Route memory is frequently assessed in virtual environments. These environments can be presented in a fully controlled manner and are easy to use. Yet they lack the physical involvement that participants have when navigating real environments. For some aspects of route memory this may result in reduced performance in virtual environments. We assessed route memory performance in four different environments: real, virtual, virtual with directional information (compass), and hybrid. In the hybrid environment, participants walked the route outside on an open (...) field, while all route information (i.e., path, landmarks) was shown simultaneously on a handheld tablet computer. Results indicate that performance in the real life environment was better than in the virtual conditions for tasks relying on survey knowledge, like pointing to start and end point, and map drawing. Performance in the hybrid condition however, hardly differed from real life performance. Performance in the virtual environment did not benefit from directional information. Given these findings, the hybrid condition may offer the best of both worlds: the performance level is comparable to that of real life for route memory, yet it offers full control of visual input during route learning. (shrink)

This volume collects papers that were presented at the 34th International Ludwig Wittgenstein Symposium 2011 in Kirchberg am Wechsel, Austria. They focus on five key debates in contemporary epistemology: Does the term "to know" vary its meaning according to features of the contexts in which it is uttered? What role may "epistemic virtues" play in our cognitive activities? What is the surplus value of having knowledge instead of mere true belief? What is the structure and significance of testimonial knowledge and (...) belief? And when is disagreement rational, especially if it occurs among "epistemic peers"? In addition, a section is devoted to novel discussions of the work of Wittgenstein. Papers by A. Beckermann, E. Brendel, W. Davis, C. Elgin, S. Goldberg, J. Greco, A. Kemmerling, H. Kornblith, M. Solomon, M. Williams, and many others. (shrink)

Background This article describes the issues encountered when designing a study to evaluate recruitment of minority ethnic groups into clinical cancer research in order to monitor adherence to the principles for good practice set out in the Department of Health, Research Governance Framework, England. Methods (i) A review of routine data sources to determine whether their usefulness as a source of data on prevalence of cancer in the population by ethnic category. (ii) A local case study at one hospital trust (...) to ascertain whether the ethnicity of cancer trial participants was representative of admitted cancer patients. Results (i) The lack of a comparator population makes it problematic to assess recruitment levels by ethnic group in clinical research. (ii) The odds of being in a trial were 30% lower for a member of a minority ethnic group compared to a white cancer patient after adjusting for disease, age and gender, OR 0.70 (0.53 to 0.94). These results differed for each ethnic group; Asian patients did not appear under-represented while Black and Chinese did so. However, there are important caveats to the findings based on the limited recording of ethnicity. Conclusions The lack of available data on the ethnicity of participants in clinical research and the prevalence of cancer in the population according to ethnicity makes it difficult to design a study to monitor representation of minority ethnic groups. This information is necessary to assess adherence to the Research Governance Framework principle that research evidence reflects the diversity of the population. (shrink)

What kind of Theory of Music and Theory of Metric was taught to the young Pindar or the young Sophocles? So far are we from an answer to this question that we do not even know how far extra study was necessary, or usual, for the professional poet as compared with the ordinary educated Greek citizen. The interdependence of music and metric in lyric poetry gave complexity to the word-rhythms but kept the study of music, the subordinate partner, theoretically simple. (...) Doubtless by the time the young poet had learnt by heart the words of past masters of lyric verse, sung or accompanied them on the lyre, and danced them in choir or κ⋯μος, he had absorbed by practice and somewhat rule-of-thumb methods of training a great deal of the τ⋯χενη which his calling would require. He would have to learn, in common with the χοροδιδ⋯σκαλος, how to read and write a simple score, and so he must know the symbols of pitch in such scales as were then in use. The notation of arsis and thesis may have been required too, and if we knew that this was so, and how he was taught to apply it, we might be in a much better position to assess the kind of theory he learnt. But of one thing we may be sure: genius apart, it was his practical training, as performer and spectator, rather than theoretical teaching which gave his ear its cunning and technical skill to compose new rhythms. (shrink)

Dactylo-Epitrite has established itself in a privileged position among choral lyric metres, since the greater volume of material and the greater regularity of its component units have encouraged a more careful study, and closely reasoned controversies have arisen and been resolved over its structure. Other kinds of Pindaric metre have for the most part been analysed in a hit-or-miss spirit, and arbitrary schemes have been produced of which rarely are two alike for the same poem, yet little attempt has been (...) made to base any preference upon a theory. (shrink)