Perceived Reality, Quantum Mechanics, and Consciousness
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01. Pre-Socratic Cosmology and Plato I. Basic Issues (1) Metaphysical (A) What Do Things Consist Of? • One Substance (Monism) Socrates ("SOH-Kra-Teez") Died: 399 B.C
01. Pre-Socratic Cosmology and Plato I. Basic Issues (1) Metaphysical (a) What do things consist of? • one substance (monism) Socrates ("SOH-kra-teez") Died: 399 B.C. • many substances (pluralism) Problem of the One and the Many - How is diversity derived from unity? - How is unity derived from diversity? (b) What is the nature of change? (2) Epistemological (a) What is the nature of knowledge? (b) How is knowledge obtained? Three questions to keep in mind: 1. What counts as a "scientific" explanation of a phenomenon? • An account of the causes of the phenomenon? • An account that places the phenomenon within a larger explanatory framework? • An account of the phenomenon that indicates how it follows from basic laws of nature? 2. What counts as "scientific" knowledge? • Knowledge of causes, natural laws, and/or general physical principles? • Knowledge based on observation and inductive inference? • Knowledge that makes no appeal to supernatural causes? 3. What distinguishes a natural explanation from a supernatural explanation? • testability? • reliability? • accuracy? • repeatability? II. Pre-Socratics (~6th - 5th cent. B.C.) 1. Milesians and Monism (Thales, Anaximander, Anaximenes) Thales ("THAY-leez") ~585 B.C. • The Earth rests on water. • Water is the archê (source) of all things. • All things are full of gods. • The magnet has a soul. Anaximander ("Ah-NAX-ee-mander") ~550 B.C. • Monism based on "apeiron". • "apeiron" = the infinite/indeterminate/unlimited. • lacking in qualities (boundedness, determinateness, limits, etc). Possible motivation • Observable phenomena are constituted from earth, air, fire, water. • But the elements are opposed to each other. • Thus, there must be some basic neutral substratum devoid of qualities out of which everything, including the elements, is constituted. -
Theoretical Models of Consciousness: a Scoping Review
brain sciences Review Theoretical Models of Consciousness: A Scoping Review Davide Sattin 1,2,*, Francesca Giulia Magnani 1, Laura Bartesaghi 1, Milena Caputo 1, Andrea Veronica Fittipaldo 3, Martina Cacciatore 1, Mario Picozzi 4 and Matilde Leonardi 1 1 Neurology, Public Health, Disability Unit—Scientific Department, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20133 Milan, Italy; [email protected] (F.G.M.); [email protected] (L.B.); [email protected] (M.C.); [email protected] (M.C.); [email protected] (M.L.) 2 Experimental Medicine and Medical Humanities-PhD Program, Biotechnology and Life Sciences Department and Center for Clinical Ethics, Insubria University, 21100 Varese, Italy 3 Oncology Department, Mario Negri Institute for Pharmacological Research IRCCS, 20156 Milan, Italy; veronicaandrea.fi[email protected] 4 Center for Clinical Ethics, Biotechnology and Life Sciences Department, Insubria University, 21100 Varese, Italy; [email protected] * Correspondence: [email protected]; Tel.: +39-02-2394-2709 Abstract: The amount of knowledge on human consciousness has created a multitude of viewpoints and it is difficult to compare and synthesize all the recent scientific perspectives. Indeed, there are many definitions of consciousness and multiple approaches to study the neural correlates of consciousness (NCC). Therefore, the main aim of this article is to collect data on the various theories of consciousness published between 2007–2017 and to synthesize them to provide a general overview of this topic. To describe each theory, we developed a thematic grid called the dimensional model, which qualitatively and quantitatively analyzes how each article, related to one specific theory, debates/analyzes a specific issue. -
Arxiv:1511.01069V1 [Quant-Ph]
To appear in Contemporary Physics Copenhagen Quantum Mechanics Timothy J. Hollowood Department of Physics, Swansea University, Swansea SA2 8PP, U.K. (September 2015) In our quantum mechanics courses, measurement is usually taught in passing, as an ad-hoc procedure involving the ugly collapse of the wave function. No wonder we search for more satisfying alternatives to the Copenhagen interpretation. But this overlooks the fact that the approach fits very well with modern measurement theory with its notions of the conditioned state and quantum trajectory. In addition, what we know of as the Copenhagen interpretation is a later 1950’s development and some of the earlier pioneers like Bohr did not talk of wave function collapse. In fact, if one takes these earlier ideas and mixes them with later insights of decoherence, a much more satisfying version of Copenhagen quantum mechanics emerges, one for which the collapse of the wave function is seen to be a harmless book keeping device. Along the way, we explain why chaotic systems lead to wave functions that spread out quickly on macroscopic scales implying that Schr¨odinger cat states are the norm rather than curiosities generated in physicists’ laboratories. We then describe how the conditioned state of a quantum system depends crucially on how the system is monitored illustrating this with the example of a decaying atom monitored with a time of arrival photon detector, leading to Bohr’s quantum jumps. On the other hand, other kinds of detection lead to much smoother behaviour, providing yet another example of complementarity. Finally we explain how classical behaviour emerges, including classical mechanics but also thermodynamics. -
Demnächst Auch in Ihrem Laptop?
The Measurement Problem Johannes Kofler Quantum Foundations Seminar Max Planck Institute of Quantum Optics Munich, December 12th 2011 The measurement problem Different aspects: • How does the wavefunction collapse occur? Does it even occur at all? • How does one know whether something is a system or a measurement apparatus? When does one apply the Schrödinger equation (continuous and deterministic evolution) and when the projection postulate (discontinuous and probabilistic)? • How real is the wavefunction? Does the measurement only reveal pre-existing properties or “create reality”? Is quantum randomness reducible or irreducible? • Are there macroscopic superposition states (Schrödinger cats)? Where is the border between quantum mechanics and classical physics? The Kopenhagen interpretation • Wavefunction: mathematical tool, “catalogue of knowledge” (Schrödinger) not a description of objective reality • Measurement: leads to collapse of the wavefunction (Born rule) • Properties: wavefunction: non-realistic randomness: irreducible • “Heisenberg cut” between system and apparatus: “[T]here arises the necessity to draw a clear dividing line in the description of atomic processes, between the measuring apparatus of the observer which is described in classical concepts, and the object under observation, whose behavior is represented by a wave function.” (Heisenberg) • Classical physics as limiting case and as requirement: “It is decisive to recognize that, however far the phenomena transcend the scope of classical physical explanation, the -
Consciousness, Philosophical Issues About Ned Block New York University I
To appear in The Encyclopedia of Cognitive Science Consciousness, Philosophical Issues about Ned Block New York University I. The Hard Problem There are a number of different matters that come under the heading of ‘consciousness’. One of them is phenomenality, the feeling of say a sensation of red or a pain, that is what it is like to have such a sensation or other experience. Another is reflection on phenomenality. Imagine two infants, both of which have pain, but only one of which has a thought about that pain. Both would have phenomenal states, but only the latter would have a state of reflexive consciousness. This entry will start with phenomenality, moving later to reflexivity and then to one other kind of consciousness. The Hard Problem of consciousness is how to explain a state of consciousness in terms of its neurological basis. If neural state N is the neural basis of the sensation of red, why is N the basis of that experience rather than some other experience or none at all? Chalmers (1996) distinguishes between the Hard Problem and “easy” problems that concern the function of consciousness. The Hard Problem (though not under that name) was identified by Nagel (1974) and further analyzed in Levine (1983). There are two reasons for thinking that the Hard Problem has no solution. 1. Actual Failure. In fact, no one has been able to think of even a highly speculative answer. 2. Principled Failure. The materials we have available seem ill suited to providing an answer. As Nagel says, an answer to this question would seem to require an objective account that necessarily leaves out the subjectivity of what it is trying to explain. -
Wittgenstein and Descartes on Consciousness
International Journal of Humanities and Social Science Invention ISSN (Online): 2319 – 7722, ISSN (Print): 2319 – 7714 www.ijhssi.org Volume 3 Issue 10 ǁ October. 2014 ǁ PP.27-30 Wittgenstein and Descartes on Consciousness Dr. Bimal Chandra Gogoi Associate Professor, Department of Philosophy, Lakhimpur Kendriya Mahavidyalaya (Dibrugarh University), North Lakhimpur, Assam, India ABSTRACT : The concept of consciousness has been discussed by a number of philosophers in the history of philosophy but it still needs more detailed interpretations. Philosophy has never been stable and as time passes philosophical problems arises with new directions of study. Descartes, in his Meditations, proved that his essence is thinking or consciousness and discussed the nature of mind, its relation to material body and consciousness without the body etc. Wittgenstein doesn’t regard consciousness to be the essence of mind or mental phenomena. He criticizes the Cartesian theory of consciousness, which regards consciousness to be a private inner essence. The aim of this paper is to analyze and compare the views of both the philosophers about the nature of consciousness. KEWORDS: Consciousness, Criticism, Essence, Descartes, Wittgenstein I. INTRODUCTION . In the history of philosophy, the problem of mind or soul is regarded as one of the vital problems, which attracted philosophers a good deal. Man as an intellectual being; always tries to inquire into his own mind. It is a bare fact that we have a mind and it is accepted by every person. Although “mind” is an ambiguous term no body would accept that he has no mind, but it does not mean that he knows the meaning of it or he is pointing out something to be his mind. -
Advanced Quantum Theory AMATH473/673, PHYS454
Advanced Quantum Theory AMATH473/673, PHYS454 Achim Kempf Department of Applied Mathematics University of Waterloo Canada c Achim Kempf, September 2017 (Please do not copy: textbook in progress) 2 Contents 1 A brief history of quantum theory 9 1.1 The classical period . 9 1.2 Planck and the \Ultraviolet Catastrophe" . 9 1.3 Discovery of h ................................ 10 1.4 Mounting evidence for the fundamental importance of h . 11 1.5 The discovery of quantum theory . 11 1.6 Relativistic quantum mechanics . 13 1.7 Quantum field theory . 14 1.8 Beyond quantum field theory? . 16 1.9 Experiment and theory . 18 2 Classical mechanics in Hamiltonian form 21 2.1 Newton's laws for classical mechanics cannot be upgraded . 21 2.2 Levels of abstraction . 22 2.3 Classical mechanics in Hamiltonian formulation . 23 2.3.1 The energy function H contains all information . 23 2.3.2 The Poisson bracket . 25 2.3.3 The Hamilton equations . 27 2.3.4 Symmetries and Conservation laws . 29 2.3.5 A representation of the Poisson bracket . 31 2.4 Summary: The laws of classical mechanics . 32 2.5 Classical field theory . 33 3 Quantum mechanics in Hamiltonian form 35 3.1 Reconsidering the nature of observables . 36 3.2 The canonical commutation relations . 37 3.3 From the Hamiltonian to the equations of motion . 40 3.4 From the Hamiltonian to predictions of numbers . 44 3.4.1 Linear maps . 44 3.4.2 Choices of representation . 45 3.4.3 A matrix representation . 46 3 4 CONTENTS 3.4.4 Example: Solving the equations of motion for a free particle with matrix-valued functions . -
NIETZSCHE and NIHILISM Brian Gilbert a Thesis Submitted In
NIETZSCHE AND NIHILISM Brian Gilbert A thesis submitted in conformity with the requirements for the degree of Doctor of Education Department of Theory and Policy Ontario hstitute for Studies in Education of the University of Toronto O Copyright by Brian Gilbert (1999) National Library Bibliothèque nationale du Canada Acquisitions and Acquisitions et Bibliographie Services services bibliographiques 395 Wellington Street 395. rue Wellington Ottawa ON K1A ON4 Ottawa ON KtA ON4 canada canada Your Me Votre reference Our Ne Notre ref6rence The author has granted a non- L'auteur a accordé une licence non exclusive licence allowing the exclusive permettant à la National Library of Canada to Bibliothèque nationale du Canada de reproduce, ban, distribute or sell reproduire, prêter, distribuer ou copies of this thesis in microfom, vendre des copies de cette thèse sous paper or electronic formats. la forme de microfiche/fïlm, de reproduction sur papier ou sur format électronique. The author retains ownership of the L'auteur conserve la propriété du copyright in this thesis. Neither the droit d'auteur qui protège cette thèse. thesis nor substantial extracts fiom it Ni la thèse ni des extraits substantiels may be printed or otherwise de celle-ci ne doivent être imprimés reproduced without the author's ou autrement reproduits sans son permission. autorisation. NIETZSCHE AND NIHILISM Brian Howard Gilbert, Ed. D., 1999 Department of Theory and Policy Studies University of Toronto ABSTRACT The failure of Hegel's attempt at a 'grand' synthesis of Platonic and Christian thought has forced upon continental philosophy a radical rethinking and reevaluation of both metaphysics and theology -what Heidegger has called the onto-theological tradition. -
Searle's Critique of the Multiple Drafts Model of Consciousness 1
FACTA UNIVERSITATIS Series: Linguistics and Literature Vol. 7, No 2, 2009, pp. 173 - 182 SEARLE'S CRITIQUE OF THE MULTIPLE DRAFTS MODEL OF CONSCIOUSNESS 1 UDC 81'23(049.32) Đorđe Vidanović Faculty of Philosophy, University of Niš, Serbia E-mail: [email protected] Abstract. In this paper I try to show the limitations of John Searle's critique of Daniel Dennett's conception of consciousness based on the idea that the computational architecture of consciousness is patterned on the simple replicating units of information called memes. Searle claims that memes cannot substitute virtual genes as expounded by Dennett, saying that the spread of ideas and information is not driven by "blind forces" but has to be intentional. In this paper I try to refute his argumentation by a detailed account that tries to prove that intentionality need not be invoked in accounts of memes (and consciousness). Key words: Searle, Dennett, Multiple Drafts Model, consciousness,memes, genes, intentionality "No activity of mind is ever conscious" 2 (Karl Lashley, 1956) 1. INTRODUCTION In his collection of the New York Times book reviews, The Mystery of Conscious- ness (1997), John Searle criticizes Daniel Dennett's explanation of consciousness, stating that Dennett actually renounces it and proposes a version of strong AI instead, without ever accounting for it. Received June 27, 2009 1 A version of this paper was submitted to the Department of Philosophy of the University of Maribor, Slovenia, as part of the Festschrift for Dunja Jutronic in 2008, see http://oddelki.ff.uni-mb.si/filozofija/files/Festschrift/Dunjas_festschrift/vidanovic.pdf 2 Lashley, K. -
Mysticism and Mystical Experiences
1 Mysticism and Mystical Experiences The first issue is simply to identify what mysti cism is. The term derives from the Latin word “mysticus” and ultimately from the Greek “mustikos.”1 The Greek root muo“ ” means “to close or conceal” and hence “hidden.”2 The word came to mean “silent” or “secret,” i.e., doctrines and rituals that should not be revealed to the uninitiated. The adjec tive “mystical” entered the Christian lexicon in the second century when it was adapted by theolo- gians to refer, not to inexpressible experiences of God, but to the mystery of “the divine” in liturgical matters, such as the invisible God being present in sacraments and to the hidden meaning of scriptural passages, i.e., how Christ was actually being referred to in Old Testament passages ostensibly about other things. Thus, theologians spoke of mystical theology and the mystical meaning of the Bible. But at least after the third-century Egyptian theolo- gian Origen, “mystical” could also refer to a contemplative, direct appre- hension of God. The nouns “mystic” and “mysticism” were only invented in the seven teenth century when spirituality was becoming separated from general theology.3 In the modern era, mystical inter pretations of the Bible dropped away in favor of literal readings. At that time, modernity’s focus on the individual also arose. Religion began to become privatized in terms of the primacy of individuals, their beliefs, and their experiences rather than being seen in terms of rituals and institutions. “Religious experiences” also became a distinct category as scholars beginning in Germany tried, in light of science, to find a distinct experi ential element to religion. -
1 Does Consciousness Really Collapse the Wave Function?
Does consciousness really collapse the wave function?: A possible objective biophysical resolution of the measurement problem Fred H. Thaheld* 99 Cable Circle #20 Folsom, Calif. 95630 USA Abstract An analysis has been performed of the theories and postulates advanced by von Neumann, London and Bauer, and Wigner, concerning the role that consciousness might play in the collapse of the wave function, which has become known as the measurement problem. This reveals that an error may have been made by them in the area of biology and its interface with quantum mechanics when they called for the reduction of any superposition states in the brain through the mind or consciousness. Many years later Wigner changed his mind to reflect a simpler and more realistic objective position, expanded upon by Shimony, which appears to offer a way to resolve this issue. The argument is therefore made that the wave function of any superposed photon state or states is always objectively changed within the complex architecture of the eye in a continuous linear process initially for most of the superposed photons, followed by a discontinuous nonlinear collapse process later for any remaining superposed photons, thereby guaranteeing that only final, measured information is presented to the brain, mind or consciousness. An experiment to be conducted in the near future may enable us to simultaneously resolve the measurement problem and also determine if the linear nature of quantum mechanics is violated by the perceptual process. Keywords: Consciousness; Euglena; Linear; Measurement problem; Nonlinear; Objective; Retina; Rhodopsin molecule; Subjective; Wave function collapse. * e-mail address: [email protected] 1 1. -
Mysticism and Cognitive Neuroscience: We Stand at the Threshold of a New Era in Modern Science … with the Coming of the Neuroscience Revolution
248 discipline within a network of diverse approaches to humanistic issues. Taylor writes that, Mysticism and cognitive neuroscience: We stand at the threshold of a new era in modern science … with the coming of the neuroscience revolution. Before, pure science was able a partnership in the quest for consciousness to brush the philosophical questions aside and, indeed, banished all but the most positivist rhetoric from the discussion of what constituted * Brian Les Lancaster scientific reality. Now, the neuroscience revolution, with its inter- disciplinary communication between the basic sciences, its cross- -fertilization of methods, and its focus for the first time on the biology of Resumo consciousness, appears to have important humanistic implications far beyond the dictates of the reductionistic approach that spawned it. Neste artigo são integrados os conhecimentos neurofisiológicos com (p. 468) um modelo de processos perceptuais e de memória, baseado no misticismo da linguagem Sufi e judaica, e com a análise do pensamento An indicator of the importance of neuroscience may be observed in fundado em textos do Budista Abhidhamma. Os estados místicos pro- the various hybrid disciplines that have been spawned over recent years, movidos nestas tradições parecem envolver consciência, sugerindo-se each of which includes the prefix ‘neuro-’ as an emblem of authority, as it que são estes estados de pré-consciência que produzem a consciência were. Illustrative of this trend are neurophenomenology (Varela, 1996, 1999), de algo mais que William James, Rudolph Otto e outros classicamente neuro-psychoanalysis (Kaplan-Solms & Solms, 2000; Solms, 2000), and the associaram no sentido do espiritual, em particular a asserção principal, topic of my paper, neurotheology (Ashbrook, 1984; d’Aquili & Newberg, dos textos místicos Judeus de que o impulso de baixo activa o de cima é comparável com a neurociência da consciência.