Beggs john m (27 risultati)

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Paperback. Condizione: new. Paperback. How the cerebral cortex operates near a critical phase transition point for optimum performance.How the cerebral cortex operates near a critical phase transition point for optimum performance.Individual neurons have limited computational powers, but when they work together, it is almost like magic. Firing synchronously and then breaking off to improvise by themselves, they can be paradoxically both independent and interdependent. This happens near the critical point: when neurons are poised between a phase where activity is damped and a phase where it is amplified, where information processing is optimized, and complex emergent activity patterns arise. The claim that neurons in the cortex work best when they operate near the critical point is known as the criticality hypothesis. In this book John Beggs-one of the pioneers of this hypothesis-offers an introduction to the critical point and its relevance to the brain.Drawing on recent experimental evidence, Beggs first explains the main ideas underlying the criticality hypotheses and emergent phenomena. He then discusses the critical point and its two main consequences-first, scale-free properties that confer optimum information processing; and second, universality, or the idea that complex emergent phenomena, like that seen near the critical point, can be explained by relatively simple models that are applicable across species and scale. Finally, Beggs considers future directions for the field, including research on homeostatic regulation, quasicriticality, and the expansion of the cortex and intelligence. An appendix provides technical material; many chapters include exercises that use freely available code and data sets. "A survey of the criticality hypothesis which imports theory from physics to understand the brain and could be a grand unifying theory of the brain at a time when neuroscience is dominated by data"-- Shipping may be from multiple locations in the US or from the UK, depending on stock availability.…

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Paperback. Condizione: new. Paperback. How the cerebral cortex operates near a critical phase transition point for optimum performance.How the cerebral cortex operates near a critical phase transition point for optimum performance.Individual neurons have limited computational powers, but when they work together, it is almost like magic. Firing synchronously and then breaking off to improvise by themselves, they can be paradoxically both independent and interdependent. This happens near the critical point- when neurons are poised between a phase where activity is damped and a phase where it is amplified, where information processing is optimized, and complex emergent activity patterns arise. The claim that neurons in the cortex work best when they operate near the critical point is known as the criticality hypothesis. In this book John Beggs-one of the pioneers of this hypothesis-offers an introduction to the critical point and its relevance to the brain.Drawing on recent experimental evidence, Beggs first explains the main ideas underlying the criticality hypotheses and emergent phenomena. He then discusses the critical point and its two main consequences-first, scale-free properties that confer optimum information processing; and second, universality, or the idea that complex emergent phenomena, like that seen near the critical point, can be explained by relatively simple models that are applicable across species and scale. Finally, Beggs considers future directions for the field, including research on homeostatic regulation, quasicriticality, and the expansion of the cortex and intelligence. An appendix provides technical material; many chapters include exercises that use freely available code and data sets. "A survey of the criticality hypothesis which imports theory from physics to understand the brain and could be a grand unifying theory of the brain at a time when neuroscience is dominated by data"-- Shipping may be from our Sydney, NSW warehouse or from our UK or US warehouse, depending on stock availability.…

Taschenbuch. Condizione: Neu. Neuware - How the cerebral cortex operates near a critical phase transition point for optimum performance.Individual neurons have limited computational powers, but when they work together, it is almost like magic. Firing synchronously and then breaking off to improvise by themselves, they can be paradoxically both independent and interdependent. This happens near the critical point: when neurons are poised between a phase where activity is damped and a phase where it is amplified, where information processing is optimized, and complex emergent activity patterns arise. The claim that neurons in the cortex work best when they operate near the critical point is known as the criticality hypothesis. In this book John Beggsone of the pioneers of this hypothesisoffers an introduction to the critical point and its relevance to the brain.Drawing on recent experimental evidence, Beggs first explains the main ideas underlying the criticality hypotheses and emergent phenomena. He then discusses the critical point and its two main consequencesfirst, scale-free properties that confer optimum information processing; and second, universality, or the idea that complex emergent phenomena, like that seen near the critical point, can be explained by relatively simple models that are applicable across species and scale. Finally, Beggs considers future directions for the field, including research on homeostatic regulation, quasicriticality, and the expansion of the cortex and intelligence. An appendix provides technical material; many chapters include exercises that use freely available code and data sets.…

Paperback. Condizione: New.

Taschenbuch. Condizione: Neu. The Cortex and the Critical Point | Understanding the Power of Emergence | John M. Beggs | Taschenbuch | Einband - flex.(Paperback) | Englisch | 2022 | MIT Press Ltd | EAN 9780262544030 | Verantwortliche Person für die EU: Libri GmbH, Europaallee 1, 36244 Bad Hersfeld, gpsr[at]libri[dot]de | Anbieter: preigu. …

Paper. Condizione: Fine. First Edition. Unique postal cover celebrating President Reagan's January 25, 1984 announcement of the permanent manned Space Station program. The postal cover is boldly SIGNED by NASA Administrator Beggs, Deputy Administratot Mark, Associate Administrator for Space Flight Abrahamson, and Space Station Task Force Director Hodge. It is postmarked January 24, 1984 at the Smithsonian Station Post Office. This is a unique cover, without a cartouche and with the signatures written above the typed (not printed) name and office of each. Laid in is an original green NASA routing slip requesting the signatures. Provenance: from the collection of Lee Saegesser, Chief Archivist from 1967 until 1997 in the Washington, DC NASA Headquarters History Office. Certificate of Authenticity available if desired. The autographs are bright and unfaded; the postal cover is clean and bright. Size: 3 5/8" by 6 1/2". SIGNED. Manuscript.…