The architecture of brain, consciousness, and behavioral processes is shown to be formally similar in that all three may be conceived and depicted as Petri net patterned processes structured by a series of elements occurring or becoming active in stochastic succession, in parallel, with different rhythms of temporal iteration, and with a distinct qualitative manifestation in the spatiotemporal domain. A patterned process theory is derived from the isomorphic features of the models and contrasted with connectionist, dynamic system notions. This empirically (...) derived formulation is considered to be optimally compatible with the dual aspect theory in that the foundation of the diverse aspects would be a highly structured and dynamic process, the psychophysical neutral “ground” of mind and matter posed (but not properly determined) by dual aspect and neutral monist theories. It is methodologically sound to approach each one of these processes with specific tools and to establish concurrences in real time between them at the organismic level of analysis. Such intra‐level and inter‐perspective correlations could eventually constitute psychophysical bridge‐laws. A mature psychology of consciousness is necessary to situate and verify the bridges required by a genuine mind‐body science. (shrink)

Robust theories concerning the connection between consciousness and brain function should derive not only from empirical evidence but also from a well grounded inind-body ontology. In the case of the comparator hypothesis, Gray develops his ideas relying extensively on empirical evidence, but he bounces irresolutely among logically incompatible metaphysical theses which, in turn, leads him to excessively skeptical conclusions concerning the naturalization of consciousness.

Botanical preparations used by shamans in rituals for divination, prophecy, and ecstasy contain widely different psychoactive compounds, which are incorrectly classified under a single denomination such as “hallucinogens,” “psychedelics,” or “entheogens.” Based on extensive ethnopharmacological search, I proposed a psychopharmacological classification of magic plants in 1979. This paper re-evaluates this taxonomy in the context of consciousness research. Several groups of psychodysleptic magic plants are proposed: (1) hallucinogens—psilocybin mushrooms, mescaline cacti, dimethyltryptamine snuffs, and the synthetic ergoline lysergic acid diethylamide induce strong (...) perceptual changes, affective intensification, and cognitive enhancement. Their ethnobotanical uses include long lasting divination rituals, prophecy, and sacramental practice. (2) Trance-inducers—ergoline Convolvulaceae and South American Banisteriopsis produce quietness, abstraction, lethargy, mild sensorial and cognitive changes, and salient visual imagery changes used in trance rituals and specific divination practices. (3) Cognodysleptics—marijuana (tetrahydrocannabinol) and other terpene-containing plants induce changes in thought, imagination, and affective functions and are used in short-term divination or oneiromancy. (4) Deliriants—tropane-containing Solanaceae, wild tobacco, and Amanita muscaria (muscimol) induce a delirium characterized by dim and clouded consciousness, stupor, confusion, disorientation, perception distortion, difficulties in recollection, anxiety, irritability, excitation, and behavioral disorganization employed in sorcery, purification, or exorcism rituals. The core mental effects required for a drug to be used in shamanistic rituals include light-headedness, enhanced imagery, and experience intensification. This constellation was the reason why, in his classification of psychoactive compounds, the pioneer German psychopharmacologist Louis Lewin established in 1924 a group of drugs under the appropriate name of Phantastica. (shrink)

La investigación tiene como objetivo mostrar las características de las mujeres jóvenes indígenas chiapanecas que llevan a cabo un desplazamiento migratorio laboral a diversas zonas del estado y al interior de la república mexicana para emplearse como trabajaras domésticas, a través de entrevistas a profundidad porque permiten contextualizar los distintos escenarios y reconstruir sus historias de vida. Migrar constituye una acción voluntaria con implicaciones en el proyecto de vida.

El objetivo del presente trabajo es presentar los primeros pasos de una reconstrucción estructuralista de la teoría alostérica MWC. Esta teoría fue presentada en dos artículos publicados en Journal of Molecular Biology, en el primero de ellos “Allosteric proteins and cellular control systems”, de 1963, una versión simplificada, y en el segundo, “On the nature of allosteric transitions: a plausible model”, publicado en la misma revista en 1965, una versión más acabada. En estos trabajos, el ganador del premio Nobel en (...) Fisiología, Jacques Monod, introduce por primera vez un nuevo concepto que revolucionará la bioquímica y biología de la época: el alosterismo. (shrink)

Ha sido mi interés en los últimos años reflexionar formalmente sobre la conciencia en referencia a sus fundamentos y aspectos biológicos, en especial los cerebrales y los de comportamiento. Urdiendo sobre sus aspectos fisiológicos, fenomenológicos, epistemológicos y ontológicos, he explorado la naturaleza del dolor como un estado paradigmático de conciencia en un cuento de “neurociencia ficción” (Díaz, 2002), en un trabajo publicado en Salud Mental (Díaz, 2007) y en un libro sobre la conciencia viviente (Díaz, 2007). Estos análisis utilizan al (...) dolor como un fenómeno de conciencia fértil para examinar las principales conjeturas vigentes sobre la relación mente cuerpo y el problema epistemológico del acceso científico a la conciencia. La presente comunicación es un breve repaso de las principales ideas exploradas que se especifican en un decálogo de afirmaciones sobre la naturaleza y el conocimiento del dolor. Medical Epistemology: Ten Postulates on Pain It has been my interest in recent years to formally reflect on consciousness’s biological aspects and foundations, especially the brain-related and behavioral ones. In dwelling on its physiological, phenomenological, epistemological and ontological aspects, I have explored the nature of pain as a paradigmatic state of consciousness in a “neuroscience-fiction” tale (Díaz, 2002), in a work published in Mental Health (Díaz, 2007), and in a book on living consciousness (Díaz, 2007). These analyses use pain as a fertile consciousness phenomenon in order to examine the main current conjectures on the mind-body relation and the epistemological problem of scientific access to consciousness. This work is a brief summary of the main ideas explored, specified as a Decalogue of statements on the nature and knowledge of pain. (shrink)

Dual aspect theory has conceptual advantages over alternative mind-body notions, but difficulties of its own. The nature of the underlying psychophysical ground, for one, remains problematic either in terms of the principle of complementarity or if mind and matter are taken to be aspects of something like energy, movement, or information. Moreover, for a dual aspect theory to be plausible it should avoid the four perils of all mind-body theories: epiphenomenalism, reductionism, gross panpsychism, and the problems of emergence. An alternative (...) dual aspect theory, patterned process theory, is introduced and defended in neurological and individuality terms. The concept is grounded in a brain model of hierarchies wherein consciousness is conceived to be a cognitive aspect of the highest emergent brain inter-module activity, which is situated in the context of a living organism coping with a changing environment. The notion of individuals as psychophysical units unfolding as patterned processes is shown to constitute an integrative approach to brain, consciousness, and behavior that can avoid the conceptual perils and meet the ontological requirements of dual aspect reality and thereby advance the foundations of an integrative mind-body science. (shrink)

Scientific-technological innovation (particularly in the field of transgenic foods and cloning), scientific journalism and public opinion all share a complex relationship. The rupture of internal consensus among the scientific community, the role played by scientific journalists as "mediators" and the differentiation between what can be referred to as the "informed public" or "epistemological leaders" and the rest of the population were the starting point for our research on the impact of news related to biotechnological advances. In this paper we will (...) show the principal characteristics of the discourse on this type of news among what we can call the "informed public". From there, we will establish a set of strategies for improving the level of scientific-technological alphabetisation in our complex societies. (shrink)