Brain implant concept (IMAGE) Purdue University Caption On the tip of this finger is the first brain implant concept shown to enable communication in the brain using electro-quasistatic signals. Credit Purdue University image/Kelsey Lefever Usage Restrictions No restrictions. License Public Domain Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.