Proponents of enactivism should be interested in exploring what notion of action best captures the type of action–perception link that the view proposes, such that it covers all the aspects in which our doings constitute and are constituted by our perceiving. This article proposes and defends the thesis that the notion of sensorimotor dependencies is insufficient to account for the reality of human perception and that the central enactive notion should be that of perceptual practices. Sensorimotor enactivism is insufficient because it has no traction on socially dependent perceptions (SDPs), which are essential to the role and significance of perception in our lives. Since the social dimension is a central desideratum in a theory of human perception, enactivism needs a notion that accounts for such an aspect. This article sketches the main features of the Wittgenstein-inspired notion of perceptual practices as the central notion to understand perception. Perception, I claim, is properly understood as woven into a type of social practices that includes food, dance, dress, and music. More specifically, perceptual practices are the enactment of culturally structured, normatively rich techniques of commerce of meaningful multi- and intermodal perceptible material. I argue that perceptual practices explain three central features of SDP: attentional focus, aspects’ salience, and modal-specific harmony-like relations.

Key words: enactivism, perception, practices, culture, intersubjectivity, pragmatism

Proponents of enactivism should be interested in exploring what notion of action best captures the type of action–perception link that the view proposes, such that it covers all the aspects in which our doings constitute and are constituted by our perceiving. This article proposes and defends the thesis that the notion of sensorimotor dependencies is insufficient to account for the reality of human perception and that the central enactive notion should be that of perceptual practices. Sensorimotor enactivism is insufficient because it has no traction on socially dependent perceptions (SDPs), which are essential to the role and significance of perception in our lives. Since the social dimension is a central desideratum in a theory of human perception, enactivism needs a notion that accounts for such an aspect. This article sketches the main features of the Wittgenstein-inspired notion of perceptual practices as the central notion to understand perception. Perception, I claim, is properly understood as woven into a type of social practices that includes food, dance, dress, and music. More specifically, perceptual practices are the enactment of culturally structured, normatively rich techniques of commerce of meaningful multi- and intermodal perceptible material. I argue that perceptual practices explain three central features of SDP: attentional focus, aspects’ salience, and modal-specific harmony-like relations.

Key words: enactivism, perception, practices, culture, intersubjectivity, pragmatism.

In this article, the author examines Colin Grant’s recent criticism of the so-called “interaction paradigm” and Jürgen Habermas’s universal pragmatics. Grant’s approach, which is presented as an open challenge to communication theories grounded in philosophical conceptions of communality and dialogue, can be construed as an exemplar of a radical constructivist approach to vital questions of contingency and incommensurability in communication studies. In response, the author outlines a classical pragmatist approach to the problem areas identified by Grant, with the aim of outlining how a pragmatist outlook can offer promising theoretical alternatives to universal pragmatics and radical constructivism. It is argued that moderate Peircean pragmatism, appropriately interpreted, can provide a philosophical platform capable of addressing issues of contingency, uncertainty, and autonomy in communication theory without succumbing to incommensurabilism, traditional objectivism, or nominalistic individualism.

Excerpt: Phenomenology was a European philosophy that was a parallel development to American pragmatism. It will be argued that personal construct psychology may fruitfully be seen as a phenomenological approach to the person and that its methods for investigating the experience of individuals mirror and indeed extend phenomenology’s reach. It will also be contended that personal construct psychology is enriched by the insights of other phenomenologists, in particular, those of Merleau-Ponty (1962/1945).

Excerpt: The psychology of personality is now dominated by the psychometric tradition of individual dif-ferences: how people differ along a number of specified dimensions. This, of course, is an objec-tivist approach that takes an external perspective on the person. Personal construct psychology (PCP) is a phenomenological approach to the person that focuses instead on making sense of people by attempting to understand the world from their individual perspectives.

Key words: personality, personal construct, constructivism, pragmatism, phenomenology, hermeneutics, choice, agency

Open peer commentary on the target article “Arguments Opposing the Radicalism of Radical Constructivism” by Gernot Saalmann. First paragraph: Although supportive of many of the positions taken by constructivists, pragmatists, and instrumentalists against “metaphysical realism,” the author Gernot Saalmann mounts arguments against all epistemological radicalisms, in favor of a critical realism. Ultimately he seeks “development of an antimetaphysical, non-objectivist epistemology” rooted in pragmatism.

Problem: There is currently a great deal of mysticism, uncritical hype, and blind adulation of imaginary mathematical and physical entities in popular culture. We seek to explore what a radical constructivist perspective on mathematical entities might entail, and to draw out the implications of this perspective for how we think about the nature of mathematical entities. Method: Conceptual analysis. Results: If we want to avoid the introduction of entities that are ill-defined and inaccessible to verification, then formal systems need to avoid introduction of potential and actual infinities. If decidability and consistency are desired, keep formal systems finite. Infinity is a useful heuristic concept, but has no place in proof theory. Implications: We attempt to debunk many of the mysticisms and uncritical adulations of Gödelian arguments and to ground mathematical foundations in intersubjectively verifiable operations of limited observers. We hope that these insights will be useful to anyone trying to make sense of claims about the nature of formal systems. If we return to the notion of formal systems as concrete, finite systems, then we can be clear about the nature of computations that can be physically realized. In practical terms, the answer is not to proscribe notions of the infinite, but to recognize that these concepts have a different status with respect to their verifiability. We need to demarcate clearly the realm of free creation and imagination, where platonic entities are useful heuristic devices, and the realm of verification, testing, and proof, where infinities introduce ill-defined entities that create ambiguities and undecidable, ill-posed sets of propositions. Constructivist content: The paper attempts to extend the scope of radical constructivist perspective to mathematical systems, and to discuss the relationships between radical constructivism and other allied, yet distinct perspectives in the debate over the foundations of mathematics, such as psychological constructivism and mathematical constructivism.

Key words: Foundations of mathematics, verificationism, finitism, Platonism, pragmatism, Gödel’s Proof, Halting Problem, undecidability, consistency, computability, actualism

Embodied Cognition represents the most important news in cognitive psychology in the last twenty years. The basis of its research program is the idea that cognitive processes depend, mirror, and are influenced by bodily control systems. A whole class of novel perspectives entered into the psychologists’ agenda only after the emergence and success of EC. In the paper we will deal with some of the main topics debated within EC, from the discussion on the role of representation, to the relationship with enactivism, with functionalism and with the extended mind view. Against an interpretation according to which EC is simply an evolution of the classical cognitivist program, we will focus on the aspects that highlight crucial discontinuities with it, suggesting instead that the EC perspective is indebted to previous theoretical traditions such as American pragmatism, ecological psychology and phenomenology. In the present paper we will discuss some of the most important achievements of EC in different areas of experimental research, from the study of affordances to that of the bodily experience, from the investigation on emotions to that on language. Our aim is to force the Italian public, particularly recalcitrant to EC, to critically reflect on the debts to previous traditions. Relevance: The paper reviews embodied theories with a special focus on enactivist approaches.

Linguistics and semiotics traditionally assert the view that communication presupposes signs. Integrational linguistics challenges this notion by refuting the first- order ontological status of signs and s emiological codes. Yet if communication does not depend on pre-established signs, then how do es semiosis proceed? And what is the basis for the intuitively acceptable notion that codes do exist as socially carried structures among living beings? In this article I present an integrational account of semiosis based on the suggestion that sign-making is a perceptual activity. I draw on William James’ concept of human experience to expound Roy Harris’ claims for the radical indeterminacy of the sign, for contextualization, and for the process of integration. In closing, I consider the role that mental associations, for example, those between language sounds and concepts, play in communicative activity.

Key words: semiosis, integrationism, pragmatism, perception, contextualization, radical indeterminacy of the sign

A widely cited roadblock to bridging ecological psychology and enactivism is that the former identifies with realism and the latter identifies with constructivism, which critics charge is subjectivist. A pragmatic reading, however, suggests non-mental forms of constructivism that simultaneously fit core tenets of enactivism and ecological realism. After advancing a pragmatic version of enactive constructivism that does not obviate realism, I reinforce the position with an empirical illustration: Physarum polycephalum, a communal unicellular organism that leaves slime trails that form chemical barriers that it avoids in foraging explorations. Here, environmental building and sensorimotor engagement are part of the same process with P. polycephalum coordinating around self-created, affordance-bearing geographies, which nonetheless exist independently in ways described by ecological realists. For ecological psychologists, affordances are values, meaning values are external to the perceiver. I argue that agent-enacted values have the same status and thus do not obviate ecological realism or generate subjectivism. The constructivist-realist debate organizes around the emphasis that enactivists and ecological theorists respectively place on the inner constitution of organisms vs. the structure of environments. Building on alimentary themes introduced in the P. polycephalum example and also in Gibson’s work, I go on to consider how environment, brain, visceral systems, and even bacteria within them enter perceptual loops. This highlights almost unfathomable degrees of mutually modulating internal and external synchronization. It also shows instances in which internal conditions alter worldly configurations and invert values, in Gibson’s sense of the term, albeit without implying subjectivism. My aim is to cut across the somatic focus of enactive constructivism and the external environment-oriented emphasis of ecological realism and show that enactivism can enrich ecological accounts of value.

Key words: affect and value, central and peripheral nervous system, ecological psychology, enactivism, gut microbiome, pragmatism and phenomenology, physarum polycephalum, realism vs. constructivism.