Dissipation and Memory Capacity in the Quantum Brain Model

Vitiello, Giuseppe

doi:10.1142/s0217979295000380

Cited by 182 publications

(372 citation statements)

References 16 publications

(60 reference statements)

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“…Interesting photonic, dielectric, and phonon phenomena are expected from molecular compasses arrays (13). These include addressable ferroelectric and antiferroelectric phases, polar rotary phonons that propagate at velocities slower than the typical speed of sound, and NambuGoldstone dipole-wave quanta, which have been suggested as potential carriers of ordering information in quantum models of the brain (24).…”

Section: Molecular Gyroscopes and Compassesmentioning

confidence: 99%

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Crystalline Molecular Machines: Encoding Supramolecular Dynamics into Molecular Structure

Garcia‐Garibay

2005

ChemInform

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Crystalline molecular machines represent an exciting new branch of crystal engineering and materials science with important implications to nanotechnology. Crystalline molecular machines are crystals built with molecules that are structurally programmed to respond collectively to mechanic, electric, magnetic, or photonic stimuli to fulfill specific functions. One of the main challenges in their construction derives from the picometric precision required for their mechanic operation within the close-packed, self-assembled environment of crystalline solids. In this article, we outline some of the general guidelines for their design and apply them for the construction of molecular crystals with units intended to emulate macroscopic gyroscopes and compasses. Recent advances in the preparation, crystallization, and dynamic characterization of these interesting systems offer a foothold to the possibilities and help highlight some avenues for future experimentation.crystal engineering ͉ molecular gyroscopes ͉ crystal dynamics ͉ molecular rotors T he design and construction of artificial mechanomolecular machines is one of the most interesting scientific challenges of our times (1, 2), and a deeper understanding of structure-property relations in several biological motors (3, 4) have led to considerable insights in the past few years. However, the formulation, design, and materialization of truly serviceable artificial molecular machines remains a major challenge. Whereas initial efforts have been centered on isolated molecules randomly tumbling in solution, most biomolecular systems and macroscopic machines are complex, multiple-component, densely packed assemblies, supported on membranes or within the bulk of larger structures.In this Perspective, I will describe our group's recent efforts on a quest to control the structure and dynamics of closed-packed molecular assemblies. Our thesis is based on the premise that information contained at the molecular level in the form of topology, size, shape, nonbonding interactions, electronic structure, etc. will dictate the aggregation, dynamics, actuation possibilities, and mechanical functions. One of our initial goals is to uncover the relation between supramolecular structure and intermolecular dynamics by taking advantage of dynamic stereochemistry, self-assembly, and crystal engineering. To document this relation with as high precision and certainty as possible, we have chosen the crystalline solid state as a promising model. Structural characterizations can be carried out by singlecrystal x-ray diffraction measurements, and dynamic properties can be determined over a wide range of time scales by techniques that include variabletemperature solid-state NMR, dielectric spectroscopy, and inelastic neutron scattering, among several others. From Molecular Structure Information to Self-Assembly and DynamicsA machine is defined as ''an assemblage of parts that transmits forces, motion, or energy from one to another in a predetermined manner'' (5). Not explicit in the dictionary'...

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Section: Molecular Gyroscopes and Compassesmentioning

confidence: 99%

“…Our synthetic studies started a few years ago with the preparation of molecular gyroscopes with a phenylene rotator, and either triptycyl (1) (11,24) or triphenylmethyl (2) groups as stators (Fig. 4).…”

Section: Synthesis and Solid-state Characterizationmentioning

confidence: 99%

Crystalline Molecular Machines: Encoding Supramolecular Dynamics into Molecular Structure

Garcia‐Garibay

2005

ChemInform

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“…The ontological significance of the proposal lies in the primacy of duality, a new conception of duality sharply distinguished from the classical dualism. Here the duality is that of a system in which brain is opened to external world (process of dissipation) [48] [87]. The ontological bonus of this new duality is its between: ground is between-two.…”

Section: Intentionality In the Neuroquantology Of Vitiellomentioning

confidence: 99%

New Issue to Modeling Intentionality in the Field of Consciousness

Blanquet¹

2015

JBBS

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Brentano in 1870s was the first to introduce intentionality to mean "conscious of". At the end of the 1960s, a version of this view was developed by analytic American philosophy to construct a theory of meaningful language. That led Dennett to claim that intentionality was mainly a feature of sentence, not mental states. In contrast, Searle in 1990s rejected the Brentanian thesis and explained intentionality by a biological naturalism. Thereafter, radical eliminativists such as Churchland claimed that all philosophical arguments merited replacement by neuroscientific knowledge. Unfortunately, very few neurophysiological studies attempted to scientifically tackle the problem raised by intentionality. The issue now emerging is a new conception of intentionality based on phenomenological, neurobiological and quantum theories, such as: 1) the notion of "intentional arc" proposed in the philosophy of Merleau-Ponty; 2) the neurobiological and quantum model of Freeman, in which self-organizing pathways are accompanied by quantum transitions in controlling intentionality in brain; 3) the recent hypothesis that some visuo-motor neurons would be involved in controlling these self-organized pathways; 4) the quantum models of Vitiello and Globus, in which a thermofield (dissipative) system governs the dynamic dialog of dual quantum modes between environment and brain. Based on this conception of mind-world interactions, it implicitly appears that intentionality might be a fundamental force which draws us irreversibly towards the future. An alternative hypothesis based on this promising proposal is argued.

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“…The formulation of quantum brain functioning offered by Vitiello (2006a, 2006b) is primarily based in the early quantum field theoretical proposals of Ricciardi and Umezawa (1967) (Vitiello 1995(Vitiello , 2001). Vitiello (2001Vitiello ( , 2003Vitiello ( , 2004 has suggested a quantum theory of intentionality based in thermofield dynamics (Vitiello 1995 there is an infinite memory for symmetry-breaking input available without overprinting (Vitiello 1995).…”

Section: Intentionality In Vitiello Thermofield Dynamicsmentioning

confidence: 99%