Consider the concept combination ‘pet human’. In word association experiments, human subjects produce the associate ‘slave’ in relation to this combination. The striking aspect of this associate is that it is not produced as an associate of ‘pet’, or ‘human’ in isolation. In other words, the associate ‘slave’ seems to be emergent. Such emergent associations sometimes have a creative character and cognitive science is largely silent about how we produce them. Departing from a dimensional model of human conceptual space, this (...) article will explore concept combinations, and will argue that emergent associations are a result of abductive reasoning within conceptual space, that is, below the symbolic level of cognition. A tensor-based approach is used to model concept combinations allowing such combinations to be formalized as interacting quantum systems. Free association norm data is used to motivate the underlying basis of the conceptual space. It is shown by analogy how some concept combinations may behave like quantum-entangled particles. Two methods of analysis were presented for empirically validating the presence of non-separable concept combinations in human cognition. One method is based on quantum theory and another based on comparing a joint probability distribution with another distribution based on a separability assumption using a chi-square goodness-of-fit test. Although these methods were inconclusive in relation to an empirical study of bi-ambiguous concept combinations, avenues for further refinement of these methods are identified. (shrink)

We present in this article a new logical system inspired from linear logic. This system is designed in order to express causality and dynamism. The cut elimination theorem holds for this logic. Examples of applications are given.

The reflections put forward in this text concern the clinical and practical difficulties posed by the existence of patients in PVS, and the essential ethical issues raised, combining these ethical questions with practical and theoretical experience.Section 1 presents the methodology of the ethical reflection as we see it.Section 2 describes the clinical condition of patients in PVS. Section 3 develops the ethical difficulties relative to PVS from the French point of view. Section 4 illustrates the relevance of debating the ethical (...) significance of such problematic situations, whilst defending a practical position based on a philosophical conviction. Section 5 points out the limits of ethical reflection in a biomedical context, and calls for reflection closer to the source of the problems described. For a comprehensive appraisal of biomedical rationality, the final section suggests combining the bioethical debates with traditional philosophical ethical reflection so as to get a clearer understanding of the real, if limited, relevance of these debates. (shrink)

While cetaceans clearly show social learning in a wide variety of contexts, to label this as hides more than it reveals: we need a taxonomy of culture to tease apart the differences rather than hiding them in a catch-all category.

It is shown that the lattice-theoretic distributive law does not fail to hold in the two slit-experiment for the general case offinite slit widths and for a position measurement which localizes the observed particle to afinite region of the screen. Comments are made on previous and less general discussions of the case considered.