Most of current theoretical analyses on biological functions can be classified as etiological or dispositional, depending on how they deal with the teleological dimension. In this paper, we propose a critical survey of these two perspectives, and we argue that some recent studies have set the basis of a new approach which grounds the teleological dimension of functional attributions in the organizational properties of living systems. We outline a new proposal within this new approach, based on an interpretation of living (...) systems as organized self-maintaining systems. (shrink)

The term ‘manipulation’ is frequently employed but rarely discussed or defined in psychiatric circles. This paper reviews previous conceptual analyses of the term by philosophers and psychiatrists, and examines its use in ordinary discourse. A series of characteristics which comprise the conceptual core of the term when it is unambiguously applied in interpersonal settings are proposed. Manipulation is contrasted with other behavior control methods such as rational persuasion and coercion, with emphasis on the role played by deception and the communicative (...) context in which the manipulative transaction occurs. It is argued that manipulative behavior is fundamentally intentional, and the usefulness of the concept of ‘unconscious manipulation’ is questioned. Though the proposal that Manipulative Personality Disorder be formally recognized as a new diagnostic category is rejected, it is urged that the concept of manipulation receive wider attention and discussion within the mental health community. (shrink)

A frequent objection to the fine-tuning argument has been that although certain necessary conditions for life were admittedly exceedingly improbable, still, the many possible alternative sets of conditions were all equally improbable, so that no special significance is to be attached to the realization of the conditions of life. Some authors, however, have rejected this objection as fallacious. The object of this paper is to state the objection to the fine-tuning argument in a more telling form than has been done (...) hitherto, and to meet the charge of fallacy. (shrink)

The requirement of gauge invariance for the Schwinger-DeWitt equations, interpreted as a manifestly covariant quantum theory for the evolution of a system in spacetime, implies the existence of a five-dimensional pre-Maxwell field on the manifold of spacetime and “proper time” τ. The Maxwell theory is contained in this theory; integration of the field equations over τ restores the Maxwell equations with the usual interpretation of the sources. Following Schwinger's techniques, we study the Green's functions for the five-dimensional hyperbolic field equations (...) for both signatures ± [corresponding to O(4, 1) or O(3, 2) symmetry of the field equations] of the proper time derivative. The classification of the Green's functions follows that of the four-dimensional theory for “massive” fields, for which the “mass” squared may be positive or negative, respectively. The Green's functions for the five-dimensional field are then given by the Fourier transform over the “mass” parameter. We derive the Green's functions corresponding to the principal part ΔP and the homogeneous function Δ 1 ; all of the Green's functions can be expressed in terms of these, as for the usual field equations with definite mass. In the O(3, 2) case, the principal part function has support for x2⩾τ2, corresponding to spacelike propagation, as well as along the light cone x2=0 (for τ=0). There can be no transmission ofinformation in spacelike directions, with this propagator, since the Maxwell field, obtained by integration over τ, does not contain this component of the support. Measurements are characterized by such an integration. The spacelike field therefore can dynamically establish spacelike correlations. (shrink)

Open peer commentary on the article “Design Research as a Variety of Second-Order Cybernetic Practice” by Ben Sweeting. Upshot: Based on Sweeting’s central question of what design can bring to cybernetics, this commentary extends and adds further depth to the target article. Aspects discussed include the nature of practice in relation to design, the introduction of designerly ways of acting and thinking through acting to cybernetics, and the re-introduction of material experimentation typical of early cybernetics.

Context: Structural design education in architecture is typically conceived as a scientific subject taught in a lecture format and based on a transactional view of learning. This approach misses opportunities to contribute to and integrate with design-studio-based architectural education. Problem: How can radical constructivism inform a design-based pedagogy of structural design in the context of large cohorts of Chinese learners? Method: The paper outlines how radical constructivist and second order cybernetic perspectives are reflected in an alternative educational approach to structural (...) design. This approach encourages students’ individual learning while negotiating constraints deriving from large cohorts as well as the educational expectations of Chinese learners. Results: Teaching outcomes as well as students’ comments show successes in engaging students in adopting a more personal and active attitude in their learning. Students appreciate and praise learning grounded in experience as well as collaborative, peer-led learning. Challenges remain in establishing a more dialogical learning situation and in supporting individual students’ learning in large student cohorts. Implications: Limitations arise from the constraints imposed by large cohorts, limited manpower and an institutional preference for teaching towards written examinations. The research and teaching development presented are ongoing. This paper may inform educators in the fields of architecture and engineering as well as, more generally, educators who seek to develop their teaching based on a radical constructivist epistemology in the context of large cohorts. Constructivist content: The teaching approach presented links a radical constructivist perspective based on Ernst von Glasersfeld’s work with second-order cybernetics in the context of design-based education. The paper discusses challenges and opportunities for this approach in the context of large cohorts of Chinese learners. (shrink)

Upshot: Responding to and further developing the points raised by the open peer commentaries, I discuss a range of themes, including possible roles of lecture-based teaching in a radical constructivist approach to education, approaches to the teaching of large cohorts in a radical constructivist manner, the role of assessment in students’ learning experiences, the distinction of “models of” student learning, contrasted with “models for” student learning, the distinction of literal conversation from an atmosphere conducive to conversation, and the use of (...) design-based tasks to support and encourage students’ individual conceptual constructing. (shrink)

Originally published in 1988, M.C. Dillon's classic study of Merleau-Ponty is now available in a revised second edition containing a new preface and a new chapter on "Truth in Art." Dillon's thesis is that Merleau-Ponty has developed the first genuine alternative to ontological dualism seen in Western philosophy. From his early work on the philosophical significance of the human body to his later ontology of flesh, Merleau-Ponty shows that the perennial problems growing out of dualistic conceptions of mind and body, (...) subject and object, immanence and transcendence can be resolved within the framework of a new way of thinking based on the exemplar of the worldly embodiment of thought. (shrink)

have recently provided a compelling demonstration of enhanced attentional control under post-hypnotic suggestion. Using the classic color-word interference paradigm, in which the task is to ignore a word and to name the color in which it is printed (e.g., RED in green, say ''green''), they gave a post-hypnotic instruction to participants that they would be unable to read. This eliminated Stroop interference in high suggestibility participants but did not alter interference in low suggestibility participants. replicated this pattern and further demonstrated (...) that it is not due to a visual strategy (such as blurring or looking at a different location). As a historical footnote, we describe a ''case study'' from 18 years ago in which we observed the same result using a hypnotic instruction to a single highly suggestible individual that he could not read. The elimination of Stroop interference has important implications for both the study of attention and the study of hypnosis. (shrink)