Genetic lineage tracing and live-cell imaging demonstrate that NeuroD1 does not convert microglia into neurons but instead promotes microglial apoptosis, challenging claims of in situ glia-to-neuron conversion.
Carrying 'teaching' signals and modulating movement, two highly conserved functions of the dopaminergic system across all animals, are brought about by the same individual dopaminergic neurons in an insect larva.
Perceptual metamers reveal that the visual system averages luminance over a spatial extent four times smaller than spectral energy, but such estimates depend critically on experimental design choices.
