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. 2007 Dec 14;3(12):e234. doi: 10.1371/journal.pcbi.0030234

Figure 5. The Network of Temporal Context Cells.

Figure 5

(A) At first, the left (L) and right (R) TCCs are each connected to large recurrent networks of 22 cells each.

(B) When the rat enters the right arm of the maze, the right TCC receives strong external input (200 pA), causing it to fire. With successive spiking, the right TCC can recruit a smaller and smaller portion of its network. The TCC continues to fire without external input only as long as it can recruit a recurrent network of sufficient strength.

(C) Left: time-series plots for the right and left TCCs. Bottom traces are the input current, and top traces are the voltage response. Note that the magnitude of the input current increases (from 100 to 200 pA) as the rat moves from the stem into the arms of the maze. Right: context–place fields for the cells on the left. Note that the context–place fields are extremely broad.