In this paper we address the epistemological debate between emerging perceptual accounts of knowing other minds and traditional theory of mind approaches to the problem of other minds. We argue that the current formulations of the debate are conceptually misleading and empirically unfounded. Rather, the real contribution of PA is to point out a certain ‘immediacy’ that characterizes episodes of mindreading. We claim that while the intuition of immediacy should be preserved for explaining the nature and function of some cognitive (...) processes of mindreading, the notion of immediacy should apply for describing a particular epistemic attitude and not a particular type of epistemic access. We draw on Wittgenstein's discussions of one's relation to other minds to elaborate our claims and to move the epistemological discussions beyond stalling debates between ToM and PA. (shrink)

Since the publication of Premack and Woodruff’s classic paper introducing the notion of a ‘theory of mind’ :515–526, 1978), interdisciplinary research in social cognition has witnessed the development of theory–theory, simulation theory, hybrid approaches, and most recently interactionist and perceptual accounts of other minds. The challenges that these various approaches present for each other and for research in social cognition range from adequately defining central concepts to designing experimental paradigms for testing empirical hypotheses. But is there any approach that promises (...) to dominate future interdisciplinary research in social cognition? Is social cognition witnessing a gradual paradigm shift where hitherto grounding notions such as theory of mind are no longer viewed as explanatorily necessary? Or have we simply lost our way in attempting to devise adequate experimental setups that could sway the debate in favour of one of the contending accounts? This special issue addresses these questions in an attempt to discover what the future holds for interdisciplinary research in social cognition. (shrink)

The sense of agency – the subjective feeling of being in control of our own actions – is one central aspect of the phenomenology of action. Computational models provided important contributions toward unveiling the mechanisms underlying the sense of agency in individual action. In particular, the sense of agency is believed to be related to the match between the actual and predicted consequences of our own actions (comparator model). In the study of joint action, models are even more necessary to (...) understand the mechanisms underlying the development of coordination strategies and how the subjective experiences of control emerge during the interaction. In a joint action, we not only need to predict the consequences of our own actions; we also need to predict the actions and intentions of our partner, and to integrate these predictions to infer their joint consequences. Understanding our partner and developing mutually satisfactory coordination strategies are key components of joint action and in the development of the sense of joint agency. Here we discuss a computational architecture which addresses the sense of agency during intentional, real-time joint action. We first reformulate previous accounts of the sense of agency in probabilistic terms, as the combination of prior beliefs about the action goals and constraints, and the likelihood of the predicted movement outcomes. To look at the sense of joint agency, we extend classical computational motor control concepts - optimal estimation and optimal control. Regarding estimation, we argue that in joint action the players not only need to predict the consequences of their own actions, but also need to predict partner’s actions and intentions (a ‘partner model’) and to integrate these predictions to infer their joint consequences. As regards action selection, we use differential game theory – in which actions develop in continuous space and time - to formulate the problem of establishing a stable form of coordination and as a natural extension of optimal control to joint action. The resulting model posits two concurrent observer-controller loops, accounting for ‘joint’ and ‘self’ action control. The two observers quantify the likelihoods of being in control alone or jointly. Combined with prior beliefs, they provide weighing signals which are used to modulate the ‘joint’ and ‘self’ motor commands. We argue that these signals can be interpreted as the subjective sense of joint and self agency. We demonstrate the model predictions by simulating a sensorimotor interactive task where two players are mechanically coupled and are instructed to perform planar movements to reach a shared final target by crossing two differently located intermediate targets. In particular, we explore the relation between self and joint agency and the information available to each player about their partner. The proposed model provides a coherent picture of the inter-relation of prediction, control, and the sense of agency in a broader range of joint actions. (shrink)