This paper clarifies Merleau-Ponty’s original account of “higher-order” cognition as fundamentally embodied and enacted. Merleau-Ponty’s philosophy inspired theories that deemphasize overlaps between conceptual knowledge and motor intentionality or, on the contrary, focus exclusively on abstract thought. In contrast, this paper explores the link between Merleau-Ponty’s account of motor intentionality and his interpretations of our capacity to understand and interact productively with cultural symbolic systems. I develop my interpretation based on Merleau-Ponty’s analysis of two neuropathological modifications of motor intentionality, the case (...) of the brain-injured war veteran Schneider, and a neurological disorder known as Gerstmann’s syndrome. Building on my analysis of Schneider’s sensorimotor compensatory performances in relation to his limitations in the domains of algebra, geometry, and language usage, I demonstrate a strong continuity between the sense of embodiment and enaction at all these levels. Based on Merleau-Ponty’s interpretations, I argue that “higher-order” cognition is impaired in Schneider insofar as his injury limits his sensorimotor capacity to dynamically produce comparatively more complex differentiations of any given phenomenal structure. I then show how Merleau-Ponty develops and specifies his interpretation of Schneider’s intellectual difficulties in relation to the ambiguous role of the body, and in particular the hand, in Gerstmann’s syndrome. I explain how Merleau-Ponty defends the idea that sensorimotor and quasi-representational cognition are mutually irreducible, while maintaining that symbol-based cognition is a fundamentally enactive and embodied process. (shrink)

This study clarifies the need for a renewed account of the body in physiotherapy to fill sizable gaps between physiotherapeutical theory and practice. Physiotherapists are trained to approach bodily functioning from an objectivist perspective; however, their therapeutic interactions with patients are not limited to the provision of natural-scientific explanations. Physiotherapists’ practice corresponds well to theorisation of the body as the bearer of original bodily intentionality, as outlined by Merleau-Ponty and elaborated upon by enactivists. We clarify how physiotherapeutical practice corroborates Merleau-Ponty’s (...) critical arguments against objectivist interpretations of the body; particularly, his analyses demonstrate that norms of optimal corporeal functioning are highly individual and variable in time and thus do not directly depend on generic physiological structures. In practice, objectively measurable physical deviations rarely correspond to specific subjective difficulties and, similarly, patients’ reflective insights into their own motor deficiencies do not necessarily produce meaningful motor improvements. Physiotherapeutical procedures can be understood neither as mechanical manipulations of patients’ machine-like bodies by experts nor as a process of such manipulation by way of instructing patients’ explicit conscious awareness. Rather, physiotherapeutical practice and theory can benefit from the philosophical interpretation of motor disorders as modifications of bodily intentionality. Consequently, motor performances addressed in physiotherapy are interpreted as relational features of a living organism coupled with its environment, and motor disorders are approached as failures to optimally manage the motor requirements of a given situation owing to a relative loss of the capacity to structure one’s relation with their environment through motor action. Building on this, we argue that the process of physiotherapy is most effective when understood as a bodily interaction to guide patients towards discovering better ways of grasping a situation as meaningful through bodily postures and movements. (shrink)

This paper is my commentary on Raymond Tallis’ book Freedom: An Impossible Reality (2021). Tallis argues that the laws described by science are dependent on human agency which extracts them from nature. Consequently, human agency cannot be explained as an effect of natural laws. I agree with Tallis’ main argument and I appreciate that he helps us understand the systematic importance of a human-scale breadth of view regarding any theoretical investigation. In the main part of the paper, I critically comment (...) on Tallis’ interpretation of several more loosely associated topics from a phenomenological perspective. Firstly, I reconsider Tallis’ account of intentionality as a factor that opens a distance between the cognizer and the world. Whereas Tallis emphasizes that agency requisitions aspects of the world to achieve its goals, I point out that agency does not determine the meaning of things unidirectionally and independently of all context. A self-controlled agency is provisionally reached through a process of ‘deindexicalization’ of our passive intentional capacities, that is, by creating and maintaining new, different worldly contexts. Subsequently, I analyze Tallis’ description of our intentional relation to spatiotemporally distant possibilities. In my view, Tallis underestimates the extent to which our intentional relation to possibilities is pre-reflexive and pre-predicative and hence independent of propositional attitudes. Finally, I consider Tallis’ interpretation of nature and show that it is deeply influenced by the sciences of nature. In contrast, I argue that agency can be properly described only if we understand it as an intervention in a lifeworld already imbued with sense, not merely a physical or material nature. (shrink)

The goal of this chapter is to provide an interpretation of experiential learning that fully detaches itself from the epistemological presuppositions of empiricist and intellectualist accounts of learning. I first introduce the concept of schema as understood by Kant and I explain how it is related to the problems implied by the empiricist and intellectualist frameworks. I then interpret David Kolb’s theory of learning that is based on the concept of learning cycle and represents an attempt to overcome the corresponding (...) drawbacks of these frameworks. I show that Kolb’s theory fails to achieve its goal because it is rooted in some of the fundamental epistemological presuppositions of these frameworks. Subsequently, I present a group of works from phenomenology, in particular Merleau-Ponty’s, in order to show that Kolb’s attempt is insufficient due to a lack of understanding of the problem expressed by Kant via the concept of schema. Finally, I outline an interpretation of experiential learning as differentiation of experiential schemas and explain how it meets the epistemological challenges outlined above. (shrink)

This paper aims to clarify Merleau-Ponty’s contribution to an embodied-enactive account of mathematical cognition. I first identify the main points of interest in the current discussions of embodied higher cognition and explain how they relate to Merleau-Ponty and his sources, in particular Husserl’s late works. Subsequently, I explain these convergences in greater detail by more specifically discussing the domains of geometry and algebra and by clarifying the role of gestalt psychology in Merleau-Ponty’s account. Beyond that, I explain how, for Merleau-Ponty, (...) mathematical cognition requires not only the presence and actual manipulation of some concrete perceptible symbols but, more strongly, how it is fundamentally linked to the structural transformation of the concrete configurations of symbolic systems to which these symbols appertain. Furthemore, I fill a gap in the literature by explaining Merleau-Ponty’s claim that these structural transformations are operated through motor intentionality. This makes it possible, in turn, to contrast Merleau-Ponty’s approach to ontologically idealistic and realistic views on mathematical objects. On Merleau-Ponty’s account, mathematical objects are relational entities, that is, gestalts that necessarily imply situated cognizers to whom they afford a specific type of engagement in the world and on whom they depend in their eventual structural transformations. I argue that, by attributing a strongly constitutive role to phenomenal configurations and their motor transformation in mathematical thinking, Merleau-Ponty contributes to clarifying the worldly, historical, and socio-cultural aspects of mathematical truths without compromising what we perceive as their universality, certainty, and necessity. (shrink)

This study aims to corroborate Merleau-Ponty’s interpretations of fundamental ideas from Saussure’s linguistics by linking them to works that were independently elaborated by Jan Mukařovský, Czech structuralist aesthetician and literary theorist. I provide a comparative analysis of the two authors’ theories of language and their interpretations of thought as fundamentally determined by language. On this basis, I investigate how they conceive linguistic innovation and its translation into changes in the constituted language and other social codes and institutions. I explain how (...) they elaborate on Saussure’s idea of language as a system of oppositions by interpreting cultural innovation as a systematic variation of pre-established social norms and, similarly, linguistic innovation as gesturing within language. Connectedly, I show how Mukařovský’s works help clarify Merleau-Ponty’s focus on the gestural dimension of language. By discussing the two thinkers’ arguments in favour of linguistic innovation, I explore what could be called phenomenological limits of structuralism. (shrink)

This chapter presents an account of Merleau-Ponty’s interpretation of the body schema as an operative intentionality that is not only opposed to, but also complexly intermingled with, the representation-like grasp of the world and one’s own body, or the body image. The chapter reconstructs Merleau-Ponty’s position primarily based on his preparatory notes for his 1953 lecture ‘The Sensible World and the World of Expression’. Here, Merleau-Ponty elaborates his earlier efforts to show that the body schema is a perceptual ground against (...) which the perceived world stands out as a complex of perceptual figures. The chapter clarifies how Merleau-Ponty’s renewed interpretation of the figure-ground structure makes it possible for him to describe the relationship between body schema and perceptual (body) image as a strictly systematic phenomenon. Subsequently, the chapter shows how Merleau-Ponty understands apraxia, sleep, and perceptual orientation as examples of dedifferentiation and subtler differentiation of the body-schematic system. The last section clarifies how such body-schematic differentiating processes give rise to relatively independent superstructures of vision and symbolic cognition which constitute our body image. It, moreover, explains how, according to Merleau-Ponty, the cognitive superstructures always need to be supported by praxic operative intentionality to maintain their full sense, even though, in some cases, they have the power to compensate for praxic deficiencies. (shrink)

In his 1953 lectures at the College de France, Merleau-Ponty dedicated much effort to further developing his idea of embodied subject and interpreted fresh sources that he did not use in Phenomenology of Perception. Notably, he studied more in depth the neurological notion of "body schema". According to Merleau-Ponty, the body schema is a practical diagram of our relationships to the world, an action-based norm with reference to which things make sense. Merleau-Ponty more precisely tried to describe the fundamentally dynamic (...) unity of the body, i.e. the fact there are various possibilities how the practical "diagram" of body schema could be de-differentiated (in pathology) or further refined (via cognitive and cultural superstructures, symbolic systems). This chapter summarises Merleau-Ponty's interpretation of the notion, while contrasting it to the more traditional understanding of the body in phenomenology and recent philosophical texts dealing with body schema. (shrink)

The goal of our article is to review the widespread anthropological figure, according to which we can achieve a better understanding of humans by contrasting them with animals. This originally Herderian approach was elaborated by Arnold Gehlen, who characterized humans as “deficient beings” who become complete through culture. According to Gehlen, humans, who are insufficiently equipped by instincts, indirectly stabilize their existence by creating institutions, i.e., complexes of habitual actions. On the other hand, Maurice Merleau-Ponty shows that corporeal relationship to (...) the world is already indirect because it is based on preestablished and readjusted “standards” or “norms” of interaction with the environment. Merleau-Ponty then calls these norms “institutions” and views culture as readjustment of institutions which operate already on the level of corporeal existence. The anthropological figure of confronting humans and animals thus cannot produce, as in Gehlen, a contrast between an allegedly “direct” relationship to the world in animals and a supposedly “indirect” relationship to the world in humans. The Herderian approach can be meaningfully retained only if interpreted as an invitation to confront the norms of indirect interaction with the world in animals and in people, that is, if viewed as a comparison of their respective institutions. (shrink)

Background: The application of the philosophical mode of investigation called “phenomenology” in the context of sport. Objective: The goal is to show how and why the phenomenological method is very often misused in the sportrelated research. Methods: Interpretation of the key texts, explanation of their meaning. Results: The confrontation of concrete sport-related texts with the original meaning of the key phenomenological notions shows mainly three types of misuse – the confusion of phenomenology with immediacy, with an epistemologically subjectivist stance (phenomenalism), (...) and with empirical research oriented towards objects in the world. Conclusions: Many of the discussed authors try to take over the epistemological validity of phenomenology for their research, which itself is not phenomenological, and it seems that this is because they lack such a methodological foundation. The authors believe that an authentically phenomenological analysis of sport is possible, but it must respect the fundamental distinctions that differentiate phenomenology from other styles of thinking. (shrink)

This article reconsiders Husserl’s concept of Leib in light of Merleau‐Ponty’s interpretation of the human body as an ontologically significant phenomenon. I first analyze Husserl’s account of the body as a “two‐fold unity” and demonstrate the problematic nature of its four implications, namely, the ambiguous ontological status of the body as subject‐object, the view of “my body” as “my object,” the preconstitutive character of the unity of the body, and the restriction of the constitution of the body to touch alone. (...) Building on this analysis, I explain how Merleau‐Ponty resolves the difficulties raised by Husserl’s account by reversing it. According to Merleau‐Ponty, “flesh” is not a two‐fold reality comprising subjective and objective aspects, but an ontological dimension from which these aspects can be abstracted through specific cognitive operations. Consequently, all subjective and objective aspects, even beyond the boundaries of one’s body, must be understood as founded in the indivisible unity of flesh. I argue that a thorough phenomenological description of the human body requires abandoning Husserl’s concept of Leib because it contributes to perpetuating subject‐object dualism. In contrast, Merleau‐Ponty’s notion of flesh reveals the circularity between subject and object and its general ontological significance. (shrink)

Eugen Fink’s interpretation of play is virtually absent in the current philosophy of sport, despite the fact that it is rich in original descriptions of the structure of play. This might be due to Fink’s decision not to merely describe play, but to employ its analysis in the course of an elucidation of the ontological problem of the world as totality. On the other hand, this approach can enable us to properly evaluate the true existential and/or ontological value of play. (...) According to Fink, by integrating beings into the imaginary play-world, we become able to transcend mere circumscribed individual entities and encounter reality as such in a new, more profound way. This positive ontological value of play is, however, forgotten because the imaginary dimension of play is traditionally interpreted as a virtual imitation of a model reality which already actually exists somewhere else. For this reason, Fink returns to the Platonic interpretation of play, which laid the foundations for this understanding, and... (shrink)

[This paper is written in Czech.] The aim of this article is to briefly introduce and critically analyze the dialogue between phenomenology and contemporary theories of embodied cognition in relation to the study of affectivity. The author explains how these theoretical approaches interpret the dynamic relationship between affective experiences on the one hand and bodily behavior and intersubjectively observable processes taking place in the environment on the other. He first summarizes the positions of Joel Krueger and Giovanna Colombetti, who draw (...) on the theories of extended cognition and enactivism, and then compares them with Merleau-Ponty’s phenomenological approach. In this way, there are found to be inconsistencies in Krueger’s and Colombetti’s approaches, whose resolution, in the author’s opinion, requires the working out of a rigorously “relational” interpretation of affectivity. From this point of view, affectivity is not understood as an internal phenomenon causally linked to external material factors, but strictly as a dynamic relationship between a sense-making agent and his or her meaningful environment. (shrink)

The phenomenological point of view of the body is usually appreciated for having introduced the notion of the ‘lived’ body. We cannot merely analyze and explain the body as one of the elements of the world of objects. We must also describe it, for example, as the center of our perspective on the world, the place where our sensing is ‘localized’, the agens which directly executes our intentions. However, in Husserl, the idea of the body as lived primarily complements his (...) objectivism: the body (Leib) is an objective and mental reality, a ‘double unity’, as he writes. In contrast, Merleau-Ponty’s later considerations of the body in Phenomenology of Perception tend to the idea of a circular relationship between the objective and subjective dimensions of the body – between the objective and the lived. One of the means to overcome the idea of the body as a site of the correlation between two opposite and complementary realms is, for Merleau-Ponty, the philosophical interpretation of an early neurological notion of ‘body schema’. Body schema is neither an idea nor a physiological-physical fact, it is rather a practical diagram of our relationships with the world, an action-based norm in reference to which things make sense. In the recently published preparatory notes for his 1953 courses, Merleau-Ponty dedicates much effort to further developing the notion of body schema, and interprets fresh sources that he did not use in Phenomenology of Perception. Notably, he studies various possibilities of how this practical ‘diagram’ can be de-differentiated (pathology) or further refined (cognitive and cultural superstructures, symbolic systems), which shows the fundamentally dynamic unity of the body. This paper summarizes the basic elements of Merleau-Ponty’s 1953 renewed philosophical interpretation of the notion of body schema, while contrasting it to the more traditional understanding of the body in phenomenology and in recent philosophical texts dealing with body schema. (shrink)

[In French] This paper outlines Merleau-Ponty’s interpretation of higher-order cognition as a fundamentally embodied process that is enacted by motor subject situated in natural and cultural environment. More specifically, I exemplify Merleau-Ponty’s interdisciplinary approach to cognition on his interpretations of motor intentionality, operative speech, and mathematical reasoning, which are based on neuropathology, linguistics, and gestalt psychology, respectively. In this analysis, I aim to show that the body is involved in cognition as an operator of the phenomenal structuration of the environment (...) even at the level of linguistic, rational, and abstract experience. (shrink)

According to Eugen Fink, a thorough elucidation of the meaning of play has the capacity to lead us towards an understanding of the world as a totality. In order to go beyond Plato’s understanding of play as an inferior copy of serious action, Fink provides an analysis of the cultic game. This form of playing cannot be said to be the origin of all play, but it enables us to demonstrate how the act of playing transcends circumscribed beings inside the (...) world and provides a relationship with a higher whole, in which the community participating in the play is encompassed. A masked shaman does not represent a particular god, but brings to presence the action of gods upon humans as such. Thus, the cultic game is a symbol of a more important reality, not an inferior representation of an individual reality. This, however, is still not a sufficiently radical interpretation of the ontological dimension of play: the whole is only understood as an action of gods, i.e. mediately. Fink strives to demonstrate on the cont... (shrink)

[In Czech] Merleau-Ponty’s analyses of the pathology of perception show “objective” and “subjective” events have sense for the living body only in relation to its whole equilibrium, that is, to how it organises itself overall and how it thus “meets” those events. If we apply this conception to Husserl’s example of two mutually-touching hands of one body we must then state not that we perceive here a coincidence of certain subjective sensations with certain objective qualities, but rather that my body, (...) in the sense of an object, results from the restructuralisation of the whole field of the body accomplished by the the body as the performer of perceptual intentions. The body-object, and for the same reasons also the body-subject, is therefore the product of the analysis of the body in the sense of a field of structuralisation or polarisation, not its original phenomenological “stratum”, as in Husserl. If the body understands itself as perceptible only by a change of its own structure, inasmuch as it is a certain field of structuralisation, then the "external” thing, which is likewise a pole of such grasping, must belong to the same ontological “field” as the body. Merleau-Ponty’s “flesh”, that is the circularity between questioning of perception and answering of the perceived, is thus a phenomenon appearing beyond the boundary of the body as a singular being. This fact allows the concept of flesh to be extended and to be understood as an “element”, that is, as a dimension in which individual beings appear. [In Czech language.]. (shrink)

In his initial lecture course at the Collège de France, Merleau-Ponty attempted to develop a new analysis of rational thought in order to clarify its link with corporeal-perceptive life. The formulation of thought in language as the most elaborate human activity of expression explicitly takes over what we already observe in perception as the implicit and mutual reference between the perceiving subject and that which is perceived.The article reconstructs Merleau-Ponty’s argumentation, based on his preparatory notes for the lectures, and provides (...) an interpretation of the key concepts of “expression” and “body schema”. [In Czech Language]. (shrink)

[In Czech] Merleau-Ponty holds that Husserl’s descriptions of the body go beyond the conceptual framework of subject-object ontology to which his philosophy is usually thought to conform. Merleau-Ponty says of his own philosophy that it is founded on the circularity in the body; that is, on the fact that from the ontological point of view, perception and availability to be perceived, are one and the same in the body. The inseparability of these two aspects of the body he calls "flesh" (...) (chair). According to Husserl, I perceive my body such that in a certain perceived object I also co-perceive sensations roused by the perception of that object – I observe the “consequential parallel” between two series of objective and subjective phenomena. Husserl argues that the unity of the body should be descrived as a double unity, and the body as a subject-object. In this article I analyse Husserl’s example of two hands of the same body touching mutually and, following Merleau-Ponty, I attempt to show that the body can appear to itself as an object only on the basis of a differentiation of the body as a particular field of perceiving. The body as a double unity of subject and object is therefore grounded in the body as a pre-objective and pre-subjective field; that is, in flesh as Merleau-Ponty understands it. This is also the point of departure for an original conception of ontology as we find it in his later philosophy. [In Czech language.]. (shrink)

[In French]Both Patočka and Merleau-Ponty conceive the world not just as an Object, but rather as a field of an irreducible phenomenal and ontological depth. Patočka’s concept of movement and Merleau-Ponty’s concept of flesh are two concrete figures of this depth, and as such they are understood by the respective authors as that what stands at the origin of every singular being so far as it detaches itself on the ground of the world as an open totality. Nevertheless, the position (...) of the two concepts seems to be quite different in relation to the traditional categories of the metaphysics. We argue that Patočka’s concept of movement is profoundly rooted in, and dependent on, the classical oppositions, whereas Merleau-Ponty’s flesh makes it possible to understand them rather as abstractions produced by segregation from the original field of presence. In order to establish these points, we propose an interpretation of Patočka’s and Merleau-Ponty’s understanding of the concepts of horizon and world, and of course of those of movement and flesh. [In French.]. (shrink)

[In Czech] In his writings at the end of the fifties, Merleau-Ponty introduced a new semantic and expressional circuit with the concept of “visibility”, a variation on the concept of “flesh” (chair). The aim of this article is to show that a consistent interpretation of this circuit necessarily leads us to a consideration of the concept of visibility as a systematically privileged viewpoint for the interpretation of all Merleau-Ponty’s more particular discussions. The concept of visibility, or flesh, summarises Merleau-Ponty’s thesis (...) that the proper cohesion of the “horizon” or “field” is prior to that which is objectively and individually thinkable within it. Thus, Merleau-Ponty’s pivotal idea is set down not just from the phenomenological viewpoint, or in particular instances, but rather quite generally and in an ontological sense. The article offers an analysis of the lexis related to the concept of visibility, characterises Merleau-Ponty’s conception of phenomenon from its perspective and summarises its ontological consequences, using the example of two central themes i.e. the the relation between subject and object and the relation between the empirical and ideal. (shrink)

[In Czech] This article aims to explain how Merleau-Ponty’s phenomenological account of embodiment contributes to the theory and practice of physiotherapy. The mechanistic conception of the body, to which physiotherapy usually refers, assumes a universal model of its functioning and interprets its relationship to the environment causally. In fact, however, it does not allow a satisfactory explanation of the efficiency of the therapeutic methods used in practice. In contrast, Merleau-Ponty’s concept of motor intentionality points to the fact that the body (...) “understands” the practical meaning of a situation. Bodily understanding is then manifested in particular by the ability to adequately differentiate, adapt or vary motor and postural responses to environmental challenges. This change in the conception of embodiment also has important implications for understanding the therapist-patient relationship and the intervention itself. Physiotherapists should draw more on the fact that they are themselves a body and, on this basis, guide the patient’s bodily intentionality towards a more developed understanding of the practical meaning of situations. (shrink)

A review of the English translation of Merleau-Ponty's course notes from the Collège de France, The Sensible World and the World of Expression, 1953.

[This paper is written in Czech language.] The aim of the article is to re-evaluate the still-surviving anthropological trope which, in reaction to an inquiry into the essence of man, compares humans with animals and points to culture as the means by which humans complete their “deficient” nature. This motif contrasting humans with animals has been extended by A. Gehlen who characterises humans as “beings of deficiencies”. In his view, the morphological-instinctive insufficiency of the human being must be stabilised by (...) cultural institutions, i.e. complexes of habitual actions. Merleau-Ponty, however, demonstrates that bodily beings always relate to their environment in an indirect way, on the basis of certain “standards” and “norms” of interaction, which exist by way of institution. The anthropological trope confronting humans and animals thus cannot produce, as in Gehlen, a contrast between an allegedly “direct” relationship to the world in animals, and a supposedly “indirect” relationship to the world in humans. It can be meaningfully retained only if it is interpreted in a Merleau-Pontyan way, that is, as an invitation to understand the transformation of the norms of indirect interaction with the world found in animals into those found in people, that is, if viewed as a comparison of their respective institutions. (shrink)

According to metaphysical coherentism, grounding relations form an interconnected system in which things ground each other and nothing is ungrounded. This potentially viable view’s logical territory remains largely unexplored. In this paper, I describe that territory by articulating four varieties of metaphysical coherentism. I do not argue for any variety in particular. Rather, I aim to show that not all issues which might be raised against coherentism will be equally problematic for all the versions of that view, which features far (...) more nuance and diversity than is typically ascribed to it. (shrink)

Der Band enthält Beiträge von Medizinern, Juristen, Philosophen und Naturwissenschaftlern aus Estland, Polen, den Niederlanden und Deutschland zu Themen der Ethik und Wissenschaftstheorie der Medizin. Diese Beiträge sind im Rahmen des «Arbeitskreises für Ethik und Wissenschaftstheorie der Medizin in Ostmitteleuropa» entstanden, der auf einer Kooperationsvereinbarung des Interdisziplinären Zentrums für Ethik der Europa-Universität Viadrina Frankfurt (Oder) und des Instituts für Geschichte und Ethik der Medizin der Universität Halle-Wittenberg beruht. Sie befassen sich u. a. mit der Gesundheitsreform in Polen, Tschechien und Ungarn, (...) mit ethischen Problemen bei Abtreibung, HIV-Infektion, Drogenkonsum, Sterbehilfe und Gentechnik sowie dem Theorie-Praxis-Verhältnis in der Medizin. (shrink)

Representing the thinking of philosophers, psychologists, sociologists, coaches, and sports writers, these essays bring together a wide range of approaches to ...

Luitzen Egburtus Jan Brouwer founded a school of thought whose aim was to include mathematics within the framework of intuitionistic philosophy; mathematics was to be regarded as an essentially free development of the human mind. What emerged diverged considerably at some points from tradition, but intuitionism has survived well the struggle between contending schools in the foundations of mathematics and exact philosophy. Originally published in 1981, this monograph contains a series of lectures dealing with most of the fundamental topics such (...) as choice sequences, the continuum, the fan theorem, order and well-order. Brouwer's own powerful style is evident throughout the work. (shrink)

Marx’s vision of unalienated production is often thought to be subject to decisive objections. This article argues that these objections rely on a misinterpretation of Marx’s position. It provides a new interpretation of Marx’s vision of unalienated production. Unlike another well-known account, it suggests that unalienated production involves realizing oneself through providing others with the goods and services they need for their self-realization. It argues that this view is appealing and that it offers a more successful response to objections than (...) previous interpretations. In doing so, it hopes to put Marx’s concern with alienation and nonalienation back on the table. (shrink)

Conceiving of nuclear energy as a social experiment gives rise to the question of what to do when the experiment is no longer responsible or desirable. To be able to appropriately respond to such a situation, the nuclear energy technology in question should be reversible, i.e. it must be possible to stop its further development and implementation in society, and it must be possible to undo its undesirable consequences. This paper explores these two conditions by applying them to geological disposal (...) of high-level radioactive waste. Despite the fact that considerations of reversibility and retrievability have received increased attention in GD, the analysis in this paper concludes that GD cannot be considered reversible. Firstly, it would be difficult to stop its further development and implementation, since its historical development has led to a point where GD is significantly locked-in. Secondly, the strategy it employs for undoing undesirable consequences is less-than-ideal: it relies on containment of severely radiotoxic waste rather than attempting to eliminate this waste or its radioactivity. And while it may currently be technologically impossible to turn high-level waste into benign substances, GD’s containment strategy makes it difficult to eliminate this waste’s radioactivity when the possibility would arise. In all, GD should be critically reconsidered if the inclusion of reversibility considerations in radioactive waste management has indeed become as important as is sometimes claimed. (shrink)

This paper addresses theoretical challenges, still relevant today, that arose in the first decades of the twentieth century related to the concept of the organism. During this period, new insights into the plasticity and robustness of organisms as well as their complex interactions fueled calls, especially in the UK and in the German-speaking world, for grounding biological theory on the concept of the organism. This new organism-centered biology understood organisms as the most important explanatory and methodological unit in biological investigations. (...) At least three theoretical strands can be distinguished in this movement: Organicism, dialectical materialism, and holistic biology. This paper shows that a major challenge of OCB was to describe the individual organism as a causally autonomous and discrete unit with consistent boundaries and, at the same time, as inextricably interwoven with its environment. In other words, OCB had to conciliate individualistic with anti-individualistic perspectives. This challenge was addressed by developing a concept of life that included functionalist and metabolic elements, as well as biochemical and physical ones. It allowed for specifying organisms as life forms that actively delimit themselves from the environment. Finally, this paper shows that the recent return to the concept of the organism, especially in the so-called “Extended Evolutionary Synthesis,” is challenged by similar anti-individualistic tendencies. However, in contrast to its early-twentieth-century forerunner, today’s organism-centered approaches have not yet offered a solution to this problem. (shrink)

Terugblik van de bekende psychiater op zijn ontwikkeling als sannyasin.

This paper provides an analysis of the intrinsic/extrinsic distinction, as applied both to properties and to relations. In contrast to other accounts, the approach taken here locates the source of a property’s intrinsicality or extrinsicality in the manner in which that property is ‘logically constituted’, and thus – plausibly – in its nature or essence, rather than in e.g. its modal profile. Another respect in which the present proposal differs from many extant analyses lies in the fact that it does (...) not seek to analyse the ‘global’ distinction between intrinsic and extrinsic properties on the basis of the ‘local’ distinction between having a property intrinsically and having it extrinsically. Instead, the latter distinction is explicated on the basis of the former. (shrink)

In recent years, biologists and philosophers of science have argued that evolutionary theory should incorporate more seriously the idea of ‘reciprocal causation.’ This notion refers to feedback loops whereby organisms change their experiences of the environment or alter the physical properties of their surroundings. In these loops, in particular niche constructing activities are central, since they may alter selection pressures acting on organisms, and thus affect their evolutionary trajectories. This paper discusses long-standing problems that emerge when studying such reciprocal causal (...) processes between organisms and environments. By comparing past approaches to reciprocal causation from the early twentieth century with contemporary ones in niche construction theory, we identify two central reoccurring problems: All of these approaches have not been able to provide a conceptual framework that allows maintaining meaningful boundaries between organisms and environments, instead of merging the two, and integrating experiential and physical kinds of reciprocal causation. By building on case studies of niche construction research, we provide a model that is able to solve these two problems. It allows distinguishing between mutually interacting organisms and environments in complex scenarios, as well as integrating various forms of experiential and physical niche construction. (shrink)

Insight problem solving is thought to underpin creative thought as it incorporates both divergent (generating multiple ideas and solutions) and convergent (arriving at the optimal solution) thinking approaches. The current literature on schizotypy and creativity is mixed and requires clarification. An alternate approach was employed by designing an exploratory web-based study using only correlates of schizotypal traits (paranoia, dissociation, cognitive failures, fantasy proneness, and unusual sleep experiences) and examining which (if any) predicted optimal performance on an insight problem-solving task. One (...) hundred and twenty-one participants were recruited online from the general population and completed the number reduction task. The discovery of the hidden rule (HR) was used as a measure of insight. Multivariate logistic regression analyses highlighted persecutory ideation to best predict the discovery of the HR (OR = 1.05; 95% CI 1.01–1.10, p = 0.017), with a one-point increase in persecutory ideas corresponding to the participant being 5% more likely to discover the HR. This result suggests that persecutory ideation, above other schizotypy correlates, may be involved in insight problem solving. (shrink)