According to the prevailing paradigm in social-cognitive neuroscience, the mental states of individuals become shared when they adapt to each other in the pursuit of a shared goal. We challenge this view by proposing an alternative approach to the cognitive foundations of social interactions. The central claim of this paper is that social cognition concerns the graded and dynamic process of alignment of individual minds, even in the absence of a shared goal. When individuals reciprocally exchange information about each other's minds processes of alignment unfold over time and across space, creating a social interaction. Not all cases of joint action involve such reciprocal exchange of information. To understand the nature of social interactions, then, we propose that attention should be focused on the manner in which people align words and thoughts, bodily postures and movements, in order to take one another into account and to make full use of socially relevant information.
There are many ways to advance our understanding of the human mind by studying different kinds of sociality. Our aim in this introduction is to situate claims about extended cognition within a broader framework of research on human sociality. We briefly discuss the existing landscape, focusing on ways of defending socially extended cognition. We then draw on resources from the recent literature on the socially extended mind, as well as the literature on collective intentionality, to provide a framework for thinking about the social dimension of individual minds. We then turn to a brief overview of the individualistic approaches advanced by Ludwig and Spaulding in this volume. And we close with a discussion of the transformative role of the social mind in individual life presented by Kern and Moll, as well as the distributed approach to interacting systems defended by Goldstone and Theiner.
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