{"id":"W4415401797","doi":"10.1001/jamanetworkopen.2025.38416","title":"Heart Rate Variability Biofeedback and Mental Stress Myocardial Flow Reserve","year":2025,"lang":"en","type":"article","venue":"JAMA Network Open","topic":"Heart Rate Variability and Autonomic Control","field":"Medicine","cited_by":2,"is_retracted":false,"has_abstract":true,"ca_institutions":"Canadian VIGOUR Centre; University of Alberta","funders":"National Institutes of Health; University of Alberta","keywords":"Heart rate variability; Biofeedback; Mental stress; Heart rate; Autonomic nervous system","routes":{"ca_aff":true,"ca_fund":true,"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":[0.003992311,0.0001960352,0.0006157114,0.00004095729,0.0002361047,0.000289961,0.0002315169,0.0002073281,0.0003845746],"category_scores_gemma":[0.0003974132,0.0001732214,0.0001078449,0.0003139657,0.0001360191,0.000254492,0.0006372779,0.0003850528,0.00004098765],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0001309869,"about_ca_system_score_gemma":0.0004032433,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0004793138,"about_ca_topic_score_gemma":0.00009024579,"domain_scores_codex":[0.9977536,0.0006878317,0.0004416662,0.0005621828,0.0001160336,0.000438725],"domain_scores_gemma":[0.9984304,0.000595213,0.00005097203,0.0006329603,0.00008490355,0.0002055276],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.003511928,0.0007642349,0.7417779,0.0003611382,0.001081377,0.00004019302,0.0006930162,0.001098135,0.005087211,0.006513435,0.1726065,0.06646489],"study_design_scores_gemma":[0.00502563,0.0001414983,0.6845931,0.0003990995,0.0001140468,0.000007455337,0.00008743872,0.03344948,0.0002786143,0.002120712,0.2735592,0.0002237335],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.898157,0.0003089416,0.0002293318,0.07189126,0.001124454,0.003034299,0.0001203807,0.00008552299,0.02504881],"genre_scores_gemma":[0.988869,0.0000564612,0.002274459,0.005089756,0.0007494502,0.00009249779,0.00008824776,0.00001707968,0.00276308],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.1009527,"threshold_uncertainty_score":0.7063764,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01444207695384753,"score_gpt":0.2887428765305382,"score_spread":0.2743007995766907,"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."}}