Certain creatures represent their own system states; they have self-representations. But what are the boundaries of these systems? Or, more precisely, what object's properties determine whether a self-representation is accurate? Many accounts simply assume that the relevant boundary is the body or some part of it (e.g. Hohwy and Michael, Mackenzie, Newen). Others mostly disregard the importance of this question, often because they view the self as abstract or fictional (e.g. Dennett, Metzinger, …
Read moreCertain creatures represent their own system states; they have self-representations. But what are the boundaries of these systems? Or, more precisely, what object's properties determine whether a self-representation is accurate? Many accounts simply assume that the relevant boundary is the body or some part of it (e.g. Hohwy and Michael, Mackenzie, Newen). Others mostly disregard the importance of this question, often because they view the self as abstract or fictional (e.g. Dennett, Metzinger, Velleman). And while some others argue that the relevant boundaries are negotiable, such accounts are at best piecemeal, focusing either on mental states (e.g. Clark, Chalmers) or moral traits (e.g. Alfano, Skorburg, Howell). This thesis develops an account of self-representation that is general (it covers both categorical and dispositional properties of the self), shows how self-models are used in embodied cognition, and explains when we *accurately* self-represent properties without assuming that those properties are, or supervene on, any specific object's properties.
I begin the thesis by investigating the structure of our self-representations. I argue that systems with certain capacities need to self-represent by combining a model of the objective world with a token indicating the system's current state (the self-as-subject). The relational properties of the self-as-subject represent the system's states. This is akin to the blue dot on your mobile phone's navigation app indicating your current location. A fully relational account of self-representation (which I develop based on Ismael's work) has the added advantage of linking the notions of self-as-subject and self-as-object, which are often treated as independent constructs in the literature.
I differ from Ismael in that while she assumes that correct self-as-subject location can be determined by the location of the body, I develop an account in which the self-as-subject is accurately positioned in the self-model when conditionals about the consequences of the cognitive system's output come out true. I thereby extend what for Ismael is mainly an account of how we represent our position in space to an account of a wide variety of self-attributed categorical properties.
To determine whether an object exemplifies a disposition, we often evaluate what state transition the object undergoes in relevant possible worlds. For example, does the glass break in the possible worlds where it is struck? When it comes to self-attributed dispositions, we can ask: what possible worlds are close enough to determine whether someone exemplifies a disposition? For me to be a morning person, does it matter whether I wake up early in a possible world where alarm clocks haven't been invented? Where I've had a major brain surgery? Where my partner doesn't prepare coffee for me? I argue that convention has a role to play in determining the set of relevant possible worlds and that the constraints on these worlds are such that our self-attributed dispositions supervene on properties external to brain or body. Our self-attributed dispositions, if not we ourselves, can be, and often are, extended.