Internal direction-aligned, non-rhythmic trajectories during SWS. Top, raster plot (as in a ) showing activity of internal direction cells during a 3 s extract from SWS. Note the sharp transitions between the up and down states. Bottom, decoded position from a single grid module (as in a ) during each of three highlighted segments of an up state in the top panel. Note the sweep-like position trajectories aligned with the decoded internal direction (green arrows) in each segment.
