# Global Workspace Theory
Global Workspace Theory (GWT), proposed by [[Bernard Baars]] (1988), explains consciousness as a "global broadcast" system. The brain has many specialized, unconscious processors; consciousness arises when information is broadcast to a global workspace, making it available to multiple systems (memory, language, motor planning) simultaneously. Think of consciousness as a theater spotlight illuminating one thing at a time for the whole audience.
Stanislas Dehaene extended GWT into Global Neuronal Workspace Theory, identifying the prefrontal-parietal network as the neural correlate of the global workspace. The theory explains attention, working memory, and why we can only be conscious of one thing at a time. It's one of the leading scientific theories of consciousness, alongside Integrated Information Theory.
## Core Mechanism
| Unconscious | Conscious |
|-------------|-----------|
| Specialized processors | Global broadcast |
| Parallel, distributed | Serial, unified |
| Not accessible | Available to all systems |
## References
- Baars, Bernard. *A Cognitive Theory of Consciousness* (1988)
- Dehaene, Stanislas. *Consciousness and the Brain* (2014)
## Related
- [[Consciousness]]
- [[Attention]]
- [[Working Memory]]
- [[Cognitive Science]]