How one behaves after interacting with a friend may not be the same as before the interaction began What factors a ect the formation of social interactions between people and, once formed, how do social interactions leave lasting changes on individual behavior? In this dissertation, a thorough review and conceptual synthesis is provided Major features of coordination dynamics are demonstrated with examples from both the intrapersonal and interpersonal coordination literature that are interpreted via a conceptual scheme, the causal loops of coordination dynamics An empirical, behavioral study of interpersonal coordination was conducted to determine which spontaneous patterns of coordination formed and whether a remnant of the interaction ensued ("social memory") To assess social memory in dyads, the behavior preceding and following episodes of interaction was compared In the experiment, pairs of people sat facing one another and made continuous flexion-extension finger movements while a window acted as a shutter to control whether partners saw each other's movements Thus, vision ("social contact") allowed spontaneous information exchange between partners through observation Each trial consisted of three successive intervals lasting twenty seconds: without social contact ("me and you"), with social contact ("us"), and again without ("me and you") During social contact, a variety of patterns was observed ranging from phase coupling to transient or absent collective behavior Individuals also entered and exited social coordination differently In support of social memory, compared to before social contact, after contact ended participants tended to remain near each other's movement frequency Furthermore, the greater the stability of coupling, the more similar the partners' post-interactional frequencies were Proposing that the persistence of behavior in the absence of information exchange was the result of prior frequency adaptation, a mathematical model of human movement was implemented with Haken-Kelso-Bunz oscillators that reproduced the experimental findings, even individual dyadic patterns Parametric manipulations revealed multiple routes to persistence of behavior via the interplay of adaptation and other HKB model parameters The experimental results, the model, and their interpretation form the basis of a proposal for future research and possible therapeutic applications / Includes bibliography / Dissertation (PhD)--Florida Atlantic University, 2016 / FAU Electronic Theses and Dissertations Collection

Augmented reality, place-based games utilize GPS-enabled maps and mobile media recording devices to shift traditional classroom activities into real-world contexts. AR-games for second language learning is a new field of research, and few studies have examined the kinds of face-to-face interactions players engage in during AR-games. Using intensive, multi-camera video data of English language learners playing an AR-game, ChronoOps, this thesis describes how groups start and stop walking during gameplay. The method used is conversation analysis, and this study draws from theories of embodied and distributed cognition, situated learning, and interactional competence Walking to and from various destinations as a group is an important action for accomplishing the ChronoOps game. Thus, starting and stopping are sites where players orient to the tasks and environment of the game. Results show that starts and stops are projectable and accountable actions comprised of multiple semiotic fields including linguistic, gestural, and embodied practices. Furthermore, starts and stops are contingent on players' orientation to their place within the campus and game destinations, but also their place within the locally constructed nature of the AR-game task organization. These findings have implications for future research theories of learning in SLA and AR-games.