Figure 2. The remapping patterns of seven place cells (A-G) across the contextual configurations (all complete data sets). A, A unit that had the same place field in all of the contexts (same condition r values: black lemon, 0.89; white lemon, 0.84; black vanilla, 0.91; white vanilla, 0.85; median different condition r values: black lemon and white lemon, 0.72; black lemon and black vanilla, 0.86; black lemon and white vanilla, 0.90; white lemon and black vanilla, 0.57; white lemon and white vanilla, 0.76; black vanilla and white vanilla 0.86). For this unit, all eight trials are displayed. For the units in B-G, only four trials are displayed, one for each context; these units had the same place fields in both trials of each context; the extra trials are omitted to save space. The letter to the left of each figure panel is a description of the context odor (L, lemon; V, vanilla) and refers to each map in that row. The context color is indicated by the dark and light boxes bordering each map (a dark box for the black contexts, a light box for the white contexts). The number inside each box in A indicates the peak firing rate for the corresponding map (in hertz); the two numbers inside each box in B-G indicate the peak firing rates for both trials in the corresponding context, with the rate for the displayed trial given first. Place fields are displayed as contour maps with five levels, each level representing a 20% portion of the peak firing rate for that map (color bar). B, A unit that fired only in the vanilla contexts (black and white), expressing the same place field in both vanilla contexts. C, A unit that fired only in the white contexts (lemon and vanilla). It had the same place field in both white contexts. D, A unit that fired only in the black lemon context. E, A unit that fired only in the lemon contexts (black and white) and remapped between them (compare with the unit in B). F, A unit that had the same place field in the black contexts (lemon and vanilla) but that showed a different place field in the white lemon context and did not fire in the white vanilla context (same condition r values: black lemon, 0.94; white lemon, 0.77; black vanilla, 0.80; median different condition r values: black lemon and white lemon, -0.05; black lemon and black vanilla, 0.74; white lemon and black vanilla, -0.08). G, A unit that fired in all contexts, with the same place field in the white contexts but two new fields in the black lemon and black vanilla contexts.