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Chetan Prakash

4 papers in the library · publishing 2014-2023

Papers

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Fusions of Consciousness.

Entropy (Basel, Switzerland) January 9, 2023 Donald D Hoffman, Chetan Prakash, Robert Prentner

What are conscious experiences? Can they combine to form new experiences? What are conscious subjects? Can they combine to form new subjects? Most attempts to answer these questions assume that spacetime, and some of its particles, are fundamental. However, physicists tell us that spacetime cannot be fundamental. Spacetime, they say, is doomed. We heed the physicists, and drop the assumption...

DOI: 10.3390/e25010129 (opens in new tab) Full text (opens in new tab) Markov chains Markov polytopes Amplituhedron Combination problem +8

Fact, Fiction, and Fitness.

Entropy (Basel, Switzerland) April 30, 2020 Chetan Prakash, Chris Fields, Donald D Hoffman et al.

A theory of consciousness, whatever else it may do, must address the structure of experience. Our perceptual experiences are richly structured. Simply seeing a red apple, swaying between green leaves on a stout tree, involves symmetries, geometries, orders, topologies, and algebras of events. Are these structures also present in the world, fully independent of their observation? Perceptual...

DOI: 10.3390/e22050514 (opens in new tab) Full text (opens in new tab) Bayesian decision theory Evolutionary game theory Evolutionary psychology Fitness +3

Probing the interface theory of perception: Reply to commentaries.

Psychonomic Bulletin & Review December 1, 2015 Donald D Hoffman, Manish Singh, Chetan Prakash

We propose that selection favors nonveridical perceptions that are tuned to fitness. Current textbooks assert, to the contrary, that perception is useful because, in the normal case, it is veridical. Intuition, both lay and expert, clearly sides with the textbooks. We thus expected that some commentators would reject our proposal and provide counterarguments that could stimulate a productive...

DOI: 10.3758/s13423-015-0931-3 (opens in new tab) Full text (opens in new tab) Bayesian inference Categorization Parameter estimation Visual perception

Objects of consciousness.

Frontiers in Psychology June 17, 2014 Donald D Hoffman, Chetan Prakash

Current models of visual perception typically assume that human vision estimates true properties of physical objects, properties that exist even if unperceived. However, recent studies of perceptual evolution, using evolutionary games and genetic algorithms, reveal that natural selection often drives true perceptions to extinction when they compete with perceptions tuned to fitness rather than...

DOI: 10.3389/fpsyg.2014.00577 (opens in new tab) Full text (opens in new tab) Quantum theory Consciousness Markov chains Geometric algebra +1