In this paper we argue that object perception may be affected by what we call “perceptual frames.” Perceptual frames are adaptations of the perceptual system that guide how perceptual objects are singled out from a sensory environment. These adaptations are caused by perceptual learning and realized through bottom-up functional processes such that sensory information is organized in a subject-dependent way leading to idiosyncratic perceptual object representations. Through domain-specific training, perceptual learning, and the acquisition of object-knowledge, it is possible to modulate (...) the adaptive perceptual system such that its ability to represent becomes bespoke. Different perceivers with different perceptual frames may, therefore, receive the same sensory information and perceive different perceptual objects due to the effects of framing. Consequently, we demonstrate the plausibility of this account by surveying empirical data concerning the functions of (1) multisensory integration, (2) amodal completion, and (3) predictive anticipation. Regarding (1), we argue that the perceptual system’s optimization processes employ perceptual frames to facilitate multisensory feature binding. Regarding (2), we argue that amodal completion can occur with or without the help of mental imagery, yet either instance of amodal completion requires perceptual frames. Regarding (3), we demonstrate that perceptually anticipating an object’s motion involves the implementation of perceptual frames. We conclude that framing effects are a matter of perceptual diversity and highlight the need to accommodate unique perspectives in the philosophy and science of perception. (shrink)

Sometimes, we act in concert with others, as when we go for a walk together, or when two mathematicians try to prove a difficult theorem with each other. An interesting question is what distinguishes the actions of individuals that together constitute some joint activity from those that amount to a mere aggregation of individual behaviours. It is common for philosophers to appeal to collective intentionality to explain such instances of shared agency. This framework generalizes the approach traditionally used to explain (...) individual action: a behaviour is an action just in case it causally follows from the relevant intention. Contemporary philosophers of action, as well as cognitive psychologists, however, have criticised this way of explaining individual actions, favouring instead an approach that puts “control” or “guidance” as the discerning factor: a behaviour is an action just in case the agent controls it, or just in case it is guided by the agent. In this paper, I argue that we should include talk of guidance even in cases of joint action. I first show that problems of deviant causation arise also in cases of joint action, and that therefore guidance is required to face this issue. Then, I show what a “capacity to guide” amounts to for a group and how joint guidance relates to individual guidance. Joint guidance is actually constituted by task co-representation and the sense of commitment. I argue that an approach that favours joint guidance over collective intentions eschews a lot of metaphysical problems about collective mentality and group subjects, and it is thus more explanatorily fruitful. (shrink)