FIGURE 2. Reverse replay events during a single lap.
From the following article:
Reverse replay of behavioural sequences in hippocampal place cells during the awake state
David J. Foster and Matthew A. Wilson
Nature 440, 680-683 (30 March 2006)
doi:10.1038/nature04587

a, The position of the rat as function of time. b, Spikes are shown for each of the cells from Fig. 1c, in the same sequential order. The x axis (time) is the same as, and aligned with, panel a. During the stopping period, coincident spiking events are visible as narrow, vertical lines. c, A section from b with the x axis expanded to reveal reverse replay. In blue, the simultaneously recorded hippocampal EEG shows a co-occurring ripple event.
