain as if viewed from behind.