Attention Schema Theory of Consciousness
- Consciousness
- Rethinking Consciousness - Michael Graziano - Related Book
The Attention Schema Theory (AST) of consciousness proposes that subjective awareness is an internal, simplified brain model of its own attentional processes. Developed by Princeton neuroscientist Michael Graziano, the theory explains consciousness through a physical and mechanical framework rather than a non-physical essence. 1, 2, 3, 4
Core Concepts
The Body Schema Analogy: Just as the brain builds a simplified spatial model of the physical body to monitor and coordinate movement, it builds an “attention schema” to track and regulate its focus. 1, 2
Control Mechanism: Attention manages competing signals for the brain’s limited computing resources. A schematic model of this focus improves top-down control and regulatory efficiency. 1, 2
The Illusion of a Magical Essence: Because the internal model is simplified and incomplete, the brain cannot “see” the exact complex neuronal wiring of attention; instead, it interprets the data as a ghostly, non-physical, or magical awareness of holding items in the mind. 1, 2
Functions and Implications
Social Cognition: By modeling its own attention, the brain can easily compute and attribute awareness to other people, serving as the biological foundation for a “theory of mind”. 1, 2
Artificial Intelligence: AST offers a functional blueprint for engineering artificial consciousness by giving machines an internal schematic model to monitor processing resources and “claim” awareness. 1, 2