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. 2013 Feb 5;2:e00321. doi: 10.7554/eLife.00321

Figure 3. Journey-dependent coding of a place-specific activity modulated with task-demand.

Representative color-coded rate maps for eight possible trial types. (A) The rate maps with the first cell in (B) show stable place-specific activity in repeated sessions of an identical journey within a given task-demand. The rate was coded on a color scale from blue (silent) to red (maximum rate). The pixels that were not sampled are white. The symbols above the map indicate the journey, task-demand and illuminated light-cue. For each cell, the rate scale corresponds to the peak firing rate in Hz in that condition (indicated to the right of the rate maps). (B) The rate maps for six CA1 pyramidal cells. The maps are averages for repeated sessions. Each row shows the data from one pyramidal cell. Note that different journeys in the same place resulted in place fields similar in locations, but different task-demands caused different firing intensities in those place fields.

DOI: http://dx.doi.org/10.7554/eLife.00321.006

Figure 3.

Figure 3—figure supplement 1. Schematic of the main finding with regard to place fields.

Figure 3—figure supplement 1.

A schematic showing remapping of the place fields that occurred between journeys (spatiotemporal contexts) and task-demands (non-spatial contexts) at the single cell level. Changes in both firing location and rates in the place field (global remapping) occurred between the different journeys. By contrast, only changes in the firing rates (rate remapping) occurred between the task-demands.