{
  "analysis_id": "analysis.ibl-visual-decision.descriptive-psychometric",
  "analysis_type": "descriptive_psychometric",
  "behavtaskatlas_commit": "4fabef6",
  "behavtaskatlas_git_dirty": false,
  "caveats": [
    "Empirical bias and threshold use linear interpolation over empirical p(right). Fitted values use a four-parameter logistic model, not the full IBL psychofit implementation.",
    "No-response trials are included in total trial counts but excluded from the p(right) denominator."
  ],
  "dataset_id": "dataset.ibl-public-behavior",
  "generated_at": "2026-04-27T06:49:00.700724+00:00",
  "n_no_response_trials": 32,
  "n_response_trials": 537,
  "n_trials": 569,
  "prior_results": [
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      "empirical_threshold": 18.75,
      "empirical_threshold_contrast": 18.75,
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        "method": "four_parameter_logistic_binomial_mle",
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        "negative_log_likelihood": 94.03686408659507,
        "optimizer": "scipy.optimize.minimize",
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        "scale_contrast": 13.259448904815777,
        "status": "ok",
        "threshold_contrast": 14.566993507797523
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      "left_lapse_empirical": 0.0,
      "n_contrast_levels": 9,
      "n_response_trials": 199,
      "n_stimulus_levels": 9,
      "n_trials": 215,
      "prior_context": "p_left=0.2",
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      "empirical_bias_contrast": -15.0,
      "empirical_threshold": 11.796875,
      "empirical_threshold_contrast": 11.796875,
      "fit": {
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        "left_lapse": 0.0,
        "method": "four_parameter_logistic_binomial_mle",
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        "negative_log_likelihood": 29.091394556004676,
        "optimizer": "scipy.optimize.minimize",
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        "status": "ok",
        "threshold_contrast": 9.15845263645656
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      "left_lapse_empirical": 0.0,
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      "n_stimulus_levels": 9,
      "n_trials": 90,
      "prior_context": "p_left=0.5",
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      "empirical_threshold": 20.127734107997266,
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  "protocol_id": "protocol.ibl-visual-decision-v1",
  "report_title": "IBL Visual Decision Report",
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  "stimulus_metric_name": "contrast",
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