{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,23]],"date-time":"2026-09-23T07:01:57Z","timestamp":1790146917331,"version":"4.0.1"},"reference-count":108,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2026,9,23]],"date-time":"2026-09-23T00:00:00Z","timestamp":1790121600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Psychol."],"abstract":"<jats:p>\n                    This paper investigates movement synchrony between German-speaking participants in spontaneous verbal interaction. In contrast to previous work where interpersonal synchrony was mostly examined in two-person interactions, we studied both dyads (\n                    <jats:italic>n<\/jats:italic>\n                    \u202f=\u202f49) and quartets (\n                    <jats:italic>n<\/jats:italic>\n                    \u202f=\u202f25) of participants, yielding new insights into how bodily coordination emerges in multi-party settings. Drawing on Motion Energy Analysis as a widely recognized video-based method for motion capture, we computed synchrony using windowed cross-correlations, finding that movement synchrony was present in both dyadic and quartet conversations. Furthermore, we found correlational evidence that familiarity between participants contributes to movement synchrony in two-person interactions, as well as to the extent to which individuals synchronize with others in quartets. Additionally, participants\u2019 self-reported affectivity is related to their proclivity to synchronize with their dyadic partner. These findings demonstrate how individual and relationship-level factors shape movement synchrony in both dyadic and quartet informal interactions.\n                  <\/jats:p>","DOI":"10.3389\/fpsyg.2026.1744354","type":"journal-article","created":{"date-parts":[[2026,9,23]],"date-time":"2026-09-23T06:20:32Z","timestamp":1790144432000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":0,"title":["Movement synchrony and familiarity in dyadic and four-person conversations"],"prefix":"10.3389","volume":"17","author":[{"given":"Danny","family":"Dirker","sequence":"first","affiliation":[{"name":"Department of German Studies, Heidelberg University","place":["Heidelberg, Germany"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anja","family":"Stukenbrock","sequence":"additional","affiliation":[{"name":"Department of German Studies, Heidelberg University","place":["Heidelberg, Germany"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wolfgang","family":"Tschacher","sequence":"additional","affiliation":[{"name":"University Hospital of Psychiatry and Psychotherapy, University of Bern","place":["Bern, Switzerland"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1965","published-online":{"date-parts":[[2026,9,23]]},"reference":[{"key":"ref1","doi-asserted-by":"publisher","first-page":"184","DOI":"10.1086\/204160","article-title":"Neocortex size, group size, and the evolution of language","volume":"34","author":"Aiello","year":"1993","journal-title":"Curr. 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