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Parker's Pensées
Ep. 234 - We Are All Just Conscious Turing Machines w/Dr. Lenore Blum
Jun 9, 2023
Dr. Lenore Blum, mathematician, discusses the recent petition for AI researchers to study consciousness. They explore the Conscious Turing Machine model, pain and empathy in robots, information processing in the theater of consciousness, tacit knowledge in infants, and the limitations of AI and computational theories of mind.
01:34:31
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Quick takeaways
- The Conscious Turing Machine (CTM) model explains consciousness through a global workspace and chunk-based information processing.
- The CTM model is influenced by Bar's theater model of consciousness, mimicking communication among processors without the need for an executive director.
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The Conscious Turing Machine Model
In the Conscious Turing Machine (CTM) model, conscious awareness is explained through the concept of a global workspace. Long-term memory processors, which represent unconscious processes, compete to get their information into short-term memory, which is then broadcasted to the entire system. The model incorporates the idea of chunk-based information processing, where small amounts of information (chunks) are weighted and put into competition for short-term memory. Link formation between processors transforms conscious processing into unconscious processing. The model also includes specialized processors for inner speech, inner vision, inner sensation, and the model of the world. The model of the world processor creates models of the external and internal world using predictions, feedback, and learning. The learning process involves adjusting weights based on feedback from the sleeping experts algorithm. The CTM model provides explanations for phenomena such as blind sight and can be applied to AGI systems.
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