Figure 3.
Burst events are triggered by the appearance of objects during natural stimulation. a, Frames 1, 3, 5, and 7 of an eight-frame (256 msec) sequence of the natural scene movie stimulus corresponding to the responses in b. The white circle indicates the RF of the neuron, the responses of which are shown in b. A 48 × 48 pixel region of the entire stimulus for each frame is shown. The inset shows the magnified stimulus inside the RF center. The timeline indicates the onset of each frame (F1-F8). b, A raster plot of the response of a typical neuron to eight repeats of the stimulus shown in a. Spikes that are part of burst events are gray. c-f, Two other stimulus-response pairs for this neuron. Again, for each eight-frame (256 msec) sequence of the stimulus, frames 1, 3, 5, and 7 are shown.