Extended Data Fig. 3: Dimensionality of an earlier training stage.
From: Geometry of abstract learned knowledge in the hippocampus
During the training of the towers task, mice proceed through various stages of training. In one of these training stages, mice perform a task nearly identical to the towers task, except that visual cues only show up on one side of the maze. a, The intrinsic dimensionality of the one-side cues task is approximately 4.2 (4.0–4.5; 95% bootstrapped confidence interval). n = 4 mice; data are mean ± 95% bootstrapped confidence intervals. Grey dashed lines illustrate the slope expected for a four-dimensional manifold. b, Intrinsic dimensionality of the one-side cues task is significantly lower than the dimensionality of the towers task. Two-tailed Wilcoxon rank-sum test, *P = 0.042; n = 7 mice (towers task) and n = 4 mice (one-side cues task); data are mean ± s.e.m. c, Choice-specific place cell sequences in the one-side cues task, similar to Fig. 2a. Sequences are divided into left-choice-preferring (top), right-choice-preferring (middle) and non-preferring (bottom) cells. Data are split between left-choice trials (left) and right-choice trials (right). Cells are shown in the same order within each row group. ΔF/F was normalized within each neuron.
