Despite its computational elegancy, Jackendoff's proposal to reconcile competing approaches by postulating a parallel architecture for phonological, syntactic, and semantic modules is disappointing. We argue that it is a pragmatic version of the leading module which Jackendoff would probably prefer, but which he does not explicitly acknowledge. This internal conflict leads to several shortcomings and even distortions of information presented in the book.

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The results of two experiments, in which participants solved constructive tasks of the puzzle type, are reported. The tasks were solved by two partners who shared the same visual environment hut whose knowledge of the situation and ability to change it to reach a solution were different. One of the partners — the "expert" — knew the solution in detail but had no means of acting on this information. The second partner — the "novice " — could act to achieve (...) the goal, but knew very little about the solution. The partners were free to communicate verbally. In one third of the trials of the first experiment, in addition to verbal communication, the eye fixations of the expert were projected onto the working space of the novice. In another condition the expert could use a mouse to show the novice relevant parts of the task configuration. Both methods of facilitating the 'joint attention' state of the partners improved their performance. The nature of the dialogues as well as the parameters of the eye movements changed. In the second experiment the direction of the gaze-position data transfer was reversed, from the novice to the expert. This also led to a significant increase in the efficiency of the distributed problem solving. (shrink)

Three experiments investigated level of processing effects on a variety of direct and indirect memory tasks, in the context of a processing theory of dissociations. Subjects studied words in five encoding conditions and received one of ten memory tests. In Experiment 1, four tests previously classified as conceptual showed a robust LOP effect, as did a direct perceptual test of graphemic cued recall. An indirect perceptual word fragment completion test was unaffected by LOP. Experiment 2 showed that a new indirect (...) version of a graphemic cued test was not affected by LOP. In Experiment 3, guided by a generation/recognition model, we constructed three new direct tests in which subjects identified words that were graphemically, phonologically, or semantically similar to studied words. The three tests differed in their sensitivity to study conditions, but LOP had no effect in any case, despite the involvement of deliberate conscious recollection. Contemporary explanatory frameworks couched as dichotomies do not provide an adequate account of the results. It seems necessary instead to specify the types of information activated by each encoding condition, the types of information required by each test, and how encoding and retrieval processes are modified by task instructions. (shrink)

The sensorimotor account of perception is akin to Gibsonian direct realism. Both emphasize external properties of the world, challenging views based on the analysis of internal visual processing. To compare the role of distal and retinotopic parameters, distractor effect – an optomotor reaction of midbrain origin – is considered. Even in this case, permanence in the environment, not on the retina, explains the dynamics of habituation.

Eye movements play a variety of roles in perception, cognition, and communication. The roles are revealed by the duration of fixations reflecting the quality of processing in the first line. We describe possible roles of eye fixations in different temporal diapasons. These forms of processing may be specific to sensorimotor coordinations. Any generalization to other domains should be cautious.

While sharing the author's interest in the development of an action-based framework for memory research, I think the present version is neither new nor particularly productive. More differentiation is needed to describe memory functioning in a variety of domains and on the many levels of activity regulation. Above all, Glenberg's proposals seem to contradict empirical data.

We identify two aspects of the problem of maintaining perceptual stability despite an observer's eye movements. The first, visual direction constancy, is the (egocentric) stability of apparent positions of objects in the visual world relative to the perceiver. The second, visual position constancy, is the (exocentric) stability of positions of objects relative to each other. We analyze the constancy of visual direction despite saccadic eye movements.Three information sources have been proposed to enable the visual system to achieve stability: the structure (...) of the visual field, proprioceptive inflow, and a copy of neural efference or outflow to the extraocular muscles. None of these sources by itself provides adequate information to achieve visual direction constancy; present evidence indicates that all three are used.Our final question concerns how information processing operations result in a stable world. The three traditionally suggested means have been elimination, translation, or evaluation. All are rejected. From a review of the physiological and psychological evidence we conclude that no subtraction, compensation, or evaluation need take place. The problem for which these solutions were developed turns out to be a false one. We propose a “calibration” solution: correct spatiotopic positions are calculated anew for each fixation. Inflow, outflow, and retinal sources are used in this calculation: saccadic suppression of displacement bridges the errors between these sources and the actual extent of movement. (shrink)

Is there a limit to the legitimate demands of morality? In particular, is there a limit to people's responsibility to promote the well-being of others, either directly or via social institutions? Utilitarianism admits no such limit, and is for that reason often said to be an unacceptably demanding moral and political view. In this original new study, Murphy argues that the charge of excessive demands amounts to little more than an affirmation of the status quo. The real problem with utilitarianism (...) is that it makes unfair demands on people who comply with it in our world of nonideal compliance. Murphy shows that this unfairness does not arise on a collective understanding of our responsibility for others' well being. Thus, according to Murphy, while there is no general problem to be raised about the extent of moral demands, there is a pressing need to acknowledge the collective nature of the demands of beneficence. (shrink)

Om ironiens funktion i Søren Kierkegaards forfatterskab belyst ud fra Kierkegaards disputats om ironien.

Unit I. Fundamental characteristics of the common law. The source of law -- The jury -- The adversary system of trial -- Retroactivity: a return to stare decisis -- Unit II. The courts and their jurisdiction. Court systems in the United States -- Court system in England -- Unit III. Constitutional law. Judicial review -- Equal protection -- Freedom of speech -- Appendix I. Constitution of the United States -- Appendix II. Table of Supreme Court cases -- Appendix III. Common (...) case citations. (shrink)

Gegenstand der Erörterung ist die Offenlegung des faktischen und potentiellen Ethikbezugs von Technik. Grundlegend für jede Ethik ist ein je bestimmtes Verständnis des Menschen und seiner Wirklichkeit. Diese prinzipielle Positionalität ist gegenüber diskurs- und verfahrensethischen Ansätzen ebenso festzuhalten wie gegenüber utilitaristischen Nivellierungen grundlagentheoretischer Fragen. Die vorliegende Untersuchung aus evangelischer Perspektive zeigt anhand der Analyse zweier technikphilosophischer Konzeptionen der Gegenwart (G. Ropohl, W. Ch. Zimmerli) die Relevanz von Technikethik nicht nur für Techniker, sondern bezüglich menschlichen Handelns im allgemeinen.

Iyengar Yoga Wisdom & Practice" is a practical and an inspiring anthology of Iyengar's insights into yoga, life and the path to peace and happiness. Yoga practice lies at the heart of the book, and it is illustrated with over 60 new step-by-step sequences of yoga postures specially shot in India and accompanied by Iyengar's illuminating observations on technique, their significance, and their benefits. This book not only presents Iyengar's practical advice on how to perform key yoga postures, but also (...) draws on a wide range of other material taken from interviews and world lecture tours, to the many texts Iyengar has written about yoga and about his own life's journey. (shrink)

There are various equivalent formulations of the Church-Turing thesis. A common one is that every effective computation can be carried out by a Turing machine. The Church-Turing thesis is often misunderstood, particularly in recent writing in the philosophy of mind.