Intelligence is not a place, but a process of distribution
In short: We often imagine intelligence as a centralized spark inside a single brain or a lone mind. However, modern science suggests that cognition is actually distributed. From biological slime molds to complex digital networks, intelligence emerges from how information is shared across systems, rather than where it sits.
The concept of distributed cognition challenges the traditional view of the brain as a collection of isolated modules. Instead, researchers are exploring how cognition emerges from wide-reaching networks. In the human brain, for example, there is an ongoing scientific debate regarding the extent to which abstract cognition is localized in specific areas versus being distributed across the entire neural architecture. Evidence suggests that functions like working memory and visual category representation are not confined to single spots but are distributed and overlapping across various regions, such as the ventral temporal cortex and the occipito-temporal cortex.
This distributed nature is seen in how different parts of the brain interact to encode abstract rules and motor plans. For instance, studies on primate brains have shown that single neurons in the prefrontal cortex can encode abstract rules, while the posterior parietal cortex is involved in encoding cognitive sets and autonomously selected motor plans.
These findings suggest that high-level thinking is a collaborative effort between diverse neural structures, where the 'intelligence' lies in the connectivity and the flow of information between these nodes. Beyond biology, the study of distributed cognition expands into non-biological systems. This includes examining how organisms like slime molds solve complex spatial problems or how decentralized systems function. By looking at these diverse examples, scientists are beginning to understand intelligence as a property of systems—whether biological or artificial—that can process, distribute, and integrate information to achieve complex goals. It moves the focus from the 'hardware' of the individual to the 'software' of the network.
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Sources
- Summary by Intellect · source: Distributed Cognition: The New Science of Non-Biological Intelligence
- Also: How distributed is the brain-wide network that is recruited for cognition? - Nature Reviews Neuroscience
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