One of the most compelling questions still unanswered in neuroscience is how consciousness arises. In this article, we examine visual processing, the parietal lobe, and contralateral neglect syndrome as a window into consciousness and how the brain functions as the mind and we introduce a mechanism for the processing of visual information and its role in consciousness. We propose that consciousness arises from integration of information from throughout the body and brain by the thalamus and that the thalamus reimages visual (...) and other sensory information from throughout the cortex in a default three-dimensional space in the mind. We further suggest that the thalamus generates a dynamic default three-dimensional space by integrating processed information from corticothalamic feedback loops, creating an infrastructure that may form the basis of our consciousness. Further experimental evidence is needed to examine and support this hypothesis, the role of the thalamus, and to further elucidate the mechanism of consciousness. (shrink)

The Global Workspace Theory and Information Integration Theory are two of the most currently accepted consciousness models; however, these models do not address many aspects of conscious experience. We compare these models to our previously proposed consciousness model in which the thalamus fills-in processed sensory information from corticothalamic feedback loops within a proposed 3D default space, resulting in the recreation of the internal and external worlds within the mind. This 3D default space is composed of all cells of the body, (...) which communicate via gap junctions and electrical potentials to create this unified space. We use 3D llustrations to explain how both visual and non-visual sensory information may be filled-in within this dynamic space, creating a unified seamless conscious experience. This neural sensory memory space is likely generated by baseline neural oscillatory activity from the default mode network, other salient networks, brainstem, and reticular activating system. (shrink)

The complex activity of the human brain makes it difficult to get a big picture of how the brain works and functions as the mind. We examine pertinent studies, as well as evolutionary and embryologic evidence to support our theoretical model consisting of separate but interactive layers of human neural activity. The most basic layer involves default mode network (DMN)activity and cardiorespiratory oscillations. We propose that these oscillations support other neural activity and cognitive processes. The second layer involves limbic system (...) activity accompanied by corresponding changes in cardiorespiratory oscillations. The third layer consists of corticothalamic processing and involves higher cortical functions including awareness, cognition,and consciousness. These layers interact to form the complex neural activity of the human brain. Examining the origins and relationships of various neural and physiologic oscillations may provide better understanding of human neurophysiology and consciousness. (shrink)

Immanuel Kant was a German philosopher. He is a central figure of modern philosophy, and set the terms by which all subsequent thinkers have had to grapple. He argued that human perception structures natural laws, and that reason is the source of morality. His thought continues to hold a major influence in contemporary thought, especially in fields such as metaphysics, epistemology, ethics, political philosophy, and aesthetics.

This chapter contains sections titled: The Aesthetic Appreciating Nature Skepticism Regarding Aesthetic Nature Aesthetics and the Concept of Nature.

Defining and identifying causal intervention effects for transmissible infectious disease outcomes is challenging because a treatment – such as a vaccine – given to one individual may affect the infection outcomes of others. Epidemiologists have proposed causal estimands to quantify effects of interventions under contagion using a two-person partnership model. These simple conceptual models have helped researchers develop causal estimands relevant to clinical evaluation of vaccine effects. However, many of these partnership models are formulated under structural assumptions that preclude realistic (...) infectious disease transmission dynamics, limiting their conceptual usefulness in defining and identifying causal treatment effects in empirical intervention trials. In this paper, we propose causal intervention effects in two-person partnerships under arbitrary infectious disease transmission dynamics, and give nonparametric identification results showing how effects can be estimated in empirical trials using time-to-infection or binary outcome data. The key insight is that contagion is a causal phenomenon that induces conditional independencies on infection outcomes that can be exploited for the identification of clinically meaningful causal estimands. These new estimands are compared to existing quantities, and results are illustrated using a realistic simulation of an HIV vaccine trial. (shrink)

Intercellular signaling plays an important role in spatially regulated developmental processes. Myxococcus xanthus C signal transmission during fruiting body formation requires motile, densely packed, well aligned cells. tThe fruiting body consists of two domains: an outer domain which has densely packed, well aligned, motile cells: and an inner domain of more loosely packed, non‐motile, sporulating cells. The two domains are characterized by different patterns of C‐dependent gene expression, which begins in the outer domain where C‐signaling is most efficient, and reaches (...) its maximum in the inner domain. These domains may be maintained by a dynamic mechanism which relies on passive transport of the sporulating cells from the outer domain, where sporulation is initiated, to the inner domain by the motile cells in the outer domain. (shrink)

Multilevel research strategies characterize contemporary molecular inquiry into biological systems. We outline conceptual, methodological, and explanatory dimensions of these multilevel strategies in microbial ecology, systems biology, protein research, and developmental biology. This review of emerging lines of inquiry in these fields suggests that multilevel research in molecular life sciences has significant implications for philosophical understandings of explanation, modeling, and representation.

Throughout the biological and biomedical sciences there is a growing need for, prescriptive ‘minimum information’ (MI) checklists specifying the key information to include when reporting experimental results are beginning to find favor with experimentalists, analysts, publishers and funders alike. Such checklists aim to ensure that methods, data, analyses and results are described to a level sufficient to support the unambiguous interpretation, sophisticated search, reanalysis and experimental corroboration and reuse of data sets, facilitating the extraction of maximum value from data sets (...) them. However, such ‘minimum information’ MI checklists are usually developed independently by groups working within representatives of particular biologically- or technologically-delineated domains. Consequently, an overview of the full range of checklists can be difficult to establish without intensive searching, and even tracking thetheir individual evolution of single checklists may be a non-trivial exercise. Checklists are also inevitably partially redundant when measured one against another, and where they overlap is far from straightforward. Furthermore, conflicts in scope and arbitrary decisions on wording and sub-structuring make integration difficult. This presents inhibit their use in combination. Overall, these issues present significant difficulties for the users of checklists, especially those in areas such as systems biology, who routinely combine information from multiple biological domains and technology platforms. To address all of the above, we present MIBBI (Minimum Information for Biological and Biomedical Investigations); a web-based communal resource for such checklists, designed to act as a ‘one-stop shop’ for those exploring the range of extant checklist projects, and to foster collaborative, integrative development and ultimately promote gradual integration of checklists. (shrink)

The paper focuses on an online business ethics course that three professors (Painter-Morland, Fontrodona and Hoffman) taught together, and in which the fourth author (Rowe) participated as a student, from their respective locations on three continents. The course was conducted using Centra software, which allowed for synchronous online interaction. The class included students from Europe, South Africa and the United States. In order to assess the value of synchronous online teaching for ethics training, the paper identifies certain knowledge, skills and (...) capacities that are crucial to the moral development process within individuals. The paper argues that the online teaching method succeeds in creating an environment within which important ethical knowledge and skills might be developed. It provides an in-depth reflection on the advantages and dis-advantages of online teaching and proposes improvements on the way forward. One of the major advantages relates to its ability to facilitate cross-cultural discussion and debate on ethical issues and foster insight into contextual influences on ethics management within an international arena. (shrink)

The trenchant scholarship evident in Fried's earlier essays on Couture, Manet and Courbet is equally manifest in this challenging study of the development of French painting in the period 1750-1770. Fried's major thesis is that the central and guiding concern of artists from Chardin to David was the relationship between the viewer of the painting and what is represented in the painting. Those who now concentrate on social and economic determinants of artistic enterprises will be disappointed by Fried's blatantly aesthetic (...) hypothesis that the narrower concerns of the art of painting itself were primary in the mainstream of French painting of this period. But they will be hardpressed to counter the solid evidence that Fried musters in support of his position. (shrink)

This is the third of a series of books by Aschenbrenner dealing with the nature of appraisive concepts, following The Concept of Value and The Concepts of Criticism. In the previous works he attempted to identify, classify and provide a general theoretical framework for all appraisive or value concepts. The first part of the present book expands that analysis by investigating the emergence of appraisive concepts and exploring in depth the nature of the classifications made in the previous books. Aschenbrenner (...) begins with elemental sense experience and works his way to complex human interactions, where he finds that expectations of others lead to demands, and that their fulfillment or nonfulfillment leads to the use of appraisive characterization, ranging from the expression of emotions to the articulation of rights and duties. He provides details of the verbal and conceptual means by which credit and discredit are expressed, modes of opposition between concepts, and various dimensions of meaning. On a more general level, his view is that assertions using appraisive terms are not true or false, nor in need of verification; rather they are evaluated as apt or unapt and as fair or unfair, just or unjust. But these evaluations are themselves appraisive discourse, only at another level. (shrink)