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Sunday, November 16, 2008

DEFAULT BRAIN


Naively writers of New Scientist (last number), defined certain brain functions as secret life of the brain, based on 2 questions: 1) finding of excessive brain OEF (oxygen extraction fraction), due to highly organized and hidden tasks during periods of apparent brain rest (Louis Sokoloff (U Penssilvania) and 2) no increase in energy while the brain is subjected to stressful tasks. According to Marcus Raichle (Washington University) during periods of apparent rest, the brain performs reassessments of past actions in order to plan future actions. We say naive because for us this action is linked to sophisticated and extended brain processes linked to the instinct of preservation. Almost the same goal as out-of-body experiences, in which facing a threat (imminent death or highly stressful situations), supervisory body controls emerge for a few seconds, to continue to have a a totalizing body vision (outside of body), because the threat body does not give them the necessary guarantees for continuous monitoring.
AREAS CEREBRALES (ocultas), ACTIVAS.

Ingenuamente redactores de New Scientist, tipifican en su últmo número ciertas funciones cerebrales como: secret life of the brain, basados en 2 interrogantes : 1) Constatacion de excesivo OEF (oxygen extraction fraction) cerebral, derivado a tareas altamente organizadas y ocultas, durante periodos de aparente reposo cerebral ( Louis Sokoloff (U Penssilvania) 2) ausencia de incremento de energia mientras el cerebro es sometido a tareas estresantes. Segun Marcus Raichle (Washington University), durante estos periodos de aparente descanso el cerebro realiza reevaluaciones de acciones pasadas para planear acciones futuras. Decimos ingenuos porque esta accion cerebral esta ligada a sofisticados procesos ligados al instinto de conservacion. Casi el mismo objetivo que experiencias fuera del cuerpo (out of body), en las que frente a una amenza (muerte inminente o situaciones altamente estresantes), los mecanismos de control corporal salen del cuerpo por unos cuantos segundos, para continuar teniendo una vision totalizadora de un cuerpo que no les da las garantias necesarias para monitorizarlo.

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1 Comments:

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12:03 PM  

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