In this book, which remained unfinished at his death, Husserl attempts to forge a union between phenomenology and existentialism.

Classical mechanics and quantum mechanics are two of the most successful scientific theories ever discovered, and yet how they can describe the same world is far from clear: one theory is deterministic, the other indeterministic; one theory describes a world in which chaos is pervasive, the other a world in which chaos is absent. Focusing on the exciting field of 'quantum chaos', this book reveals that there is a subtle and complex relation between classical and quantum mechanics. It challenges the (...) received view that classical and quantum mechanics are incommensurable, and revives another, largely forgotten tradition due to Niels Bohr and Paul Dirac. By artfully weaving together considerations from the history of science, philosophy of science, and contemporary physics, this book offers a new way of thinking about intertheory relations and scientific explanation. It will be of particular interest to historians and philosophers of science, philosophically-inclined physicists, and interested non-specialists. (shrink)

Introductory survey -- Atomic theory and mechanics -- The quantum postulate and the recent development of atomic theory -- The quantum of action and the description of nature -- The atomic theory and the fundamental principles underlying the description of nature.

How is mind related to matter? This ancient question in philosophy is rapidly becoming a core problem in science, perhaps the most important of all because it probes the essential nature of man himself. The origin of the problem is a conflict between the mechanical conception of human beings that arises from the precepts of classical physical theory and the very different idea that arises from our intuition: the former reduces each of us to an automaton, while the latter allows (...) our thoughts to guide our actions. The dominant contemporary approaches to the problem attempt to resolve this conflict by clinging to the classical concepts, and trying to explain away our misleading intuition. But a detailed argument given here shows why, in a scientific approach to this problem, it is necessary to use the more basic principles of quantum physics, which bring the observer into the dynamics, rather than to accept classical precepts that are profoundly incorrect precisely at the crucial point of the role of human consciousness in the dynamics of human brains. Adherence to the quantum principles yields a dynamical theory of the mind/brain/body system that is in close accord with our intuitive idea of what we are. In particular, the need for a self-observing quantum system to pose certain questions creates a causal opening that allows mind/brain dynamics to have three distinguishable but interlocked causal processes, one micro-local, one stochastic, and the third experiential. Passing to the classical limit in which the critical difference between zero and the finite actual value of Planck's constant is ignored not only eliminates the chemical processes that are absolutely crucial to the functioning of actual brains, it simultaneously blinds the resulting theoretical construct to the physical fine structure wherein the effect of mind on matter lies: the use of this limit in this context is totally unjustified from a physics perspective. (shrink)

As the theory of the atom, quantum mechanics is perhaps the most successful theory in the history of science. It enables physicists, chemists, and technicians to calculate and predict the outcome of a vast number of experiments and to create new and advanced technology based on the insight into the behavior of atomic objects. But it is also a theory that challenges our imagination. It seems to violate some fundamental principles of classical physics, principles that eventually have become a part (...) of western common sense since the rise of the modern worldview in the Renaissance. So the aim of any metaphysical interpretation of quantum mechanics is to account for these violations. (shrink)

A fundamental assumption of theories of decision-making is that we detect mismatches between intention and outcome, adjust our behavior in the face of error, and adapt to changing circumstances. Is this always the case? We investigated the relation between intention, choice, and introspection. Participants made choices between presented face pairs on the basis of attractiveness, while we covertly manipulated the relationship between choice and outcome that they experienced. Participants failed to notice conspicuous mismatches between their intended choice and the outcome (...) they were presented with, while nevertheless offering introspectively derived reasons for why they chose the way they did. We call this effect choice blindness. (shrink)

Reviews evidence which suggests that there may be little or no direct introspective access to higher order cognitive processes. Ss are sometimes unaware of the existence of a stimulus that importantly influenced a response, unaware of the existence of the response, and unaware that the stimulus has affected the response. It is proposed that when people attempt to report on their cognitive processes, that is, on the processes mediating the effects of a stimulus on a response, they do not do (...) so on the basis of any true introspection. Instead, their reports are based on a priori, implicit causal theories, or judgments about the extent to which a particular stimulus is a plausible cause of a given response. This suggests that though people may not be able to observe directly their cognitive processes, they will sometimes be able to report accurately about them. Accurate reports will occur when influential stimuli are salient and are plausible causes of the responses they produce, and will not occur when stimuli are not salient or are not plausible causes. (shrink)

As is the case with other concepts about mental affairs, the concept of introspection has many different interpretations. Some seem to consider introspecting a perceptive act and others see it as a thinking activity . For the present purpose, we will claim it as a common understanding in all such theories that introspection presupposes consciousness . States of consciousness, broadly discussed in the philosophical and empirical literature as first order states of consciousness, are states in which a subject is aware (...) of some or other object, thought, or feeling. Introspective states, however, are states in which a subject directs his or her attention towards their own conscious state. According to this understanding which we claim is a widespread one introspection can exist only in conscious subjects, and, furthermore, it is by way of introspection that a subject can learn about having this or that experience. To avoid misunderstandings, we wish to underline that the claim is not that experiencing as such is dependent upon such acts of introspection. On the contrary, we believe that a subject can have all kinds of intero- and exteroceptive experiences, directing attention towards the represented object . It is only when the subject directs attention not towards the object as such but towards the very state of being conscious of the object that he or she is introspective. (shrink)

What is consciousness? Some philosophers have contended that ‘qualia’, or an experiential medium from which consciousness is derived, exists as a fundamental component of reality. Whitehead, for example, described the universe as being comprised of ‘occasions of experience’. To examine this possibility scientifically, the very nature of physical reality must be re-examined. We must come to terms with the physics of space-time -- as is described by Einstein's general theory of relativity -- and its relation to the fundamental theory of (...) matter -- as described by quantum theory. This leads us to employ a new physics of objective reduction: OR which appeals to a form of ‘quantum gravity’ to provide a useful description of fundamental processes at the quantum/classical borderline . Within the OR scheme, we consider that consciousness occurs if an appropriately organized system is able to develop and maintain quantum coherent superposition until a specific ‘objective’ criterion is reached; the coherent system then self-reduces . We contend that this type of objective self-collapse introduces non-computability, an essential feature of consciousness. OR is taken as an instantaneous event -- the climax of a self-organizing process in fundamental space-time -- and a candidate for a conscious Whitehead-like ‘occasion’ of experience. How could an OR process occur in the brain, be coupled to neural activities, and account for other features of consciousness? We nominate an OR process with the requisite characteristics to be occurring in cytoskeletal microtubules within the brain's neurons. (shrink)

Throughout history there have been people who say it is all illusion. I think they may be right. But if they are right what could this mean? If you just say "It's all an illusion" this gets you nowhere - except that a whole lot of other questions appear. Why should we all be victims of an illusion, instead of seeing things the way they really are? What sort of illusion is it anyway? Why is it like that and not (...) some other way? Is it possible to see through the illusion? And if so what happens next. (shrink)

The question has long confounded philosophers and scientists, and it is this so-called explanatory gap between biological life and consciousness that Evan ...

The Embodied Mind provides a unique, sophisticated treatment of the spontaneous and reflective dimension of human experience.

This paper responds to the issues raised by D. Chalmers by offering a research direction which is quite radical because of the way in which methodological principles are linked to scientific studies of consciousness. Neuro-phenomenology is the name I use here to designate a quest to marry modern cognitive science and a disciplined approach to human experience, thereby placing myself in the lineage of the continental tradition of Phenomenology. My claim is that the so-called hard problem that animates these Special (...) Issues can only be addressed productively by gathering a research community armed with new pragmatic tools for the development of a science of consciousness. I will claim that no piecemeal empirical correlates, nor purely theoretical principles, will really help us at this stage. We need to turn to a systematic exploration of the only link between mind and consciousness that seems both obvious and natural: the structure of human experience itself. In what follows I motivate my choice by briefly examining the current debate about consciousness at the light of Chalmer’s hard problem. Next, I outline the phenomenological strategy. Finally I conclude by discussing some of the main difficulties and consequences of this strategy. (shrink)

Context: Philosophical and - more recently - empirical approaches to the study of mind have recognized the research of lived experience as crucial for the understanding of their subject matter. Such research is faced with self-referentiality: every attempt at examining the experience seems to change the experience in question. This so-called “excavation fallacy” has been taken by many to undermine the possibility of first-person inquiry as a form of scientific practice. Problem: What is the epistemic character and value of reflectively (...) acquired phenomenological data? Can the study of experience, despite the excavation fallacy, rely on the act of reflection on lived experience and make sense and use of its results? Method: Through a philosophical discourse, informed by empirical first-person inquiry, we explore the experiential structure of the act of reflection and the formation of the corresponding belief about past experience. Results: We present a provisional first-person model of the experiential dynamics of retrospective reflection, in which the reflective act is characterized as enaction of belief about past experience that co-determines - rather than distorts - its results. From a constructivist perspective on the inevitable interdependence between the act of observing and the observed, the excavation “fallacy” is recognized as an intrinsic characteristic of reflection. Reflection is described as an iterative, self-referential process, guided by a context- and subject-specific horizon of expectations. Implications: Knowing the characteristics of the formation of beliefs about experience is essential for understanding first-person data and for the possibility of their acquisition and use in scientific practice, particularly in the context of second-person approaches to the study of experience. Constructivist content: We relate the proposed understanding of reflection to constructivist epistemology and argue that constructivism provides an epistemological foundation for the empirical study of experience more suitable than the traditional epistemological objectivism of cognitive science. We suggest that the constructive nature of the process of reflection calls for a collaboration between the fields of constructivism, phenomenology, and first-person research, and points towards the potential for their mutual enrichment. (shrink)

_The Phenomenological Mind_ is the first book to properly introduce fundamental questions about the mind from the perspective of phenomenology. Key questions and topics covered include: • what is phenomenology? • naturalizing phenomenology and the cognitive sciences • phenomenology and consciousness • consciousness and self-consciousness • time and consciousness • intentionality • the embodied mind • action • knowledge of other minds • situated and extended minds • phenomenology and personal identity. This second edition includes a new preface, and revised (...) and improved chapters. Also included are helpful features such as chapter summaries, guides to further reading, and a glossary, making _The Phenomenological Mind_ an ideal introduction to key concepts in phenomenology, cognitive science and philosophy of mind. (shrink)

Throughout history there have been people who say it is all illusion. I think they may be right. But if they are right what could this mean? If you just say 'It's all an illusion' this gets you nowhere-- except that a whole lot of other questions appear. Why should we all be victims of an illusion instead of seeing things the way they really are? What sort of illusion is it anyway? Why is it like that and not some (...) other way? Is it possible to see through the illusion? And if so what happens next. These are difficult questions, but if the stream of consciousness is an illusion, we should be trying to answer them rather than more conventional questions about consciousness. I shall explore these questions though I cannot claim that I will answer them. In doing so I shall rely on two methods. First, there are the methods of science, based on theorising and hypothesis testing-- on doing experiments to find out how the world works. Second, there is disciplined observation-- watching experience as it happens to find out how it really seems. This sounds odd. You might say that your own experience is infallible-- that if you say it is like this for you then no one can prove you wrong. I only suggest you look a bit more carefully. Perhaps then it won't seem quite the way you thought it did before. I suggest that both these methods are helpful for penetrating the illusion-- if illusion it is. (shrink)

Brains, it has recently been argued, are essentially prediction machines. They are bundles of cells that support perception and action by constantly attempting to match incoming sensory inputs with top-down expectations or predictions. This is achieved using a hierarchical generative model that aims to minimize prediction error within a bidirectional cascade of cortical processing. Such accounts offer a unifying model of perception and action, illuminate the functional role of attention, and may neatly capture the special contribution of cortical processing to (...) adaptive success. This target article critically examines this approach, concluding that it offers the best clue yet to the shape of a unified science of mind and action. Sections 1 and 2 lay out the key elements and implications of the approach. Section 3 explores a variety of pitfalls and challenges, spanning the evidential, the methodological, and the more properly conceptual. The paper ends (sections 4 and 5) by asking how such approaches might impact our more general vision of mind, experience, and agency. (shrink)

Context: We are presently witnessing a revival of introspective methods, which implicitly challenges an impressive list of in-principle objections that were addressed to introspection by various philosophers and by behaviorists. Problem: How can one overcome those objections and provide introspection with a secure basis? Results: A renewed definition of introspection as “enlargement of the field of attention and contact with re-enacted experience,” rather than “looking-within,” is formulated. This entails (i) an alternative status of introspective phenomena, which are no longer taken (...) as revelations of some an sich slice of experience, but as full-fledged experiences; and (ii) an alternative view of the validity of first-person reports as “performative coherence” rather than correspondence. A preliminary empirical study of the self-assessed reliability of introspective data using the elicitation interview method is then carried out. It turns out that subjects make use of reproducible processual criteria in order to probe into the authenticity and completeness of their own introspective reports. Implications: Introspective inquiry is likely to have enough resources to “take care of itself.” Constructivist content: It is argued that the failure of the introspectionist wave of the turn of the 19th/20th centuries is mostly due to its unconditional acceptance of the representationalist theory of knowledge, and that alternative non-representationalist criteria of validity give new credibility to introspective knowledge. (shrink)

This article presents an interview method which enables us to bring a person, who may not even have been trained, to become aware of his or her subjective experience, and describe it with great precision. It is focused on the difficulties of becoming aware of one’s subjective experience and describing it, and on the processes used by this interview technique to overcome each of these difficulties. The article ends with a discussion of the criteria governing the validity of the descriptions (...) obtained, and then with a brief review of the functions of these descriptions. (shrink)

Much of our understanding of human thinking is based on probabilistic models. This innovative book by Jerome R. Busemeyer and Peter D. Bruza argues that, actually, the underlying mathematical structures from quantum theory provide a much better account of human thinking than traditional models. They introduce the foundations for modelling probabilistic-dynamic systems using two aspects of quantum theory. The first, 'contextuality', is a way to understand interference effects found with inferences and decisions under conditions of uncertainty. The second, 'quantum entanglement', (...) allows cognitive phenomena to be modeled in non-reductionist ways. Employing these principles drawn from quantum theory allows us to view human cognition and decision in a totally new light. Introducing the basic principles in an easy-to-follow way, this book does not assume a physics background or a quantum brain and comes complete with a tutorial and fully worked-out applications in important areas of cognition and decision. (shrink)

The article explores meditation-based examination of experience as a means for developing a contemplative, nonnaturalized, and existentially meaningful empirical research of consciousness in which the experiencing person is regarded as the primary investigator. As the first phase of a broader project, a group of seven researchers carried out a series of five meditation retreats. We sampled the ongoing experience of the researchers at the same random moments during meditation practice. The acquired data, consisting of more than 500 journal entries, interview (...) transcripts, and participatory analysis records, set the ground for three lines of enquiry: (1) What, if any, kind of meditative practice is suitable for researching experience? How can it be cultivated? (2) Can a group of researchers skilled in meditation systematically investigate selected experiential phenomena? (3) What is the actual lived experience of a group of researchers engaged in a continuous meditation-based examination of experience? In this report, we primarily focus on the third question, offering a concrete ethnographic overview of our research enterprise. We conclude by relating our findings to the discussion of the phenomenological practice of the epoché as an empirical tool for the study of consciousness. (shrink)

This paper describes a method for analyzing a corpus of descriptions collected through micro-phenomenological interviews. This analysis aims at identifying the structure of the singular experiences which have been described, and in particular their diachronic structure, while unfolding generic experiential structures through an iterative approach. After summarizing the principles of the micro-phenomenological interview, and then describing the process of preparation of the verbatim, the article presents on the one hand, the principles and conceptual devices of the analysis method and on (...) the other hand several dimensions of the analysis process: the modes of structural unfolding of generic structures, the mutual guidance of the processes of structural and experiential unfolding, the tracking of analysis processes, and finally the assessment of analysis results. (shrink)

A new theory is taking hold in neuroscience. It is the theory that the brain is essentially a hypothesis-testing mechanism, one that attempts to minimise the error of its predictions about the sensory input it receives from the world. It is an attractive theory because powerful theoretical arguments support it, and yet it is at heart stunningly simple. Jakob Hohwy explains and explores this theory from the perspective of cognitive science and philosophy. The key argument throughout The Predictive Mind is (...) that the mechanism explains the rich, deep, and multifaceted character of our conscious perception. It also gives a unified account of how perception is sculpted by attention, and how it depends on action. The mind is revealed as having a fragile and indirect relation to the world. Though we are deeply in tune with the world we are also strangely distanced from it. (shrink)

Phenomenology of practice is formative of sensitive practice, issuing from the pathic power of phenomenological reflections. Pathic knowing inheres in the sense and sensuality of our practical actions, in encounters with others and in the ways that our bodies are responsive to the things of our world and to the situations and relations in which we find ourselves. Phenomenology of practice is an ethical corrective of the technological and calculative modalities of contemporary life. It finds its source and impetus in (...) practical phenomenologies of reading and writing that open up possibilities for creating formative relations between being and acting, self and other, interiorities and exteriorities, between who we are and how we act. (shrink)

’. . . through the epoche, the gaze of the philosopher in truth first becomes fully free. . . . [F]ree of the strongest and most universal, and at the same time most hidden, internal bond, namely, of the pre-givenness of the world.’ This paper is concerned with the method of phenomenological reduction understood as a disciplined embodied practice.

The main objective of this article is to capitalise on many years of research, and of practice, relating to the use of introspection in a research context, and thus to provide an initial outline description of introspection, while developing an introspection of introspection. After a description of the context of this research, I define the institutional conditions which would enable the renewal of introspection as a research methodology. Then I describe three aspects of introspective practice: 1) introspection as a process (...) of becoming aware, theorized through Husserl's model of consciousness modes; 2) introspection as recollection, through the model of retention and awakening in Husserl's theory of memory; 3) the use of universal descriptive categories for the description of all lived experiences, as a guide for skilled practice of introspection in research. Finally I examine the question of the validation of introspective data, suggesting a strong distinction between the ethical criterion and the epistemic criterion of truth. (shrink)

In her editorial introduction to the special issue 10 years of Viewing from Within: the Legacy of Francisco Varela as well as in her co-authored contribution 'The validity of first-person descriptions as authenticity and coherence' , Claire Petitmengin expresses some reservations about the way I have been characterizing reflection in some of my earlier writings. In replying to the criticism, I will use the occasion to amplify some of my previous remarks, pinpoint what I take to be some ambiguities in (...) Petitmengin and Bitbol's own positive proposal, make some additional points that relate directly to the important questions that they raise in their joint paper, and finish off with a few remarks regarding one of the central claims made by Vermersch in his contribution to the special issue. (shrink)

This article addresses the issue of objectivism vs constructivism in two areas,biology and cognitive science, which areintermediate between the natural sciences suchas physics (where objectivism is dominant) andthe human and social sciences (whereconstructivism is widespread). The issues inbiology and in cognitive science are intimatelyrelated; in each of these twin areas, the objectivism vs constructivism issue isinterestingly and rather evenly balanced; as aresult, this issue engenders two contrastingparadigms, each of which has substantialspecific scientific content. The neo-Darwinianparadigm in biology is closely resonant (...) withthe classical cognitivist paradigm in cognitivescience, and both of them are intrinsicallyobjectivist. The organismic paradigm inbiology, based on the concept of autopoiesis,is consonant with the paradigm of enaction incognitive science; the latter paradigms are bothprofoundly constructivist.In cognitive science, the objectivism vsconstructivism issue is internal to thescientific field itself and reflexivity isinescapable. At this level, strong ontologicalobjectivism is self-contradictory and thereforeuntenable. Radical constructivism isself-coherent; but it also rehabilitatesa weak form of objectivism as a pragmaticallyviable alternative. In conclusion, there is aneven-handed reciprocity between objectivistand constructivist perspectives. Finally, thearticle examines the consequences of thisconclusion for fields other than cognitivescience: biology; physics and the naturalsciences; and the human and social sciences. (shrink)

Searches for the sources and means for a disciplined practical approach to exploring human experience.