Lateral Horn (IMAGE) Max Planck Institute for Chemical Ecology Caption The quality and intensity of an odor are represented in three different activity domains in the lateral horn of the fly brain. Pleasant odors activate the green region, disgusting odors activate the red area. The blue and red regions represent the intensity of an odor. Credit Silke Sachse, Max Planck Institute for Chemical Ecology Usage Restrictions None License Licensed content 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.