The Cognitive Role of Frequency in Flies

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I met Bruno Van Swindren, a fly researcher in Australia, who studies the relationship between brain rhythms and cognitive processes. Flies show an association between selective attention and brain rhythms, suggesting a cognitive role for these oscillations. This changed my view of a nervous system as more than just a network of cells, but as a combination of point-to-point interactions and integrated biological processes.

The study of cognition and sentience would be greatly abetted by the discovery of intelligent alien beings, who presumably developed independently of life here on Earth. But we do have more than one data point to consider: certain vertebrates (including humans) are quite intelligent, but so are certain cephalopods (including octopuses), even though the last common ancestor of the two groups was a simple organism hundreds of millions of years ago that didn't have much of a nervous system at all. Peter Godfrey-Smith has put a great amount of effort into trying to figure out what we can learn about the nature of thinking by studying how it is done in these animals with very different brains and nervous systems.

Blog post with transcript: https://www.preposterousuniverse.com/podcast/2023/09/11/249-peter-godfrey-smith-on-sentience-and-octopus-minds/

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Peter Godfrey-Smith received his Ph.D. in philosophy from the University of California, San Diego. He is currently professor in the School of History and Philosophy of Science at the University of Sydney. Among his books are Other Minds: The Octopus, the Sea, and the Deep Origins of Consciousness and Metazoa: Animal Life and the Birth of the Mind.

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