Lang, B. Philosophy and the manners of art.--Hofstadter, A. Freedom, enownment, and philosophy.--Mehta, J. L. A stranger from Asia.--Fox, D. A. A passage past India.--Rucker, D. Philosophy and the constitution of Emerson's world.--Schneider, H. W. The pragmatic movement in historical perspective.--Barnes, H. E. Reflections on myth and magic.--Cauvel, J. The imperious presence of theater.--Seay, A. Musical conservatism in the fourteenth century.--Hochman, W. R. The enduring fascination of war.--Davenport, M. M. J. Glenn Gray and the promise of wisdom.
Ramsey et al. attempt to clarify methodological issues for identifying innovative behaviour. Their effort is seriously weakened by an underlying presumption that the behavior of primates is generally learned and that of non-primates is generally This presumption is based on a poor grasp of the non-primate literature and a flawed understanding of how learned behaviour is genetically assimilated.
Reinforcement learning (RL) models of decision-making cannot account for human decisions in the absence of prior reward or punishment. We propose a mechanism for choosing among available options based on goal-option association strengths, where association strengths between objects represent previously experienced object proximity. The proposed mechanism, Goal-Proximity Decision-making (GPD), is implemented within the ACT-R cognitive framework. GPD is found to be more efficient than RL in three maze-navigation simulations. GPD advantages over RL seem to grow as task difficulty is increased. (...) An experiment is presented where participants are asked to make choices in the absence of prior reward. GPD captures human performance in this experiment better than RL. (shrink)
We use the Newell Test as a basis for evaluating ACT-R as an effective architecture for cognitive engineering. Of the 12 functional criteria discussed by Anderson & Lebiere (A&L), we discuss the strengths and weaknesses of ACT-R on the six that we postulate are the most relevant to cognitive engineering.
The age-old maxim of scientists whose work has resulted in deadly or dangerous technologies is: scientists are not to blame, but rather technologists and politicians must be morally culpable for the uses of science. As new technologies threaten not just populations but species and biospheres, scientists should reassess their moral culpability when researching fields whose impact may be catastrophic. Looking at real-world examples such as smallpox research and the Australian “mousepox trick”, and considering fictional or future technologies like Kurt Vonnegut’s (...) “ice-nine” from Cat’s Cradle, and the “grey goo” scenario in nanotechnology, this paper suggests how ethical principles developed in biomedicine can be adjusted for science in general. An “extended moral horizon” may require looking not just to the effects of research on individual human subjects, but also to effects on humanity as a whole. Moreover, a crude utilitarian calculus can help scientists make moral decisions about which technologies to pursue and disseminate when catastrophes may result. Finally, institutions should be devised to teach these moral principles to scientists, and require moral education for future funding. (shrink)
'Critical Management Studies', or 'CMS', has emerged over the last ten years as the term to describe a diverse group of work that has adopted a critical or questioning approach to the traditional concerns of Management Studies. In this time, CMS has come to exert an increasing influence in Management and Management Studies, and while it has prompted fierce debate about its validity and use, there is no doubt that the rapidly growing interest in CMS has produced a vibrant and (...) exciting body of work. -/- Christopher Grey and Hugh Willmott, leading authorities in this area, have collected together seventeen readings which reflect these developments, and show why CMS has become an important field of research. The book is divided into four sections, 'Anticipating CMS', looking at some of the roots of CMS, 'Studying Management Critically', 'Critical Studies of Management', and 'Assessing CMS', examining some of the internal and external critical discussions of CMS. -/- Each reading and its significance is introduced by the editors, and in their introduction to the Reader, they reflect more broadly on the history of CMS. In particular, they consider its institutionalization, both in terms of its becoming an identifiable body of work or approach, and its institutional context within business schools, and indeed what it means to produce a Reader of critical work. -/- As an assessment of CMS, the Reader will be of interest to academics, researchers, and students of Management Studies. As an introduction to CMS, the book will prove invaluable to students taking courses requiring familiarity with the CMS literature. -/- Includes work by: -/- Paul S. Adler, Mats Alvesson, P. D. Anthony, James R. Barker, Loren Baritz, Stewart Clegg, Bill Cooke, Stanley Deetz, David Dunkerley, Christopher Grey, Heather Hopfl, David Knights, Richard Marsden, C Wright Mills, Martin Parker, Rosemary Pringle, Paul Thompson, Barbara Townley, Hugh Willmott, and Edward Wray-Bliss. (shrink)
Multimodal brain imaging data have shown increasing utility in answering both scientifically interesting and clinically relevant questions. Each brain imaging technique provides a different view of brain function or structure, while multimodal fusion capitalizes on the strength of each and may uncover hidden relationships that can merge findings from separate neuroimaging studies. However, most current approaches have focused on pair-wise fusion and there is still relatively little work on N-way data fusion and examination of the relationships among multiple data types. (...) We recently developed an approach called “mCCA+jICA" as a novel multi-way fusion method which is able to investigate the disease risk factors that are either shared or distinct across multiple modalities as well as the full correspondence across modalities. In this paper, we applied this model to combine resting state fMRI (amplitude of low-frequency fluctuation, ALFF), grey matter density (GM) and DTI (fractional anisotropy, FA) data, in order to elucidate the abnormalities underlying schizophrenia patients (SZs, n=35) relative to healthy controls (HCs, n=28). Both modality-common and modality-unique abnormal regions were identified in SZs, which were then used for successful classification for 7 modality-combinations, showing the potential for a broad applicability of the mCCA+jICA model and its results. In addition, a pair of GM-DTI components showed significant correlation with the positive symptom subscale of Positive and Negative Syndrome Scale (PANSS), suggesting that gray matter density changes in default model network along with white matter disruption in anterior thalamic radiation are associated with increased positive PANSS. Findings suggest the DTI anisotropy changes in frontal lobe may relate to the corresponding functional/structural changes in prefrontal cortex and superior temporal gyrus that are thought to play a role in the clinical expression of schizophrenia. (shrink)
Television medical dramas sometimes depict medical professionalism and bioethical issues, but their nature and extent are unclear. The authors systematically analysed the bioethical and professionalism content of one season each of Grey's Anatomy and House M.D., two of the most popular current television medical dramas. The results indicate that these programmes are rife with powerful portrayals of bioethical issues and egregious deviations from the norms of professionalism and contain exemplary depictions of professionalism to a much lesser degree.
Age-related declines in processing speed are hypothesized to underlie the widespread changes in cognition experienced by older adults. We used a structural covariance approach to identify putative neural networks that underlie age-related structural changes associated with processing speed for 42 adults ranging in age from 19-79 years. To characterize a mechanism by which age-related gray matter changes lead to slower processing speed, we examined the extent to which cerebral small vessel disease influenced the association between age-related gray matter (...) changes and processing speed. A frontal pattern of gray matter and white matter variation that was related to cerebral small vessel disease, as well as a cerebellar pattern of gray matter and white matter variation were uniquely related to age-related declines in processing speed. These results demonstrate that at least 2 distinct factors affect age-related changes in processing speed, which might be slowed by mitigating cerebral small vessel disease and factors affecting declines in cerebellar morphology. (shrink)