University Laboratory of Physiology, Parks Road, Oxford OX1 3PT, UK.
GABAergic interneurons play a key role in orchestrating cortical network oscillations. In this issue of Neuron, two studies (Bacci and Huguenard and Vida et al.) identify how networks of fast-spiking interneurons can enhance the regularity, precision, and robustness of their own rhythmicity via individual and collective self-innervation.