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Appl. Percept."],"published-print":{"date-parts":[[2018,4,30]]},"abstract":"<jats:p>We investigated how two people jointly coordinate their decisions and actions in a co-occupied, large-screen virtual environment. The task for participants was to physically cross a virtual road with continuous traffic without getting hit by a car. Participants performed this task either alone or with another person (see Figure 1). Two separate streams of non-stereo images were generated based on the dynamic locations of the two viewers\u2019 eye-points. Stereo shutter glasses were programmed to display a single image stream to each viewer so that they saw perspectively correct non-stereo images for their eyepoint. We found that participant pairs often crossed the same gap together and closely synchronized their movements when crossing. Pairs also chose larger gaps than individuals, presumably to accommodate the extra time needed to cross through gaps together. 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This study also provides a foundation for future studies examining joint actions in shared VEs where participants are represented by graphic avatars.<\/jats:p>","DOI":"10.1145\/3147884","type":"journal-article","created":{"date-parts":[[2018,3,7]],"date-time":"2018-03-07T19:00:36Z","timestamp":1520449236000},"page":"1-13","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":25,"title":["Acting Together"],"prefix":"10.1145","volume":"15","author":[{"given":"Yuanyuan","family":"Jiang","sequence":"first","affiliation":[{"name":"University of Iowa, Iowa City, IA"}]},{"given":"Elizabeth E.","family":"O'neal","sequence":"additional","affiliation":[{"name":"University of Iowa, Iowa City, IA"}]},{"given":"Junghum Paul","family":"Yon","sequence":"additional","affiliation":[{"name":"University of Iowa, Iowa City, IA"}]},{"given":"Luke","family":"Franzen","sequence":"additional","affiliation":[{"name":"University of Iowa, Iowa City, IA"}]},{"given":"Pooya","family":"Rahimian","sequence":"additional","affiliation":[{"name":"University of Iowa, Iowa City, IA"}]},{"given":"Jodie M.","family":"Plumert","sequence":"additional","affiliation":[{"name":"University of Iowa, Iowa City, IA"}]},{"given":"Joseph K.","family":"Kearney","sequence":"additional","affiliation":[{"name":"University of Iowa, Iowa City, IA"}]}],"member":"320","published-online":{"date-parts":[[2018,3,6]]},"reference":[{"key":"e_1_2_1_1_1","doi-asserted-by":"publisher","DOI":"10.1109\/TVCG.2009.211"},{"key":"e_1_2_1_2_1","doi-asserted-by":"publisher","DOI":"10.1002\/vis.297"},{"key":"e_1_2_1_3_1","doi-asserted-by":"publisher","DOI":"10.1146\/annurev.psych.57.102904.190152"},{"key":"e_1_2_1_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0001-6918(00)00024-X"},{"key":"e_1_2_1_5_1","doi-asserted-by":"publisher","DOI":"10.3200\/35-08-095"},{"key":"e_1_2_1_6_1","doi-asserted-by":"crossref","first-page":"219","DOI":"10.1016\/S0065-2601(08)00405-X","article-title":"Chapter 5 human mimicry","volume":"41","author":"Chartrand Tanya L.","year":"2009","journal-title":"Adv. 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