How are attractive and repellent odors coded in the Drosophila peripheral and central nervous system? Does e.g. the glomerular topography of the insect antennal lobe have any significance? We know that male insects optimized to detect conspecific intersexual pheromones have a specific part of the antenna and the lobe devoted to this task, but we know very little regarding the importance of specific sensory neurons and antennal lobe regions beyond this.
