{"id":"W4396235142","doi":"10.1016/j.biopsych.2024.02.276","title":"41. Brain-Age Prediction: Systematic Evaluation of Site Effects, and Sample Age Range and Size","year":2024,"lang":"en","type":"article","venue":"Biological Psychiatry","topic":"Health, Environment, Cognitive Aging","field":"Environmental Science","cited_by":2,"is_retracted":false,"has_abstract":false,"ca_institutions":"Montreal Neurological Institute and Hospital; University of British Columbia","funders":"","keywords":"Sample size determination; Range (aeronautics); Sample (material); Psychology; Statistics; Mathematics; Physics; Materials science","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"codex-gemma-dda1882f352a","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.001874741,0.0001402119,0.0002330249,0.0000198482,0.00008884474,0.00002775303,0.00006482779,0.0001222225,0.0003615217],"category_scores_gemma":[0.000871819,0.00009965517,0.00004277668,0.000130422,0.000256589,0.00009073703,0.0000997871,0.000137161,0.00006583519],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00007933724,"about_ca_system_score_gemma":0.00001004373,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.000055485,"about_ca_topic_score_gemma":0.00003206808,"domain_scores_codex":[0.9981875,0.0005524755,0.0002858805,0.0004836582,0.0003005454,0.0001899343],"domain_scores_gemma":[0.9982719,0.001381353,0.00006513454,0.0001739172,0.000003703427,0.0001039435],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0000516133,0.0002218569,0.954242,0.01197532,0.00009405065,0.00002374157,0.00130899,0.00003852025,0.01633024,0.0006091492,0.001566709,0.0135378],"study_design_scores_gemma":[0.0004607968,0.0002692127,0.9901718,0.0008119693,0.0000989533,0.00001346168,0.0000934128,0.001688474,0.00002141497,0.005904735,0.0003318959,0.0001338026],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9925375,0.003680315,0.0005682761,0.0005832232,0.0003229388,0.001123867,0.00004219031,0.00005948619,0.001082204],"genre_scores_gemma":[0.9976067,0.0001849093,0.001469601,0.0005191458,0.00008082892,0.00007989944,0.00001070865,0.000009247046,0.00003897553],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.03592986,"threshold_uncertainty_score":0.406382,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.02828899611155346,"score_gpt":0.2869482883156443,"score_spread":0.2586592922040908,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}