[
  {
    "spacing_mm": 0.0,
    "hf_amplitude": 1.0,
    "spike_outlier_rate": 0.05,
    "levenes_test_p": 0.97
  },
  {
    "spacing_mm": 0.5,
    "hf_amplitude": 0.89,
    "spike_outlier_rate": 0.06,
    "levenes_test_p": 0.82
  },
  {
    "spacing_mm": 1.0,
    "hf_amplitude": 0.74,
    "spike_outlier_rate": 0.09,
    "levenes_test_p": 0.67
  },
  {
    "spacing_mm": 2.0,
    "hf_amplitude": 0.52,
    "spike_outlier_rate": 0.14,
    "levenes_test_p": 0.43
  }
]