TRACE Method (image) Aarhus University Share Print E-Mail Caption The scheme shows the TRACE method that labels active inputs to a specific brain area through a retrograde labelling activity depended viral approach. Credit Nathalie Krauth Usage Restrictions Image may be used only to illustrate the research described in the accompanying release. Share Print E-Mail 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.