{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,16]],"date-time":"2026-10-16T08:46:54Z","timestamp":1792140414737,"version":"4.4.0"},"reference-count":42,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2026,10,16]],"date-time":"2026-10-16T00:00:00Z","timestamp":1792108800000},"content-version":"vor","delay-in-days":15,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,10,1]],"date-time":"2026-10-01T00:00:00Z","timestamp":1790812800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100001659","name":"Deutsche Forschungsgemeinschaft","doi-asserted-by":"publisher","award":["SCHU3432\/2\u20101"],"award-info":[{"award-number":["SCHU3432\/2\u20101"]}],"id":[{"id":"10.13039\/501100001659","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001659","name":"Deutsche Forschungsgemeinschaft","doi-asserted-by":"publisher","award":["CR 994\/2\u20101"],"award-info":[{"award-number":["CR 994\/2\u20101"]}],"id":[{"id":"10.13039\/501100001659","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Psychophysiology"],"published-print":{"date-parts":[[2026,10]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    In triadic social interaction, autonomic coordination is dynamic and may be poorly captured by session\u2010level synchrony estimates. We propose a state\u2010based framework to quantify time\u2010varying interpersonal synchrony during a laboratory group decision\u2010making task (Desert Survival Task) using concurrently recorded electrodermal activity (EDA) and ECG\u2010derived heart rate variability (HRV). Twelve triads (36 participants) with complete physiological recordings were analyzed. Signals were segmented into overlapping 60\u2009s windows (1\u2009s step). For each participant, window\u2010level features were extracted (EDA: 4 features; HRV: 74 features), standardized within individuals, and converted to dyadic divergence vectors (absolute differences) for the three dyads in each triad. Divergence vectors (combined EDA plus HRV) were reduced with PCA (95% variance retained) and clustered using a single global\n                    <jats:italic>k<\/jats:italic>\n                    \u2010means model trained on pooled windows to yield five discrete synchrony states shared across triads. States were ordered along the first principal component (PC1) of the divergence space, with its orientation chosen so that State 0 corresponded to the highest\u2010synchrony state (HSS). Triad\u2010level state metrics quantified both prevalence and temporal stability: fractional occupancy rate (FOR), mean dwell time (MDT), and conditional long\u2010run fraction (CLRF; \u2265\u200910\u2009s runs). Empirical triads showed a graded continuum of synchrony across states and a strong bias toward the HSS. Surrogate validation using a leave\u2010one\u2010fixed Iterative Amplitude Adjusted Fourier Transform (IAAFT) null applied at the signal level demonstrated that HSS occupancy and stability exceeded chance alignment (FOR;\n                    <jats:italic>p<\/jats:italic>\n                    \u2009&lt;\u20090.001; MDT and CLRF;\n                    <jats:italic>p<\/jats:italic>\n                    \u2009&lt;\u20090.001). Convergent validity of the proposed state representation was further supported by continuous signal\u2010based benchmarks: compared with State 4, State 0 showed lower dynamic time warping distances and higher lag\u2010optimized physiological linkage (max\n                    <jats:italic>R<\/jats:italic>\n                    <jats:sup>2<\/jats:sup>\n                    ) for both EDA and HRV (all\n                    <jats:italic>p<\/jats:italic>\n                    \u2009&lt;\u20090.001). In contrast, group\u2010mean anxiety measures (SPIN, STAI) were not reliably associated with HSS prevalence or stability in this sample. These findings suggest that discrete synchrony states capture interpretable, non\u2010random coordination regimes in triads and provide a complementary framework for characterizing the temporal organization of autonomic synchrony beyond conventional continuous synchrony measures.\n                  <\/jats:p>","DOI":"10.1111\/psyp.70427","type":"journal-article","created":{"date-parts":[[2026,10,16]],"date-time":"2026-10-16T08:25:51Z","timestamp":1792139151000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["A Dynamic State\u2010Based Framework for Quantifying Triadic Autonomic Synchrony During Group Decision\u2010Making"],"prefix":"10.1111","volume":"63","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8404-5411","authenticated-orcid":false,"given":"Yubraj","family":"Gupta","sequence":"first","affiliation":[{"name":"Department of Psychosomatic Medicine and Psychotherapy Jena University Hospital  Jena Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stefanie","family":"Suttkus","sequence":"additional","affiliation":[{"name":"Department of Psychosomatic Medicine and Psychotherapy Jena University Hospital  Jena Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3429-2895","authenticated-orcid":false,"given":"Uwe","family":"Altmann","sequence":"additional","affiliation":[{"name":"Department of Psychology MSB Medical School Berlin  Berlin Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Feliberto","family":"de la Cruz","sequence":"additional","affiliation":[{"name":"Department of Psychosomatic Medicine and Psychotherapy Jena University Hospital  Jena Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maria","family":"Geisler","sequence":"additional","affiliation":[{"name":"Department of Psychosomatic Medicine and Psychotherapy Jena University Hospital  Jena Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5691-4325","authenticated-orcid":false,"given":"Andy","family":"Schumann","sequence":"additional","affiliation":[{"name":"Department of Psychosomatic Medicine and Psychotherapy Jena University Hospital  Jena Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kar\u2010J\u00fcrgen","family":"B\u00e4r","sequence":"additional","affiliation":[{"name":"Department of Psychosomatic Medicine and Psychotherapy Jena University Hospital  Jena Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,10,16]]},"reference":[{"key":"e_1_2_12_2_1","doi-asserted-by":"publisher","DOI":"10.3390\/e24091307"},{"key":"e_1_2_12_3_1","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0070468"},{"key":"e_1_2_12_4_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41598\u2010020\u201076539\u20108"},{"key":"e_1_2_12_5_1","doi-asserted-by":"publisher","DOI":"10.1037\/0022\u20103514.54.2.243"},{"key":"e_1_2_12_6_1","doi-asserted-by":"publisher","DOI":"10.1111\/psyp.70031"},{"key":"e_1_2_12_7_1","doi-asserted-by":"publisher","DOI":"10.1152\/japplphysiol.00955.2020"},{"key":"e_1_2_12_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.dib.2022.108630"},{"key":"e_1_2_12_9_1","doi-asserted-by":"publisher","DOI":"10.1186\/s12911\u2010019\u20100742\u2010y"},{"key":"e_1_2_12_10_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41583\u2010025\u201000989\u20100"},{"key":"e_1_2_12_11_1","doi-asserted-by":"publisher","DOI":"10.1177\/10888683241252036"},{"key":"e_1_2_12_12_1","doi-asserted-by":"publisher","DOI":"10.3389\/fpsyg.2021.749710"},{"key":"e_1_2_12_13_1","doi-asserted-by":"publisher","DOI":"10.1145\/3314400"},{"key":"e_1_2_12_14_1","doi-asserted-by":"publisher","DOI":"10.3389\/fpsyg.2021.595816"},{"key":"e_1_2_12_15_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41598\u2010020\u201065670\u20101"},{"key":"e_1_2_12_16_1","doi-asserted-by":"publisher","DOI":"10.1037\/rev0000495"},{"key":"e_1_2_12_17_1","doi-asserted-by":"publisher","DOI":"10.1111\/psyp.13857"},{"key":"e_1_2_12_18_1","doi-asserted-by":"publisher","DOI":"10.1080\/00273171.2018.1459292"},{"key":"e_1_2_12_19_1","doi-asserted-by":"publisher","DOI":"10.1037\/cou0000383"},{"key":"e_1_2_12_20_1","doi-asserted-by":"publisher","DOI":"10.3389\/fpsyg.2017.00213"},{"key":"e_1_2_12_21_1","volume-title":"The Desert Survival Situation: Manual: A Group Decision Making Experience for Examining and Increasing Individual and Team Effectiveness","author":"Lafferty J. 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