Topic: mammalian cortex

This lecture examines the development and evolution of insect learning centres. It asks how expanded neuronal populations and cell-type diversity support the behaviour of social species such as ants. Mechanisms in insect mushroom bodies are compared with changes in the mammalian cortex.

This lecture uses the fruit-fly visual system to examine how neuronal diversity emerges from developing stem cells. Differences between the timing of cell division and developmental progression can produce varied cell lineages. The discussion considers how related principles might help explain diversity in the mammalian cortex and retina.