Starting from Marr's ideas about levels of explanation, a theory of the data structures and access processes in human memory is demonstrated on 10 tasks. Functional characteristics of human memory are captured implementation-independently. Our theory generates a multidimensional task classification subsuming existing classifications such as the distinction between tasks that are implicit versus explicit, data driven versus conceptually driven, and simple associative (two-way bindings) versus higher order (threeway bindings), providing a broad basis for new experiments. The formal language clarifies the (...) binding problem in episodic memory, the role of input pathways in both episodic and semantic (lexical) memory, the importance of the input set in episodic memory, and the ubiquitous calculation of an intersection in theories of episodic and lexical access. (shrink)

With its wealth of readily and often publicly available information about Web users’ lives, the Web has created new opportunities for conducting online research. Although digital data are easily accessible, ethical guidelines are inconsistent about how researchers should use them. Some academics claim that traditional ethical principles are sufficient and applicable to online research. However, the Web poses new challenges that compel researchers to reconsider concerns of consent, privacy and anonymity. Based on doctoral research into the investigation of online medicine (...) purchasing, this article presents a case study involving online forums, and reviews the existing ethical guidance surrounding the Web. The suggestion is that new ethical guidelines, particularly in relation to informed consent and participants’ own perceptions of what is public or private, are needed owing to the unique challenges of online research. (shrink)

Colonius suggests that, in using standard set theory as the language in which to express our computational-level theory of human memory, we would need to violate the axiom of foundation in order to express meaningful memory bindings in which a context is identical to an item in the list. We circumvent Colonius's objection by allowing that a list item may serve as a label for a context without being identical to that context. This debate serves to highlight the value of (...) specifying memory operations in set theoretic notation, as it would have been difficult if not impossible to formulate such an objection at the algorithmic level. (shrink)

Many natural and technological systems are complex, with organizational structures that exhibit characteristic patterns but defy concise description. One effective approach to analyzing such systems is in terms of repeated topological motifs. Here, we extend the motif concept to characterize the dynamic behavior of complex systems by introducing developmental motifs, which capture patterns of system growth. As a proof of concept, we use developmental motifs to analyze the developmental cell lineage of the nematode Caenorhabditis elegans, revealing a new perspective on (...) its complex structure. We use a family of computational models to explore how biases arising from the dynamics of the developmental gene network, as well as spatial and temporal constraints acting on development, contribute to this complex organization. © 2010 Wiley Periodicals, Inc. Complexity 16: 48‐57, 2011. (shrink)

Social work students in England now have to register with the General Social Care Council and ?sign up to? the codes of practice. These specify that social workers must not ?behave in a way, in work or outside work, which would call into question [their] suitability to work in social care services'. This paper describes a small and ongoing piece of doctoral research into social work students' perceptions of professional regulation. The policy context for social work regulation is outlined, including (...) the implications for social work educators and students. The paper discusses the ethical and methodological issues which arose when planning the study. In conclusion, regulation has benefits for service users and professionals, but its implementation involves difficult ethical decisions. When students' suitability is called into question, there are implications for their personal and professional identities: exploring these implications will be the focus of the next stage of the research. (shrink)

This paper suggests that Dante’s writings on language provide elements for the construction of a philosophy of language. The main emphasis is on the theoretical treatment of language in De Vulgari Eloquentia, but it also considers La Vita Nouva and Il Convivio, earlier works providing insights into the development of Dante’s views on the nature and use of language. De Vulgari Eloquentia is an extended justification for the use of a vernacular language capable of treating the worthiest topics in a (...) manner appropriate to them. Two main purposes of language are to instruct and delight. Dante shows that others must be addressed in a language they understand, but if it is to lift them, it must have a beauty and power beyond them. (shrink)

The central questions addressed in this paper are: (1) how are forms related to predication? And (2) what role do forms and predication play in the discovery and articulation of truth? The first section of the paper provides—in broad strokes—a synopsis of Plato’s account of forms. The second section considers predication in relation to forms showing that the existence and nature of forms is a necessary condition for predication, and that Plato’s account of predication is consistent with, in fact, anticipates, (...) Aristotle’s treatment of reality in the Categories. The conclusion of the paper is that forms and predication are central to philosophical hermeneutics, to the discovery and articulation of truth. (shrink)

Groups are only real, and only serve as a basis for collective action, when their members perceive them to be real. For a computational model to have analytic fidelity and predictive validity it, therefore, needs to engage with the psychological reality of groups, their internal structure, and their structuring by the social context in which they function.

IT IS NO LONGER UNUSUAL to find ethical or moral relativism defended, yet there remains some uneasiness about the position, even among its defenders. Richard Brandt, for example, who offers a version he finds "somewhat plausible," admits that he and most other philosophers "have an anti-relativist predilection, at least when we come to moral issues which are important.".

Mercier & Sperber (M&S) argue for their argumentative theory in terms of communicative abilities. Insights can be gained by extending the discussion beyond human reasoning to rodent and robot navigation. The selection of arguments and conclusions that are mutually reinforcing can be cast as a form of abductive reasoning that I argue underlies the construction of cognitive maps in navigation tasks.

The argument of this paper is that the Aristotelian analysis of justice and related concepts provides the best framework for understanding the structure and importance of justice in Dante’s Commedia. After giving a synopsis of the principle features of Aristotle’s account of justice in Book 5 of the Nicomachean Ethics, I consider a few scenes from the Inferno, the Purgatorio, and the Paradiso, showing how the punishments and rewards Dante describes are based on the Aristotelian analysis of justice. Finally, I (...) show that Dante, following Aristotle’s views on the metaphysics of the human person, recognizes that argument alone is inadequate to the task of educating the reader on the proper care of the soul, and that Dante’s effective use of images, makes the abstract Aristotelian concept of justice vivid and attractive, and its opposite repulsive. (shrink)

The argument of this paper is that the Aristotelian analysis of justice and related concepts provides the best framework for understanding the structure and importance of justice in Dante’s Commedia. After giving a synopsis of the principle features of Aristotle’s account of justice in Book 5 of the Nicomachean Ethics, I consider a few scenes from the Inferno, the Purgatorio, and the Paradiso, showing how the punishments and rewards Dante describes are based on the Aristotelian analysis of justice. Finally, I (...) show that Dante, following Aristotle’s views on the metaphysics of the human person, recognizes that argument alone is inadequate to the task of educating the reader on the proper care of the soul, and that Dante’s effective use of images, makes the abstract Aristotelian concept of justice vivid and attractive, and its opposite repulsive. (shrink)

Cui bono? Cherchez la femme! These ancient maxims offer counsel to the investigator of an unsolved murder or some inexplicable pattern of behaviour. They advise the pursuit of what has come more recently to be known as a form of lateral thinking. The puzzle may not best be solved by an intensification of the examination of the immediate data. The primary clue may lie out of sight somewhere further back. Financial advantage or sexual attraction, which does not show up as (...) a feature of the immediate situation, may be the hidden motive of the traditionally male agent's actions. When that is recognized, the otherwise inexplicable phenomena may become intelligible. (shrink)

The appearance of two new editions of the Choephoroi in 1986 has prompted me to reexamine the theatrical logic of the recognition scene. Anthony Bowen's student edition offers a curious contrast. Bowen is alert to the music of the choruses, and describes them as ‘a feast in themselves’ . He remarks with reference to the strophic verse that ‘it is surprising how well these works have come down to us’ . When he discusses the staging, however, he no longer finds (...) the text well preserved, and follows Fraenkel in disposing of the footprints. Three interpolations, a total of nine lines, have to be struck out . A. F. Garvie's scholarly edition broadly accepts the extant text, but does not – I wish to argue – yet grasp the theatrical logic of the writing. (shrink)

The central thesis of this treatment of Aristotle's philosophy of mind is that Aristotle's writings contain a coherent theory of perception which is explanatory of a variety of psychological activities such as sense perceiving, imagining, remembering, dreaming and thinking. The approach taken rejects the developmental theory of Jaeger and others, and assumes that the psychological theses found in the De Anima and the Parva Naturalia form a continuous exposition of one psychological theory.

This collection of twenty two essays, with an introduction by Ralph McInerny, is selected from papers presented to the 1999 meeting of the American Maritain Association.

This work is a critical history of ancient Greek accounts of pleasure from the pre-Socratics down to Epicurus and the early Stoics. Four natural divisions may be distinguished: The pre-Platonic background containing the didactic tradition, the physiological tradition, and the evaluative accounts of Democritus, Socrates, and Aristippus; Plato's theory and its development; Aristotle's theory, including a discussion of the views of Speusippus and Eudoxus; and, the post-Aristotelian accounts of Epicurus and the early Stoics.

Die Idee des Guten zwischen Plato und Aristoteles, of which the present work is an English translation, was first published in Heidelberg in 1978.