{
  "slug": "2026-09-09-representational-drift-stable-behavior",
  "published_data": {
    "baseline_mice": 6,
    "baseline_PV_day1_mean": 0.55020381470088,
    "baseline_PV_day5_mean": 0.275683387716223,
    "four_task_mice": [
      6,
      5,
      6,
      6
    ],
    "fixed_odor_PV_day1_mean": 0.590967919242637,
    "fixed_odor_PV_day5_mean": 0.316741210749964,
    "paired_mice": 30,
    "stable_dff_larger_mice": 30,
    "median_within_mouse_dff_difference": 0.01782225399975785,
    "stable_dff_median": 0.0421874247681093,
    "unstable_dff_median": 0.02146391645674595,
    "limits": "Published summaries, no ROI re-registration or raw calcium analysis. PV is a within-mouse spatial summary then averaged over mice, not a memory-retention percentage. Error bands are the authors SEM. Stability classes defined retrospectively; activity proxies do not establish a causal excitability intervention."
  },
  "geometry_model": {
    "activity_dimensions": 24,
    "latent_features": 3,
    "train_positions": 128,
    "held_out_positions": 128,
    "seed": 3309,
    "endpoint": [
      {
        "rotation_degrees": 90.0,
        "kind": "readout_null",
        "relative_activity_change": 0.8164965809277261,
        "gram_matrix_max_change": 1.3322676295501878e-15,
        "fixed_decoder_MSE": 9.747763394306803e-33,
        "labelled_refit_test_MSE": 1.4103355526250448e-31
      },
      {
        "rotation_degrees": 90.0,
        "kind": "readout_relevant",
        "relative_activity_change": 0.816496580927726,
        "gram_matrix_max_change": 1.1102230246251565e-15,
        "fixed_decoder_MSE": 0.5,
        "labelled_refit_test_MSE": 5.265744493943519e-32
      }
    ],
    "max_geometry_change": 1.5543122344752192e-15,
    "limits": "Exact constructed linear-algebra example, centred activity may be negative. Geometry is the stimulus Gram matrix. Refit has access to current labels; existence of a decoder is not evidence that a biological circuit can find it without feedback. No model-to-animal time mapping."
  },
  "source_checksums": {
    "climer-fig1.xlsx": "764f54a93d117ceb0fef85f40c5f3a5f51ad4229bee12fda9c4a90b3b5155f9d",
    "climer-fig3.xlsx": "d97653fab2d80374ba64f728d1acad6c397c86013a4eecf90982109ceedacfbd",
    "climer-fig4.xlsx": "a6246b0987b631afafae3e6d9756028467483878063f16a6371fbb9fc439a8bf"
  }
}