Idiopathic Parkinson’s disease impairs working memory, but the exact nature of this deficit in terms of the underlying cognitive mechanisms is not well understood. In this study patients with mild clinical symptoms of PD were compared with matched healthy control subjects on a computerized battery of tests designed to assess spatial working memory and verbal working memory. In the spatial working memory task, subjects were required to recall a sequence of four locations. The verbal working memory task was methodologically identical (...) except for the modality of the stimuli used, requiring subjects to orally recall a sequence of six digits. In either case, half of the sequences were structured in a way that allowed ‘chunking’, while others were unstructured. This manipulation was designed to dissociate the strategic component of task performance from the memory-load component. Mild medicated patients with PD were impaired only on the structured versions of the verbal working memory tasks. The analogous deficit in the spatial working memory was less pronounced. These findings are in agreement with the hypothesis that working memory deficits in PD reflect mainly the executive component of the tasks and that the deficits may be at least partly modality-independent. (shrink)

One method for investigating the neurobiology of consciousness is to experimentally manipulate consciousness as a variable and then visualize the resultant functional brain changes with advanced imaging techniques. To begin investigation into this area, healthy volunteers underwent positron emission tomography scanning while listening to randomized word lists in both conscious and unconscious conditions. Following anaesthesia, subjects had no explicit memories. Nonetheless, subjects demonstrated implicit memory on a forced-choice test . These subsequent memory scores were correlated with regional brain metabolism measured (...) during encoding. Conscious recall and unconscious recognition memory demonstrated considerable anatomic overlap in correlating significantly with relative glucose metabolism in auditory verbal memory areas. However, only conscious recall correlated with mediodorsal thalamic nucleus activity; unconscious recognition memory did not. These findings suggest that conscious versus unconscious memory distinctions may depend on the presence or absence of correlated thalamic activity, and directly implicate the thalamus in the neurobiology of consciousness. (shrink)

This book provides a clear and nuanced appraisal of Hegel's treatment of Africa, India, and Islam, and of the implications of this treatment for postcolonial and global studies. Analyzing Hegel's master-slave dialectic and his views on Africa, India, and Islam, it situates these views not only within Hegel's historical scheme but also within a broader European philosophical context and the debates they have provoked within Hegel scholarship. Each chapter explores various in depth readings of Hegel by postcolonial critics, investigating both (...) the Eurocentric and potentially global nature of his dialectic. Ultimately, the book shows both where of this profoundly influential thinker archetypally embodies certain Eurocentric traits that have characterized modernity and how, ironically, he himself gives us the tools for working towards a more global vision. Offering a concise introduction not only to an important dimension of Hegel's thought - his orientation towards "empire" - but also to the various issues raised by postcolonial theory and global studies, this book will be of use to philosophers as well as advanced students of literary and cultural theory alike. (shrink)

Hegel's philosophy is central to the very foundations of modern Western thought. His speculative system brought into confluence two movements—the Enlightenment and Romanticism—which have shaped modernity, and it gave rise to many streams of thought, including Marxism, Anglo-American Idealism, and various forms of historicism. Equally, his thought provoked widespread and pervasive reactions such as those embodied in positivism, realism, and existentialism.One of the more recent series of reactions—particularly within the areas of literary and cultural theory—has been against Hegel's Eurocentrism, which (...) has been examined in its treatment of Africa and the "Orient" in general. Hegel's vision of the "Orient" was often... (shrink)

"Hegel and the Foundations of Literary Theory: Do the various forms of literary theory - deconstruction, Marxism, new historicism, feminism, post-colonialism, and cultural/digital studies - have anything in common? If so, what are the fundamental principles of theory? What is its ideological orientation? Can it still be of use to us in understanding basic intellectual and ethical dilemmas of our time? These questions continue to perplex both students and teachers of literary theory. Habib finds the answers in theory's largely unacknowledged (...) roots in the thought of German philosopher Hegel. Hegel's insights continue to frame the very terms of theory to this day. Habib explains Hegel's complex ideas and how they have percolated through the intellectual history of the last century. This book will interest teachers and students of literature, literary theory and the history of ideas, illuminating how our modern world came into being, and how we can better understand the salient issues of our own time"--. (shrink)

Contractualism is one of the most promising ‘centers of gravity’ in business ethics. In this guest editorial we provide a concise roadmap to the field, sketching contractualism’s historic and disciplinary antecedents, the basic argumentative structure of the contract model, and its boundary conditions. We also sketch two main dimensions along which contributions to the contractualist tradition can be positioned. The first dimension entails positive versus normative theorizing – does a given contribution analyze the world as it is or how it (...) ought to be? The second dimension involves four different levels of analysis that are commonly employed in contractualist business ethics: the nano, micro, meso, and macro levels. We then proceed to position the articles comprising this special issue along these two dimensions. (shrink)

Contractualism conceives of firm-stakeholder relations as cooperative schemes for mutual benefit. In essence, contractualism holds that these schemes, as well as the normative principles that guide and constrain them, are ultimately ratified by the consent and endorsement of those subject to them. This paper explores the empirical validity of a contractualist perspective on firm-stakeholder relations. It first develops a typology of firm-stakeholder contracting problems. It subsequently confronts this typology with empirical data collected in an interview study of concrete stakeholder management (...) practices, involving in-depth research interviews with forty-four managers working in the Dutch financial services industry. The findings of this theory-building study suggest that there are limits to the applicability of the contract model in the context of stakeholder management, and that disregarding either the model or its limitations may lead to highly ineffective firm-stakeholder relations. (shrink)

ABSTRACT:Organization theory and business ethics are essentially the positive and normative sides of the very same coin, reflecting on how human cooperative activities are organized and how they ought to be organized respectively. It is therefore unfortunate that—due to the relatively impermeable manmade boundaries segregating the corresponding scholarly communities into separate schools and departments, professional associations, and scientific journals—the potential symbiosis between the two fields has not yet fully materialized. In this essay we make a modest attempt at establishing further (...) connectivity by surveying the terrain covered by the two disciplines jointly, as if the boundaries between them did not matter. We commence by providing a concise overview of the organization theory discipline for interested non-specialists from the field of business ethics. Next, we proceed to point out four research themes commonly investigated by members of both communities, and also a variety of organization-theoretical perspectives on each. In the final part of this essay we explore what organization theory has to offer business ethics, and what the boundaries of that potential contribution are. We warn skeptical readers in advance that the spirit and tone of our essay is most definitely upbeat, as we are convinced that the potential for symbiosis between the two fields is vast and inspiring, even though it has only been unleashed partially and incidentally thus far. (shrink)