Attention Schema Theory

The Attention Schema Theory (AST) is a proposed explanation for how people claim to have a subjective consciousness. It proposes that three different phenomena – the control of attention, some aspects of social cognition, and the claim of subjective consciousness – are linked by one mechanism. First, in the theory, attention – the manner in which processing resources are selectively focused – is controlled partly with the help of an internal model of attention. That model is a representation, or a rich set of information, about attention itself. It includes information about the current state of attention and predictive information. Just as the brain constructs an arm schema to describe, predict, and thus help control the arm as it reaches toward objects, so the brain constructs an attention schema to describe, predict, and thus help control attention as it is directed toward items. In that analogy, endogenous or internally directed attention is like the motor system controlling the ar...