{"id":"W3105211913","doi":"10.2196/10140","title":"Instant Stress: Detection of Perceived Mental Stress Through Smartphone Photoplethysmography and Thermal Imaging","year":2018,"lang":"en","type":"article","venue":"JMIR Mental Health","topic":"Non-Invasive Vital Sign Monitoring","field":"Engineering","cited_by":100,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"","keywords":"Photoplethysmogram; Mental stress; Stress (linguistics); Psychology; Medicine; Computer science; Computer vision; Internal medicine","routes":{"ca_aff":false,"ca_fund":false,"ca_venue":true,"about_ca":false,"invisible_to_affiliation_only":true},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0002524432,0.0004705229,0.0003363589,0.0006557641,0.0001028536,0.0003781147,0.0003291401,0.0006310567,0.001112897],"category_scores_gemma":[0.000660909,0.000171953,0.0003526611,0.0002924805,0.0001555338,0.0003608651,0.0003652168,0.0002683889,0.0003542877],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0001318709,"about_ca_system_score_gemma":0.00009926398,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0005071759,"about_ca_topic_score_gemma":0.001115618,"domain_scores_codex":[0.9997646,0.00003916478,0.0000162029,0.00007338622,0.00008481913,0.00002178876],"domain_scores_gemma":[0.9997421,0.00006510273,0.00006738219,0.00002467305,0.00007032694,0.00003050047],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"bench_or_experimental","study_design_gemma":"simulation_or_modeling","study_design_scores_codex":[0.001134201,0.0002696663,0.04296025,0.0007231779,0.0002173682,0.0005800561,0.0002699176,0.003082937,0.5533354,0.000293159,0.002519593,0.3946143],"study_design_scores_gemma":[0.0001454705,0.002303272,0.5926595,0.0001252754,0.0003850088,0.005551008,0.0002528589,0.1618384,0.2298034,0.001124622,0.005604726,0.0002065145],"study_design_candidate":"simulation_or_modeling","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.7527361,0.002305118,0.2393915,0.0002648462,0.0002207463,0.0002569231,0.001018942,0.001216144,0.002589725],"genre_scores_gemma":[0.9267938,0.0006260799,0.07076799,0.0001430466,0.0001774674,0.0001325273,0.0003576449,0.00003179716,0.0009696994],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.001112897,"threshold_uncertainty_score":0.003723025,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.00838661876332539,"score_gpt":0.2593170235071807,"score_spread":0.2509304047438553,"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."}}