Neuropsychological results are increasingly cited in cognitive theories although their methodology has been severely criticised. The book argues for an eclectic approach but particularly stresses the use of single-case studies. A range of potential artifacts exists when inferences are made from such studies to the organisation of normal function – for example, resource differences among tasks, premorbid individual differences, and reorganisation of function. The use of “strong” and “classical” dissociations minimises potential artifacts. The theoretical convergence between findings from fields where (...) cognitive neuropsychology is well developed and those from the normal literature strongly suggests that the potential artifacts are not critical. The fields examined in detail in this respect are short-term memory, reading, writing, the organisation of input and output speech systems, and visual perception. Functional dissociation data suggest that not only are input systems organised modularly, but so are central systems. This conclusion is supported by findings on impairment of knowledge, visual attention, supervisory functions, memory, and consciousness. (shrink)

This paper presents a cognitive model of the planning process. The model generalizes the theoretical architecture of the Hearsay‐ll system. Thus, it assumes that planning comprises the activities of a variety of cognitive “specialists.” Each specialist can suggest certain kinds of decisions for incorporation into the plan in progress. These include decisions about: (a) how to approach the planning problem; (b) what knowledge bears on the problem; (c) what kinds of actions to try to plan; (d) what specific actions to (...) plan; and (e) how to allocate cognitive resources during planning. Within each of these categories, different specialists suggest decisions at different levels of abstraction. The activities of the various specialists are not coordinated in any systematic way. Instead, the specialists operate opportunistically, suggesting decisions whenever promising opportunities arise. The paper presents a detailed account of the model and illustrates its assumptions with a “thinking aloud” protocol. It also describes the performance of a computer simulation of the model. The paper contrasts the proposed model with successive refinement models and attempts to resolve apparent differences between the two points of view. (shrink)

The truth can be dangerous. It is because they realise this that the Roman Catholic Church forbid cremation. Cremation is, of course, theologically permissible, and in times of epidemic the Church allows it. But in normal times it is forbidden — Why? The reason is that the Church fears the influence of the image associated with it. It is difficult enough for the faithful to accept the notion of bodily resurrection after having seen a burial. But the image of the (...) whole body being consumed by flames and changing within a few minutes to a heap of ashes is an even more powerful apparent contradiction of the theological claim of bodily resurrection at the Day of Judgement. In short, instead of relying only on abstract theological argument, which very likely would not convince their flock in any case, the Church deals with this threat to faith by attacking the concrete image. (shrink)

The truth can be dangerous. It is because they realise this that the Roman Catholic Church forbid cremation. Cremation is, of course, theologically permissible, and in times of epidemic the Church allows it. But in normal times it is forbidden — Why? The reason is that the Church fears the influence of the image associated with it. It is difficult enough for the faithful to accept the notion of bodily resurrection after having seen a burial. But the image of the (...) whole body being consumed by flames and changing within a few minutes to a heap of ashes is an even more powerful apparent contradiction of the theological claim of bodily resurrection at the Day of Judgement. In short, instead of relying only on abstract theological argument, which very likely would not convince their flock in any case, the Church deals with this threat to faith by attacking the concrete image. (shrink)