Cover legend: Cultured rat hippocampal neurons (7 d in vitro) 1.5 h after excitotoxic stimulation with glutamate. The cells are stained for vesicular GABA transporter (green) and β-tubulin (red). Although hippocampal cultures are enriched in glutamatergic neurons, they also contain a small percentage of GABAergic neurons, which project axons throughout the culture. For more information, see the article by Gomes et al. in this issue (pages 4622–4635).