Topic: clique topology

The peripheral olfactory system analyses odorants through a large number of genetically defined information channels in the antennal lobe (AL), each associated to an olfactory receptor (OR) type. In Drosophila, these channels are combined in two major downstream areas - the mushroom body (MB) and lateral horn (LH). These areas are thought to support different aspects of olfactory information processing: the MB supports ongoing learning, while the LH mediates innate behavioral responses. Here, we provide a geometric analysis of representations in these different areas. We model odorant represe