Cover picture: Encoding of natural scene movies by tonic and burst spikes in the lateral geniculate nucleus (LGN). The background shows typical responses of X-cells from the cat LGN to natural scene movie stimuli. The foreground shows successive frames from a natural scene movie, with the spatial extent of the receptive field of a typical neuron denoted by white circles. For details, see the article by Lesica and Stanley in this issue (pages 10731–10740).