Gadagkar, R. Survival Strategies: Cooperation and Conflict in Animal Societies (Harvard Univ. Press, 1997).

Henrich, N. & Henrich, J. P. Why Humans Cooperate: A Cultural and Evolutionary Explanation (Oxford Univ. Press, 2007).

Fairchild, H. P. Dictionary of Sociology (Philosophical Library, 1944).

A. W. Green, Sociology: An Analysis of Life in Modern Society (McGraw-Hill, 1972).

Merrill, F. E. Society and Culture: An Introduction to Sociology (Prentice-Hall, 1965).

Bernieri, F. J. & Rosenthal, R. Interpersonal coordination: behavior matching and interactional synchrony. In Fundamentals of Nonverbal Behavior (eds Feldman, R. S. & Rimé, B.) (Cambridge Univ. Press, 1991).

Sebanz, N., Bekkering, H. & Knoblich, G. Joint action: bodies and minds moving together. Trends Cogn. Sci. 10, 70–76 (2006).

Article  PubMed  Google Scholar 

Tomasello, M. & Carpenter, M. Shared intentionality. Dev. Sci. 10, 121–125 (2007).

Article  PubMed  Google Scholar 

Sacheli, L. M., Aglioti, S. M. & Candidi, M. Social cues to joint actions: the role of shared goals. Front. Psychol. 6, 145878 (2015).

Article  Google Scholar 

Agarwal, R., Croson, R. & Mahoney, J. T. The role of incentives and communication in strategic alliances: an experimental investigation. Strateg. Manag. J. 31, 413–437 (2010).

Article  Google Scholar 

Gulati, R., Wohlgezogen, F. & Zhelyazkov, P. The two facets of collaboration: cooperation and coordination in strategic alliances. Acad. Manag. Ann. 6, 531–583 (2012).

Article  Google Scholar 

Sanfey, A. G. Social decision-making: insights from game theory and neuroscience. Science 318, 598–602 (2007).

Article  CAS  PubMed  Google Scholar 

Lee, D. Game theory and neural basis of social decision making. Nat. Neurosci. 11, 404–409 (2008).

Article  CAS  PubMed  PubMed Central  Google Scholar 

Yoo, S. B. M., Hayden, B. Y. & Pearson, J. M. Continuous decisions. Philos. Trans. R. Soc. B Biol. Sci. 376, 20190664 (2021).

Article  Google Scholar 

Gordon, J. et al. The road towards understanding embodied decisions. Neurosci. Biobehav. Rev. 131, 722–736 (2021).

Article  PubMed  PubMed Central  Google Scholar 

Gallotti, M., Fairhurst, M. T. & Frith, C. D. Alignment in social interactions. Conscious. Cogn. 48, 253–261 (2017).

Article  CAS  PubMed  Google Scholar 

Parvizi, J. & Kastner, S. Promises and limitations of human intracranial electroencephalography. Nat. Neurosci. 21, 474–483 (2018).

Article  CAS  PubMed  PubMed Central  Google Scholar 

Berger, C. R. & Calabrese, R. J. Some explorations in initial interaction and beyond: toward a developmental theory of interpersonal communication. Hum. Commun. Res. 1, 99–112 (1974).

Article  Google Scholar 

Mohr, J. & Spekman, R. Characteristics of partnership success: partnership attributes, communication behavior, and conflict resolution techniques. Strateg. Manag. J. 15, 135–152 (1994).

Article  Google Scholar 

Tuckman, B. W. Developmental sequence in small groups. Psychol. Bull. 63, 384 (1965).

Article  CAS  PubMed  Google Scholar 

Shamay-Tsoory, S. G., Saporta, N., Marton-Alper, I. Z. & Gvirts, H. Z. Herding brains: a core neural mechanism for social alignment. Trends Cogn. Sci. 23, 174–186 (2019).

Article  PubMed  Google Scholar 

Stolk, A., Verhagen, L. & Toni, I. Conceptual alignment: how brains achieve mutual understanding. Trends Cogn. Sci. 20, 180–191 (2016).

Article  PubMed  Google Scholar 

Rossignac-Milon, M. & Higgins, E. T. Epistemic companions: shared reality development in close relationships. Curr. Opin. Psychol. 23, 66–71 (2018).

Article  PubMed  Google Scholar 

Koban, L., Ramamoorthy, A. & Konvalinka, I. Why do we fall into sync with others? Interpersonal synchronization and the brain’s optimization principle. Soc. Neurosci. 14, 1–9 (2017).

Article  PubMed  Google Scholar 

Fotopoulou, A. & Tsakiris, M. Mentalizing homeostasis: the social origins of interoceptive inference. Neuropsychoanalysis 19, 3–28 (2017).

Article  Google Scholar 

Kennedy, D. P., Gläscher, J., Tyszka, J. M. & Adolphs, R. Personal space regulation by the human amygdala. Nat. Neurosci. 12, 1226–1227 (2009).

Article  CAS  PubMed  PubMed Central  Google Scholar 

Gottfried, J. A., O’Doherty, J. & Dolan, R. J. Encoding predictive reward value in human amygdala and orbitofrontal cortex. Science 301, 1104–1107 (2003).

Article  CAS  PubMed  Google Scholar 

Liu, Y. et al. Oxytocin modulates social value representations in the amygdala. Nat. Neurosci. 22, 633–641 (2019).

Article  CAS  PubMed  Google Scholar 

Rutishauser, U., Mamelak, A. N. & Adolphs, R. The primate amygdala in social perception—insights from electrophysiological recordings and stimulation. Trends Cogn. Sci. 38, 295–306 (2015).

CAS  Google Scholar 

Adolphs, R. What does the amygdala contribute to social cognition? Ann. N. Y. Acad. Sci. 1191, 42–61 (2010).

Article  PubMed  PubMed Central  Google Scholar 

Gothard, K. M., Battaglia, F. P., Erickson, C. A., Spitler, K. M. & Amaral, D. G. Neural responses to facial expression and face identity in the monkey amygdala. J. Neurophysiol. 97, 1671–1683 (2007).

Article  CAS  PubMed  Google Scholar 

Anderson, A. K. & Phelps, E. A. Lesions of the human amygdala impair enhanced perception of emotionally salient events. Nature 411, 305–309 (2001).

Article  CAS  PubMed  Google Scholar 

Aichhorn, M., Perner, J., Kronbichler, M., Staffen, W. & Ladurner, G. Do visual perspective tasks need theory of mind? Neuroimage 30, 1059–1068 (2006).

Article  PubMed  Google Scholar 

Saxe, R. & Kanwisher, N. People thinking about thinking people: the role of the temporo-parietal junction in ‘theory of mind’. Neuroimage 19, 1835–1842 (2003).

Article  CAS  PubMed  Google Scholar 

Bhatt, M. A., Lohrenz, T., Camerer, C. F. & Montague, P. R. Neural signatures of strategic types in a two-person bargaining game. Proc. Natl Acad. Sci. USA 107, 19720–19725 (2010).

Article  CAS  PubMed  PubMed Central  Google Scholar 

Morishima, Y., Schunk, D., Bruhin, A., Ruff, C. C. & Fehr, E. Linking brain structure and activation in temporoparietal junction to explain the neurobiology of human altruism. Neuron 75, 73–79 (2012).

Article  CAS  PubMed  Google Scholar 

Tang, H. et al. Interpersonal brain synchronization in the right temporo-parietal junction during face-to-face economic exchange. Soc. Cogn. Affect. Neurosci. 11, 23–32 (2016).

Article  PubMed  Google Scholar 

Redcay, E. et al. Live face-to-face interaction during fMRI: a new tool for social cognitive neuroscience. Neuroimage 50, 1639–1647 (2010).

Article  PubMed  Google Scholar 

Walbrin, J., Downing, P. & Koldewyn, K. Neural responses to visually observed social interactions. Neuropsychologia 112, 31–39 (2018).

Article  PubMed  PubMed Central  Google Scholar 

Sommer, M. et al. Neural correlates of true and false belief reasoning. Neuroimage 35, 1378–1384 (2007).

Article  PubMed  Google Scholar 

Carter, M. C., Bowling, D. L., Reeck, C. & Huettel, S. A. A distinct role of the temporo-parietal junction in predicting socially guided decisions. Science 337, 109–111 (2012).

Article