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Images from a jointly-arousing collective ritual reveal affective polarization

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BULBULIA Joseph XYGALATAS Dimitrios SCHJOEDT Uffe FONDEVILA ESTEVEZ Sabela SIBLEY Chris G. KONVALINKA Ivana

Rok publikování 2013
Druh Článek v odborném periodiku
Časopis / Zdroj Frontiers in Psychology
Fakulta / Pracoviště MU

Filozofická fakulta

Citace
www online
Doi http://dx.doi.org/10.3389/fpsyg.2013.00960
Obor Filosofie a náboženství
Klíčová slova evolution; fire; Markov chain Monte Carlo; multi-level; religion; ritual
Popis Collective rituals are biologically ancient and culturally pervasive, yet few studies have quantified their effects on participants. We assessed two plausible models from qualitative anthropology: ritual empathy predicts affective convergence among all ritual participants irrespective of ritual role; rite-of-passage predicts emotional differences, specifically that ritual initiates will express relatively negative valence when compared with non-initiates. To evaluate model predictions, images of participants in a Spanish fire-walking ritual were extracted from video footage and assessed by nine Spanish raters for arousal and valence. Consistent with rite-of-passage predictions, we found that arousal jointly increased for all participants but that valence differed by ritual role: fire-walkers exhibited increasingly positive arousal and increasingly negative valence when compared with passengers. This result offers the first quantified evidence for rite of passage dynamics within a highly arousing collective ritual. Methodologically, we show that surprisingly simple and non-invasive data structures (rated video images) may be combined with methods from evolutionary ecology (Bayesian Generalized Linear Mixed Effects models) to clarify poorly understood dimensions of the human condition.
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