Jeffery et al. extensively and thoroughly describe how different species navigate through a three-dimensional environment. Undeniably, the world offers numerous three-dimensional opportunities. However, we argue that for most navigation tasks a two-dimensional representation is nevertheless sufficient, as physical conditions and limitations such as gravity, thermoclines, or layers of earth encountered in a specific situation provide the very elevation data the navigating individual needs.

Many edusemiotic writers have begun to closely align edusemitoics to biosemiotics; the basic logic being that, if the life process can be defined through the criterion of semiotic engagement, so can the learning process :373–387, 2006). Thus, the ecological concept of umwelt has come to be a central area of investigation for edusemiotics; allowing theorists to address learning and living concurrently, from the perspective of meaning and significance. To address the conceptual and experiential foundations of the edusemiotic perspective, this paper (...) will focus its attention on the basic semiosic processes that sustain the learner’s primary modelling system or umwelt—the world of meaning and sensory engagement that the organism is immersed in. This focus enables us to identify and explore four basic principles that an ecologically concerned edusemiotic perspective can be said to rest upon; the Iconicity Hypothesis, the Principle of Suprasubjective Relation, the Natural Learning Flow Principle, and the Continuity Principle. The identification and elaboration of these basic philosophical orientations will help establish the importance and relevance of the edusemiotic perspective for educational philosophy and theory in general. This task requires the methodological framework of Sebeok and Danesi’s Modelling Systems Theory, which; provides a biosemiotically grounded approach to understanding the diversity of modelling phenomena across all species, and; contextualizes the specific focus of this study within the broader forms of learning and knowing encompassed by a semiotic theory of learning. Hopefully such attention to the foundational doctrina of this new perspective will encourage more educational research to take what Semetsky has called the edusemiotic turn. (shrink)

Rejecting information-processing-based theory permits the merging of a top-down analysis of visual search tasks with a bottom-up analysis of brain structure and function. This reveals the true nature of the functional visual field and its precise role in the conduct of visual search tasks. The merits of such analyses over the traditional methods of the authors are described.

We extend stit logic by adding a spatial dimension. This enables us to distinguish between powers and opportunities of agents. Powers are agent-specific and do not depend on an agent’s location. Opportunities do depend on locations, and are the same for every agent. The central idea is to define the real possibility to see to the truth of a condition in space and time as the combination of the power and the opportunity to do so. The focus on agent-relative powers (...) and space-relative opportunities firmly roots effectivity of an autonomous choice making agent in a space–time picture. Our space–time view will be classically Newtonian, since we will assume relativistic phenomena do not play a role in agentive effectivity. We show how our semantics naturally distinguishes between different kinds of histories; histories that reflect real possibilities and histories that reflect counterfactual possibilities. Furthermore, we discuss how the spatial picture sheds light on conceptual problems plaguing the central stit property of ‘independence of agency’. At several points in the article we will emphasise and defend the differences with Belnap’s theory of agency in relativistic branching space–times. (shrink)

The objective of this paper is to analyse the concept of skilful action underlying the studies of perceptual experience, especially the visual one, from the perspective of the theory of direct perception. The problem we propose to investigate can be formulated as follows: what are the possible contributions of the concept of affordance to understand the nature of skilful actions generally attributed to processes resulting from internal representations or mental models? In particular, we will try to investigate to what extent (...) the concept of social affordance can help to understand aspects of complex skilful actions that involve capacities considered as deriving from the possession of a Theory of Mind. We will try to show that the perspective of the ecological psychology of direct perception allows to understand aspects of human skilled action, especially of a collaborative nature, from a conception of perceptual experience that involves information intrinsically significant. (shrink)

The article is based on research conducted at the actual radiology department. It presents a range of descriptions and analyses of concrete operations performed by radiologists during their daily professional routine. After careful ethnographic observations, phenomenological analysis is employed with a view to examining the enactive cognition in the radiologist’s “life-world”. The paper uses both ethnography and phenomenology in order to reveal the essential regularities and sedimentations of everyday radiological processes, and the “everyday background” of certain scientific-cognitive operations. The method (...) of research includes “enactive proofs”— observations and analysis of the externalization of a radiologist’s professional memory through the enaction of medical imaging and imageconsciousness. The findings of this research have much to offer to both philosophy and radiological praxis. While the observations strongly support the development of enactive phenomenology, critique of representationalism, primacy of inference in cognition, and shared intentions, they also provide insight into concrete operations in coping with radiology’s paraphernalia, habituality, the origin of mistakes, multilayered communication, and improving professional praxis. (shrink)

[Comment, pp 759-780] Lockhead (1992) [Target Article] is undoubtedly right to attack so-called intensity scaling or the estimation of subjective magnitudes as an invalid perversion of tasks requiring quantitative judgments of aspects of objects, stuffs, and situations. He goes too far, however, in claiming that feature scales do not exist... ... A perceived physical pattern (sensory feature or channel) and the cognitive process that integrates it with its context are characterized by determining to which particular combination of specified stimulus patterns (...) the response is most sensitive. This is the principle of causal system analysis that is at the basis of all theory-building science. (shrink)

Name der Zeitschrift: Cognitive Linguistics Jahrgang: 26 Heft: 4 Seiten: 657-696.

A shift from a metaphysical framework of substance to one of process enables an integrated account of the emergence of normative phenomena. I show how substance assumptions block genuine ontological emergence, especially the emergence of normativity, and how a process framework permits a thermodynamic-based account of normative emergence. The focus is on two foundational forms of normativity, that of normative function and of representation as emergent in a particular kind of function. This process model of representation, called interactivism, compels changes (...) in many related domains. The discussion ends with brief attention to three domains in which changes are induced by the representational model: perception, learning, and language. (shrink)