Fig. 6: The majority of place fields were elongated instead of spherical.

Source data are provided as a Source Data file. Markers represent place fields. Omnibus test results can be seen in Table 1, post hoc test results are displayed here: *significant at the 0.05 level, **significant at the 0.01 level, ***significant at the 0.001 level. a Cartesian axis and principal axis lengths of place fields in all three mazes (P1-3 are the principal, semi-major and semi-minor axes respectively). b Elongation index of all place fields in each maze. An index of 1 (gray line) would indicate a spherical field, higher values indicate elongation. The percentage of fields that are equally or more spherical than would be expected by chance is given by the text below each boxplot. c Same as b but for sphericity. Values <1 indicate deviation away from a sphere. d Probability density functions of the XYZ and ABC field length data in a. The distribution of Z lengths differs significantly from X and Y in the aligned lattice and the distribution of Z lengths appears to be bimodal (Supplementary Data: Field elongation). In the tilted lattice there are no differences between X, Y & Z or A, B & C. See Supplementary Fig. 7 for further field elongation analyses.