SILVER SPRING, Md.--(BUSINESS WIRE)--SXSW Interactive participants will have the opportunity to test their brain health using the FDA-cleared app DANATM, which was developed by AnthroTronix (www.atinc.com and @AnthroTronix). As visitors take DANATM, an electronic 'brain vital' leaderboard will display test scores. A Silver Spring, Md.-based engineering research and development firm committed to optimizing the interaction between people and technology, AnthroTronix will be exhibiting March 16-17