One of the most challenging questions open in Neuroscience today is the characterization of the brain responses during social interaction. A major limitation of the approaches used in most of the studies performed so far is that only one of the participating brains is measured each time. The "interaction" between cooperating, competing or communicating brains is thus not measured directly, but inferred by independent observations aggregated by cognitive models and assumptions that link behavior and neural activation. In this paper, we present the results of the simultaneous neuroelectric recording of 5 couples of subjects engaged in cooperative games (EEG hyperscanning). The simultaneous recordings of couples of interacting subjects allows to observe and model directly the neural signature of human interactions in order to understand the cerebral processes generating and generated by social cooperation or competition. We used a paradigm called Prisoner's dilemma derived from the game theory. Results collected in a population of 10 subjects suggested that the most consistently activated structure in social interaction paradigms is the orbitofrontal region (roughly described by the Brodmann area 10) during the condition of competition.
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机译：今天神经科学界最具挑战性的问题之一是在社会互动期间表征大脑响应。到目前为止所进行的大多数研究中使用的方法的主要限制是每次只测量参与大动大脑。因此，不直接测量协作，竞争或传送大脑之间的“相互作用”，而是通过认知模型和联系行为和神经激活的假设聚合的独立观察来推断。在本文中，我们介绍了从事合作游戏的5次受试者的同时神经测量的结果（EEG Hyperscanning）。相互作用主体夫妇的同时记录允许直接观察和模型人类相互作用的神经签名，以了解通过社会合作或竞争产生的脑过程。我们使用了一个名为囚犯的困境，从博弈论中衍生出来。在10名受试者中收集的结果表明，社会互动范式中最持续的激活结构是竞争条件期间的奥贝罗族地区（Brodmann Area 10粗略地描述）。
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