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      Conciencia y naturaleza: en los límites del fisicalismo Translated title: Consciousness and nature. The limits of physicalism

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          Abstract

          Resumen: Con la esperanza de que los conocimientos en neurociencia ayudasen a comprender al ser humano y a tratar de modo científico sus pérdidas de equilibrio mental, durante los últimos años del siglo XX se dedicaron grandes esfuerzos a la investigación del cerebro, dando lugar a la comúnmente denominada psiquiatría biológica. Sin embargo, debido a los límites y conveniencia de estos conocimientos en su aplicación práctica, junto con las dudas que proporciona la ciencia actual sobre la percepción humana, un número creciente de científicos y filósofos han abierto nuevas líneas de investigación y desarrollado nuevas hipótesis sobre la actividad mental y las relaciones mente-materia que podrían cambiar nuestra comprensión del mundo.

          Translated abstract

          Abstract: In the hope that knowledge in neuroscience helped to understand human beings and treat their losses of mental balance in a scientific way, during the last years of the 20th century great efforts were devoted to brain research, leading to the so-called “biological psychiatry”. However, due to the limits and convenience of this knowledge in its practical application, together with the existing doubts regarding current science about human perception, an increasing number of scientists and philosophers have opened new lines of research and developed new hypotheses about mental activity and mind-matter relationships that might change our understanding of the world.

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          Most cited references52

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          Quantum dynamics of human decision-making

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            Acute corticosterone treatment is sufficient to induce anxiety and amygdaloid dendritic hypertrophy.

            Stress is known to induce dendritic hypertrophy in the basolateral amygdala (BLA) and to enhance anxiety. Stress also leads to secretion of glucocorticoids (GC), and the BLA has a high concentration of glucocorticoid receptors. This raises the possibility that stress-induced elevation in GC secretion might directly affect amygdaloid neurons. To address the possible effects of GC on neurons of amygdala and on anxiety, we used rats treated either acutely with a single dose or chronically with 10 daily doses of high physiological levels of corticosterone (the rat-specific glucocorticoid). Behavior and morphological changes in neurons of BLA were measured 12 days after the initiation of treatment in both groups. A single acute dose of corticosterone was sufficient to induce dendritic hypertrophy in the BLA and heightened anxiety, as measured on an elevated plus maze. Moreover, this form of dendritic hypertrophy after acute treatment was of a magnitude similar to that caused by chronic treatment. Thus, plasticity of BLA neurons is sufficiently sensitive so as to be saturated by a single day of stress. The effects of corticosterone were specific to anxiety, as neither acute nor chronic treatment caused any change in conditioned fear or in general locomotor activity in these animals.
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              Neurophenomenology. Methodological Remedy for the Hard Problem

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                Author and article information

                Journal
                neuropsiq
                Revista de la Asociación Española de Neuropsiquiatría
                Rev. Asoc. Esp. Neuropsiq.
                Asociación Española de Neuropsiquiatría (Madrid, Madrid, Spain )
                0211-5735
                2340-2733
                June 2020
                : 40
                : 137
                : 73-91
                Affiliations
                [1] Madrid orgnameUniversidad Nacional de Educación a Distancia (UNED) España
                Article
                S0211-57352020000100005 S0211-5735(20)04013700005
                10.4321/s0211-57352020000100005
                8629e215-15b6-41b8-b809-784feb80d316

                This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 International License.

                History
                : 24 June 2019
                : 15 January 2020
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 53, Pages: 19
                Product

                SciELO Spain

                Categories
                Artículos

                objectivity,matter,mind,consciousness,mente,conciencia,subjectivity,objetividad,materia,subjetividad

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