What stays fixed, and what is trained
Input
A task enters where the fly's senses enter: images at the photoreceptors, the state of a body at the neurons that report the fly's own legs. This mapping is trained.
Wiring
Each weight is the number of synapses between two neurons, signed by the neurotransmitter. The weights come from the connectome and are never trained.
Output
Actions are read where the fly's actions leave the brain: at the descending neurons that drive legs and wings in the animal. This readout is trained too.
138,639neurons
15.1Mconnections
0trained weights in the brain
Research