The recent push to extend physician-aid-in-dying (PAD) to psychiatric conditions has significantly altered the ethical landscape surrounding psychiatric judgments concerning treatment-refractory il...

Kenneth F. Schaffner compares the practice of biological and medical research and shows how traditional topics in philosophy of science—such as the nature of theories and of explanation—can illuminate the life sciences. While Schaffner pays some attention to the conceptual questions of evolutionary biology, his chief focus is on the examples that immunology, human genetics, neuroscience, and internal medicine provide for examinations of the way scientists develop, examine, test, and apply theories. Although traditional philosophy of science has regarded scientific (...) discovery—the questions of creativity in science—as a subject for psychological rather than philosophical study, Schaffner argues that recent work in cognitive science and artificial intelligence enables researchers to rationally analyze the nature of discovery. As a philosopher of science who holds an M.D., he has examined biomedical work from the inside and uses detailed examples from the entire range of the life sciences to support the semantic approach to scientific theories, addressing whether there are "laws" in the life sciences as there are in the physical sciences. Schaffner's novel use of philosophical tools to deal with scientific research in all of its complexity provides a distinctive angle on basic questions of scientific evaluation and explanation. (shrink)

Behaving presents an overview of the recent history and methodology of behavioral genetics and psychiatric genetics, informed by a philosophical perspective. Kenneth F. Schaffner addresses a wide range of issues, including genetic reductionism and determinism, "free will," and quantitative and molecular genetics. The latter covers newer genome-wide association studies that have produced a paradigm shift in the subject, and generated the problem of "missing heritability." Schaffner also presents cases involving pro and con arguments for genetic testing for IQ and (...) for Attention Deficit Hyperactivity Disorder. Schaffner examines the nature-nurture controversy and Developmental Systems Theory using C. elegans or "worm" studies as a test case, concluding that genes are special and provide powerful tools, including "deep homology," for investigating behavior. He offers a novel account of biological knowledge emphasizing the importance of models, mechanisms, pathways, and networks, which clarifies how partial reductions provide explanations of traits and disorders. The book also includes examinations of personality genetics and of schizophrenia and its etiology, alongside interviews with prominent researchers in the area, and discusses debates about psychosis that led to changes in the DSM-5 in 2013.Schaffner concludes by discussing additional philosophical implications of the genetic analyses in the book, some major worries about "free will," and arguments pro and con about why genes and DNA are so special. Though genes are special, newer perspectives presented in this book will be needed for progress in behavioral genetics- perspectives that situate genes in complex multilevel prototypic pathways and networks. With a mix of optimism and pessimism about the state of the field and the subject, Schaffner's book will be of interest to scholars in the history and philosophy of science, medicine, and psychiatry. (shrink)

The paper begins with an overview of the historical roots of philosophical hermeneutics grounded in the work of Husserl and Heidegger. It goes on to explore the philosophical hermeneutics of Hans Georg Gadamer as a philosophy useful to nursing research. The four concepts of prejudice, the fusion of horizons, the hermeneutic circle and play are discussed, as are the implications these concepts have for nursing research. These concepts have been utilized in the author's own research and examples from this research (...) are given to illuminate how these concepts can be shaped to the purposes of nursing research. While the concepts discussed stem from the work of Gadamer, the ways they have been utilized by the author do not represent a Gadamerian method. Gadamer's project is purely philosophical. (shrink)

Event-related desynchronization, as a proxy for mirror neuron activity, has been used as a neurophysiological marker for motor execution after mirror visual feedback. Using EEG, this study investigated ERD upon the immediate effects of single-session MVF in unimanual arm movements compared with the ERD effects occurring without a mirror, in two groups: stroke patients with left hemiplegia and their healthy counterparts. During EEG recordings, each group performed one session of mirror therapy training in three task conditions: with a mirror, with (...) no mirror, and with a covered mirror. An asymmetry index was calculated from the subtraction of the event-related spectrum perturbations between the C3 and C4 electrodes located over the sensorimotor cortices contralateral and ipsilateral to the moved arm. Results of the effect of task versus group in contralateral and ipsilateral motor areas showed that there was a significant effect of task condition at the contralateral motor area in the high beta band at C3. High beta ERD showed that the suppression was greater over the contralateral hemisphere than it was over the ipsilateral hemisphere in both study groups. The magnitude of low beta ERD in patients with stroke was more suppressed in contralesional C3 under the no mirror compared to that of the covered mirror and similarly more suppressed in ipsilesional C4 ERD under the no mirror compared to that of the mirror condition. The correlation analysis revealed that the magnitude of ERSP power correlated significantly with arm severity in the low and high beta bands in patients with stroke, and a higher asymmetry index in the low beta band was associated with higher arm functioning under the no-mirror condition. There was a shift in sensorimotor ERD toward the contralateral hemisphere as induced by MVF accompanying unimanual movement in both stroke patients and healthy controls. The use of ERD in the low beta band as a neurophysiological marker to indicate the relationships between the amount of MVF-induced ERD attenuation and motor severity, and the outcome indicator for improving stroke patients’ neuroplasticity in clinical trials using MVF are warranted to be explored in the future. (shrink)

The American Journal of Bioethics, Volume 12, Issue 10, Page 12-14, October 2012.

The articles collected in this special issue were originally presented at two workshops entitled "Ethical Issues of Animal Research" sponsored by Georgetown University's Kennedy Institute of Ethics and Indiana University's Poynter Center for the Study of Ethics and American Institution. Some of the most prominent and influential thinkers in the field present their diverse views.

I have not attempted to provide here an analysis of the methodology of molecular biology or molecular genetics which would demonstrate at what specific points a more reductionist aim would make sense as a research strategy. This, I believe, would require a much deeper analysis of scientific growth than philosophy of science has been able to provide thus far. What I have tried to show is that a straightforward reductionist strategy cannot be said to be follwed in important cases of (...) theory development in molecular biology, and that in at least one important case, the Jacob-Monod operon theory, the methodology followed was more biological than chemical. It should be noted in closing, however, that since biological systems are thought by molecular biologists to be nothing but chemical systems, in the long run detailed investigations of such systems will be in full accord with the dictates suggested by the general reduction model. (shrink)

Four current accounts of theory reduction are presented, first informally and then formally: (1) an account of direct theory reduction that is based on the contributions of Nagel, Woodger, and Quine, (2) an indirect reduction paradigm due to Kemeny and Oppenheim, (3) an "isomorphic model" schema traceable to Suppes, and (4) a theory of reduction that is based on the work of Popper, Feyerabend, and Kuhn. Reference is made, in an attempt to choose between these schemas, to the explanation of (...) physical optics by Maxwell's electromagnetic theory, and to the revisions of genetics necessitated by partial biochemical reductions of genetics. A more general reduction schema is proposed which: (1) yields as special cases the four reduction paradigms considered above, (2) seems to be in better accord with both the canons of logic and actual scientific practice, and (3) clarifies the problems of meaning variance and ontological reduction. (shrink)

This study investigated personal perceptions and comprehensions of self-ascribed paranormal abilities. Twelve participants with supposed supernatural powers took part in semi-structured interviews exploring the origin, phenomenology, and nature of their powers. Interview transcripts were analysed using reflexive thematic analysis, a qualitative method that identifies patterns within data. Four major themes expressed meanings and representations held by participants: Formative Influences, Subjective Paranormal Experience, Embodied Processes, and Perception of Reality. Consideration of themes identified an inextricable link between perception, interpretation, and belief in (...) ability. Within narratives, interviewees outlined, contextualised, and established the validity of their powers. They drew upon supporting autobiographical evidence from their life histories and obfuscated and/or discounted conventional explanations. Generally, accounts reflected individual attempts to comprehend and justify the nature and experience of professed abilities. The authors discuss these processes and suggest ways to extend and develop ensuing research. (shrink)

Kant's "Critique of Aesthetic Judgement," which is the first part of his larger Critique of Judgement, is enjoying a renewed interest. This renewed interest, however, has brought with it a renewed controversy over just how Kant's aesthetic theory should be understood. Of the many interpretative questions at issue, perhaps the most fundamental is what it is about an object, on Kant's accounting, that makes it beautiful. Traditionally, Kant has been understood as holding a formalist theory of beauty. That is to (...) say, beauty--or better, our appreciation of beauty--is a matter of the way an object is structured or organized. While there can be no doubt that Kant stresses the importance of form in the early sections of the "Critique," the later portions of the text advance what seems to be a quite different, perhaps even antithetical, paradigm of beauty. In these sections, Kant maintains that for an object to be beautiful it must have some content--specifically, the object must express some "idea." What makes an interpretation difficult is that Kant seems to stand on both sides of a wide gulf in modern aesthetic theory. Within a single work on aesthetics, Kant claims first that beauty depends upon form and, later, that it depends upon content. And, yet, it is typically thought that these positions are mutually exclusive. ;My dissertation is directed specifically to the question of what Kant considers as the features of an object responsible for beauty. Stated broadly, I argue that Kant's consistent position is that for an object to be considered as beautiful we must base our judgment upon how the object is organized , but with an eye to how well this organization is able to express an idea . More precisely, I claim that for Kant both form and expression of ideas are necessary conditions for beauty. To support my thesis I shall follow Kant's own procedure for identifying what makes an object beautiful. In the "Critique of Aesthetic Judgement," Kant considers the issue of beauty from the standpoint of an analysis and justification of the judgment that something is beautiful. That is to say, Kant first determines what is meant by such a judgment and then considers what features an object must possess if we are to claim legitimately that something is beautiful. After closely studying Kant's analysis and justification, I argue that an object can be judged as beautiful only if it is organized in such a way as to express an idea. ;In the first two chapters of my dissertation, I describe Kant's project in the Critique of Judgement generally and the "Critique of Aesthetic Judgement" more particularly. I devote Chapter III to a close study of the argument of the first half of the text in order to determine the extent to which Kant presents a coherent justification of judgments of beauty. I subsequently argue, in Chapter IV, that the early sections do not complete Kant's justification of judgments of beauty. Further, I argue for what must yet be shown for Kant to make his case. In the final two chapters, V and VI, I describe Kant's theory of expression, argue that it completes Kant's central argument, and, in the end, I support my interpretation that both form and expression of ideas constitute the requirements for beauty in Kant's theory. (shrink)

In this paper I discuss the nature of a broad class of biomedical theories which I have termed "middle-range theories." I define them and relate the nature of biomedical theorizing to other investigations, such as a recent inquiry by the National Academy of Sciences. I also suggest that some of the knowledge representation tools from artificial intelligence may give us a purchase on this type of biological theorizing, and try to show in a rather preliminary and exploratory manner by using (...) the lac operon model of genetic control, what some of those AI applications, such as frames and semantic nets, might look like in this context. Finally, I suggest some difficulties, such as the non-monotonicity of reasoning, which such tools may generate. (shrink)

For some time now ethical debates have been fought on a field whose boundaries are the historical theories of Kant's deontology and Mill's utilitarianism. Recently, however, several have chosen to leave the battlefield entirely—to suggest, in various ways, that both of the major ethical theories share a common, flawed outlook. Thomas Nagel, for example, has argued that founding ethics on the sole ground of interpersonal obligations unnecessarily “fragments” human value. Such an account has the effect of pitting one species of (...) human value against other quite legitimate values. Or approaching the matter from quite another direction, Philippa Foot also holds that morality, as a system of interpersonal obligations, is too limiting. However, she proposes to counter the advancing forces of modern ethics by championing an Aristotelian doctrine of virtue. (shrink)

Explores the history, culture, and lifestyle of Alaska's Aleutian Islands and features dozens of full-color photographs of the region's natural and man-made features.

In the present article I have surveyed several approaches to modeling the clinical diagnostic process. I have argued that at this point of the field's development, logics which simulate the reasoning patterns and knowledge base of expert clinicians represent research programs that are most likely to succeed. No logic of diagnosis has yet attained the status of being definitive; in spite of striking progress much more research and testing is required. On the basis of various existing logics, I have attempted (...) to articulate a number of desiderata which an ideal diagnostic logic should satisfy. In spite of these criticisms, I would maintain that programs such as MYCIN and INTERNIST have already matured to the point where they are useful both in consultations and in teaching diagnostic reasoning. (shrink)

In this paper, I propose two theses, and then examine what the consequences of those theses are for discussions of reduction and emergence. The first thesis is that what have traditionally been seen as robust, reductions of one theory or one branch of science by another more fundamental one are a largely a myth. Although there are such reductions in the physical sciences, they are quite rare, and depend on special requirements. In the biological sciences, these prima facie sweeping reductions (...) fade away, like the body of the famous Cheshire cat, leaving only a smile.... The second thesis is that the "smiles" are fragmentary patchy explanations, and though patchy and fragmentary, they are very important, potentially Nobel-prize winning advances. To get the best grasp of these "smiles," I want to argue that, we need to return to the roots of discussions and analyses of scientific explanation more generally, and not focus mainly on reduction models, though three conditions based on earlier reduction models are retained in the present analysis. I briefly review the scientific explanation literature as it relates to reduction, and then offer my account of explanation. The account of scientific explanation I present is one I have discussed before, but in this paper I try to simplify it, and characterize it as involving field elements and a preferred causal model system abbreviated as FE and PCMS. In an important sense, this FE and PCMS analysis locates an "explanation" in a typical scientific research article. This FE and PCMS account is illustrated using a recent set of neurogenetic papers on two kinds of worm foraging behaviors: solitary and social feeding. One of the preferred model systems from a 2002 Nature article in this set is used to exemplify the FE and PCMS analysis, which is shown to have both reductive and nonreductive aspects. The paper closes with a brief discussion of how this FE and PCMS approach differs from and is congruent with Bickle's "ruthless reductionism" and the recently revived mechanistic philosophy of science of Machamer, Darden, and Craver. (shrink)