{"fact":"In the crow brain, different types of neurons work together to refine their responses to numbers.  'Broad-spiking' neurons, thought to be the main output neurons, become more selective, while 'narrow-spiking' neurons, believed to be inhibitory, have broader responses.","context":"Both cell types showed clear differences in their capacity to encode categorical information. Nearby and functionally coupled putative projection neurons generally exhibited similar tuning, whereas putative interneurons showed mainly opposite tuning.","source":"Helen M. Ditz; Julia Fechner; Andreas Nieder, Cell-type specific pallial circuits shape categorical tuning responses in the crow telencephalon, 10.1038/s42003-022-03208-z","index":634}