The Epic of Evolution is a course taught at Northern Arizona University. It engages the task of formulating a new epic myth that is based on the physical, natural, social, and cultural sciences. It aims to serve the need of providing meaning for human living in the vast and complex universe that the sciences now depict for us. It is an interdisciplinary effort in an academic setting that is often divided by specializations; it focuses on values in a climate of (...) relativism; and it concentrates on an enterprise for which there are few textbooks at hand. The course is presented in three segments: the cosmos before humans appeared, the human phenomenon, and scenarios for the future of evolution. (shrink)

A common worry about the genetic engineering of human beings is that it will reduce human genetic diversity, creating a biological monoculture that could not only increase our susceptibility to disease but also hasten the extinction of our species. Thus far, however, the evolutionary implications of human genetic modification remain largely unexplored. In this paper, I consider whether the widespread use of genetic engineering technology is likely to narrow the present range of genetic variation, and if so, whether this would (...) in fact lead to the evolutionary harms that some authors envision. By examining the nature of biological variation and its relation to population immunity and evolvability, I show that not only will genetic engineering have a negligible impact on human genetic diversity, but also that it will be more likely to ensure rather than undermine the health and longevity of the human species. (shrink)

In this paper I provide a novel argument against the claim that classical genetics is being reduced to molecular genetics. Specifically, I demonstrate that reductionists must subscribe to the unargued and problematic thesis that molecular genetics is 'independent' of classical genetics. I also argue that several standard antireductionist positions can be faulted for unnecessarily conceding the Independence Thesis to the reductionists. In place of a 'tale of two sciences', I offer a 'heroic' stance that denies classical genetics is being reduced, (...) yet sees classical and molecular genetics as fundamentally unified. (shrink)

There are many ways that biological theory can inform ethical discussions of genetic engineering and biomedical enhancement. In this essay, we highlight some of these potential contributions, and along the way provide a synthetic overview of the papers that comprise this special issue. We begin by comparing and contrasting genetic engineering with programs of selective breeding that led to the domestication of plants and animals, and we consider how genetic engineering differs from other contemporary biotechnologies such as embryo selection. We (...) go on to consider the implications of genetic engineering for human nature, human evolution, and persistence of the human species. Finally, we question whether genetic interventions warrant the extraordinary ethical scrutiny they are often given, and we show how the misleading “genetic blueprint” metaphor has imposed a faulty structure on the enhancement debate. We conclude by considering the nature of biological development and the sobering limits it places on what genetic engineering can reasonably hope to achieve. (shrink)

Many philosophers invoke the "wisdom of nature" in arguing for varying degrees of caution in the development and use of genetic enhancement technologies. Because they view natural selection as akin to a master engineer that creates functionally and morally optimal design, these authors tend to regard genetic intervention with suspicion. In Part II, we examine and ultimately reject the evolutionary assumptions that underlie the master engineer analogy (MEA). By highlighting the constraints on ordinary unassisted evolution, we show how intentional genetic (...) modification can overcome many of the natural impediments to the human good. Our contention is that genetic engineering offers a solution that is more eff icient, reliable, versatile, and morally palatable than the lumbering juggernaut of Darwinian evolution. In Part III, we evaluate a recent attempt to ground precautionary enhancement heuristics in adaptive etiology. Our problem with this approach is two-fold: first, it is based on the same "strong adaptationist" interpretation of evolution that motivates the flawed MEA, and second, the etiological concept of function on which it relies provides indirect and potentially misleading information about the likely consequences of genetic intervention. We offer instead enhancement criteria based on causal relationships in ontogeny. We conclude that rather than grounding a presumption against deliberate genetic modification, the causal structure of the living world gives us good moral reason to pursue it. (shrink)

It is predicted that the rapid acquisition of new genetic knowledge and related applications during the next decade will have significant implications for virtually all members of society. Currently, most people get exposed to information about genes and genetics only through stories publicized in the media. We sought to understand how individuals in the general population used and understood the concepts of ???genetics??? and ???genes.??? During in-depth one-on-one telephone interviews with adults in the United States, we asked questions exploring their (...) basic understanding of these terms, as well as their belief as to the location of genes in the human body. A wide range of responses was received. Despite conversational familiarity with genetic terminology, many noted frustration or were hesitant when trying to answer these questions. In addition, some responses reflected a lack of understanding about basic genetic science that may have significant implications for broader public education measures in genetic literacy, genetic counseling, public health practices, and even routine health care. (shrink)

Binmore analyzes the genetic basis of cooperation. Much of the literature doing this supposes that we must explain directly the cooperative tendency, whether by individual or group selection. A more effective way to go is to find something more general and likely more deeply embedded in personal traits that enables and even enhances cooperation. Hume, with whom Binmore claims affinities, long ago proposed a psychological phenomenon now called mirroring, which induces good relations through shared sentiments in a way that is (...) essentially hard-wired. Mirroring indirectly contributes to cooperativeness. There may be other similarly indirect ways to account for human cooperativeness. (shrink)

This article deals with the prospect of genetically enhancing intelligence. We identify and contrast social attitudes (disapproval) to the use of future genetic technology with social attitudes (approval) for environmental methods of enhancing intelligence. Using various forms of the argument that the means by which enhancement is achieved has moral significance, we look for differences that could justify the different attitudes. We find that the different attitudes cannot be ethically justified. We predict that the lack of ethical justification for distinguishing (...) between means of enhancement is likely to result in the eventual acceptance of genetic enhancement of intelligence. (shrink)

Many debates about the moral status of things—for example, debates about the natural rights of human fetuses or nonhuman animals—eventually migrate towards a discussion of the capacities of the things in question—for example, their capacities to feel pain, think, or love. Yet the move towards capacities is often controversial: if a human’s capacities are the basis of its moral status, how could a human having lesser capacities than you and I have the same "serious" moral status as you and I? (...) This book answers this question by arguing that if something is human, it has a set of typical human capacities; that if something has a set of typical human capacities, it has serious moral status; and thus all human beings have the same sort of serious moral status as you and I. Beginning from what our common intuitions tell us about situations involving "temporary incapacitation"—where a human organism has, then loses, then regains a certain capacity—this book argues for substantive conclusions regarding human fetuses and embryos, humans in a permanent vegetative state, humans suffering from brain diseases, and humans born with genetic disorders. Since these conclusions must have some impact on our ongoing moral and political debates about the proper treatment of such humans, this book will be useful to professionals and students in philosophy, bioethics, law, medicine, and public policy. (shrink)

Liberal proponents of genetic engineering maintain that developing human germline modification technologies is morally desirable because it will result in a net improvement in human health and well-being. Skeptics of germline modification, in contrast, fear evolutionary harms that could flow from intervening in the human germline, and worry that such programs, even if well intentioned, could lead to a recapitulation of the scientifically and morally discredited projects of the old eugenics. Some bioconservatives have appealed as well to the value of (...) retaining our “given” human biological nature as a reason for restraining the development and use of human genetic modification technologies even where they would tend to increase well-being. In this article, I argue that germline intervention will be necessary merely to sustain the levels of genetic health that we presently enjoy for future generations—a goal that should appeal to bioliberals and bioconservatives alike. This is due to the population-genetic consequences of relaxed selection pressures in human populations caused by the increasing efficacy and availability of conventional medicine. This heterodox conclusion, which I present as a problem of intergenerational justice, has been overlooked in medicine and bioethics due to certain misconceptions about human evolution, which I attempt to rectify, as well as the sordid history of Darwinian approaches to medicine and social policy, which I distinguish from the present argument. (shrink)

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.

Recent work on inheritance systems can be divided into inclusive conceptions, according to which genetic and non-genetic inheritance are both involved in the development and transmission of nearly all animal behavioral traits, and more demanding conceptions of what it takes for non-genetic resources involved in development to qualify as a distinct inheritance system. It might be thought that, if a more stringent conception is adopted, homologies could not subsist across two distinct inheritance systems. Indeed, it is commonly assumed that homology (...) relations cannot survive a shift between genetic and cultural inheritance systems, and substantial reliance has been placed on that assumption in debates over the phylogenetic origins of hominin behavioral traits, such as male-initiated intergroup aggression. However, in the homology literature it is widely accepted that a trait can be homologous—that is, inherited continuously in two different lineages from a single common ancestor—despite divergence in the mechanisms involved in the trait’s development in the two lineages. In this paper, we argue that even on an extremely stringent understanding of what it takes for developmental resources to form a separate inheritance system, homologies can nonetheless subsist across shifts between distinct inheritance systems. We argue that this result is a merit of this way of characterizing what it is to be an inheritance system, that it has implications for adjudicating between alternative accounts of homology, and that it offers an important cautionary lesson about how to reason with the homology concept, particularly in the context of cultural species. (shrink)

This chapter critically examines the evolutionary assumptions that underlie the notion that nature is like a master engineer. It compares and contrasts intentional genetic modification (IGM) with unintentional genetic modification (UGM) as to their potential for improving human life. The chapter first argues for two main theses. First, UGM operates under constraints that severely limit its ability to realize what human beings rightly value, including their own survival and improvement. Because IGM can remove these constraints, it is potentially more effective (...) in promoting human well‐being. Second, IGM is also potentially morally preferable to UGM, since the latter is wantonly destructive of life, often involves suffering on a massive scale. The chapter then articulates the kernel of truth in appeals to the wisdom of nature, arguing for the need to develop appropriate cautionary heuristics for IGM. (shrink)

A number of authors have pointed to “convergent evolution” as evidence for the central role of natural selection in shaping predictable trajectories of macroevolution. However, there are numerous conceptual and empirical difficulties that arise in broadly appealing to the frequency of homoplasy as evidence for a non-contingently constrained adaptational design space. Most important is the need to distinguish between convergent (externally constrained) and parallel (internally constrained) evolution, and to consider how the respective frequencies of these significantly different sources of homoplasy (...) affect a strong adaptationist view of life. In this paper, I critically evaluate Simon Conway Morris’s use of the homoplasy literature to support his argument for a non-contingent, counterfactually stable account of macroevolutionary pattern. In so doing, I offer a conception of parallelism which avoids the charge that it differs from convergence merely in degree and not in kind. I argue that although organisms sharing a homoplastic trait will also share varying degrees of homology, it is the underlying developmental homology with respect to the generators directly causally responsible for the homoplastic event that defines parallel evolution and non-arbitrarily distinguishes it from convergence. The notion of “screening-off” is used to distinguish the proximal generators of a homoplastic trait from its more distal genetic causes (such as a master control gene). (shrink)

Any serious ethical discussion of the enhancement of human nature must begin with a reasonably accurate picture of the causal-historical structure of the living world. In this Comment, I show that even biologically sophisticated ethical discussions of the biomedical enhancement of species and speciel natures are susceptible to the kind of essentialistic thinking that Lewens cautions against. Furthermore, I argue that the same evolutionary and developmental considerations that compel Lewens to reject more plausible conceptions of human nature pose equally serious (...) problems for some prominent critiques of biomedical enhancement that presuppose the existence of a “given” biological potential that can be distorted by agentic cultural influences. (shrink)

The Non-Identity Problem is the problem of explaining the apparent wrongness of a decision that does not harm people, especially since some of the people affected by the decision would not exist at all were it not for the decision. One approach to this problem, in the context of reproductive decisions, is to focus on wronging, rather than harming, one's offspring. But a Non-Person Problem emerges for any view that claims (1) that only persons can be wronged and (2) that (...) the person-making properties allow for there to be human non-persons. Consider an individual human organism that is prevented from ever possessing the person-making properties. On person-only accounts of the victims of wronging, this organism cannot be wronged by anyone. Hence even individuals whose decisions prevent it from ever possessing the person-making properties cannot wrong it. But this is counter-intuitive. We can think of examples where a human organism is wronged by precisely those decisions that prevent it from possessing the person-making properties. The best solution to this problem, in the case where the person-making property is rational self-governance in pursuit of a meaningful life, is to adjust the concept of a person so that it refers, not merely to those with the immediate capacity for rational self-governance in pursuit of a meaningful life, but also to those with a higher-order capacity for such self-governance. Any solution to the Non-Identity Problem that focuses on wronging rather than harming should incorporate this sort of solution to the Non-Person Problem. (shrink)

In his introduction to this symposium, “Religions and Cultures of East and West: Perspectives on Bioethics,” Dr. Robert Sade defined its purpose as follows: “The objective of [our] discussions…is to explore the limits of enhancement technologies in light of what makes us essentially human, in the view of world-wide cultures and religions.”These issues would seem to be at the cutting edge of any informed deliberation concerning the merits of “human enhancement” technologies. For instance, the issue of how “what makes us (...) essentially human” affects our reflection on issues of technological “life enhancement” is raised in a 2007 book by Harvard professor Michael J. Sandel, The Case Against Perfection: Ethics in the Age of Genetic Engineering. (shrink)

From what race is to what race does -- Reproductive technologies are not "post-racial" -- Race isn't just made, it's used -- A technological history of race -- "I just want children like me" -- Race and choice in the era of liberal eugenics.

Within the last decade those familiar with environmental ethics have witnessed a resurgence of environmental virtue ethics. According to Louke van Wensveen, ecological virtue language is “rapidly growing” and “represents a distinct moral discourse with an internal unity and logic”—what she calls “an integral discourse.” Does the modern Catholic rights tradition have anything to contribute to this ethical discourse? Grounded historically in neo-Thomistic natural law and virtue ethics, Catholic social teaching originated as a response to late ninteenth- and early twentieth-century (...) social and economic crises. Out of this application emerged the virtue of solidarity. However, an analysis of recent discourse in environmental virtue ethics shows that the treatment of solidarity as an environmental virtue is rather thin in the literature. Nevertheless, with the development of solidarity and the expanding notion of the common good, inclusive of the planetary commons, in recent Catholic documents, solidarity is “translatable” into the realm of ecological virtue ethics. As an environmental virtue, solidarity should be interpreted as “biophilic solidarity” grounded in the genetic homology of evolutionary speciation, and defined as the consistent habit of character expressed in the recognition of our fundamental interrelatedness with the human and nonhuman. As a virtue biophilic solidarity takes explicit shape in determined active engagement to create, promote, and restore the universal common good of creation. In relation to the human-centered Catholic rights tradition, the status of nature is examined drawing on an axiological analysis of nature indicating that the natural world holds a spectrum of values including utilitarian and intrinsic value. The concluding reflection points to the shortfall of environmental virtue ethics without an accompanying social ethic in the interest of an ecological vision for a sustainable society. (shrink)

Preface -- The text's view as gateway to Billy Budd -- The critical heritage -- Acceptance, resistance, and the struggle -- To define Billy Budd -- Brodtkorb: language, mystery and the acceptance of annihilation -- Scorza: Burke, Rousseau and the two narratives of Billy Budd -- Parker: the genetic text and the incompleteness of Billy Budd -- Garner: finding the kernel in the shell -- Wenke: Billy Budd and the pursuit of ambiguity -- The analyses. Billy; Claggart; Vere; The meta-dichotomies; (...) Three dichotomies; "Dreaminess" and the master dichotomy; Winch and the private conscience -- Conclusion -- The moral world of Billy Budd. (shrink)

Bioethics, Volume 36, Issue 8, Page 899-900, October 2022.

In lieu of an abstract, here is a brief excerpt of the content:Being the Right Kind of Parent:Conceiving PeopleCamisha Russell (bio)Daniel Groll's Conceiving People makes one central claim regarding the ethics of using egg or sperm donations to create a child (that one intends to parent): "[P]arents should use an open donor because doing so puts their resulting child in a good position to satisfy the child's likely future interest in having genetic knowledge" (Groll 2021, 12, original italics).Amid myriad (...) thorny ethical questions surrounding assisted reproduction, Groll's decision to focus on a choice that intended parents in need of donor gametes must make before their future child is even conceived—a choice that is typically taken very seriously—makes a lot of sense. The question is live, rarely completely determined as a matter of policy or law, and, as Groll demonstrates, important to most donor-conceived people (and therefore to the families of which they are a part). For this increasing number of individuals and families, a cultural shift in how we think about open versus anonymous donors would have a significant (and as Groll argues, positive) impact.Groll's carefully built argument is important not only for the paths of ethical reasoning that it highlights, but for those common rationales it gently but firmly sets aside (e.g., the donor-conceived person's medical need to know their genetic history or the idea that knowledge of one's genetic origins is the best or only way to truly know oneself). Groll's work is attentive to the types of relationships that foster the emotional health of families, and it's grounded in the experiences and desires articulated by donor-conceived people themselves. For this reader, these are the book's greatest strengths, along with the fact that Groll is often quite funny in his examples, which makes the examples highly relatable.Of course, the challenge for philosophers in writing books of ethical importance for "laypeople" is to offer something an average educated adult can understand while addressing the more technical theoretical issues that matter to ethicists. I would expect Groll's text to satisfy ethicists because his definitions and distinctions are scrupulously clear, and he engages the existing philosophical literature well. As for laypeople, there are surely a few moments in which they will find themselves in the theoretical weeds, so to speak, but Groll has [End Page 193] successfully made the book largely modular, such that they should get a lot from just reading the chapters of direct interest (Groll 2021, 29).Chapter 2, "Keeping Secrets," is essential for intended parents seeking ethical guidance. Groll notes that professional opinion on donor conception has shifted from seeing nondisclosure of a child's donor-conceived status as a moral requirement (to protect privacy and avoid family stigma) to recommending disclosure. He then reviews standard arguments for disclosure: (1) the "profound importance" of known genetic origins to health identity formation, (2) the medical importance of knowing to whom you are (and are not) genetically related, and (3) the harm that keeping secrets can do to family members and family functioning. While Groll agrees with the latter two arguments, he introduces and emphasizes a new argument: the Intimacy argument, in which he convincingly argues that keeping a child's genetic origins secret "violates norms of intimacy by creating distance between parents and children that is at odds with the demands of intimacy in the parent-child relationship" (Groll 2021, 44, original italics). Though, in many ways, this chapter's argument is separate from the central argument for the use of open donors constructed in the rest of the book, I find it compelling and wonder whether it could hold up more of the open donor argument, placing less weight on the Significant Interest view that Groll introduces in the next chapter (and the concerns regarding bionormativity that emerge from that view).In the third chapter, Groll moves from disclosure to the information that's available to be disclosed. That is, it is one thing to commit to telling a child they were donor-conceived after conception. It is another to commit before conception to choosing a donor willing to be known to the future child when... (shrink)

This paper discusses the ethical and regulatory issues raised by ‘‘intragenics’’ – organisms that have been genetically modified using gene technologies, but that do not contain DNA from another species. Considering the rapid development of knowledge about gene regulation and genomics, we anticipate rapid advances in intragenic methods. Of regulatory systems developed to govern genetically modified organisms (GMOs) in North America, Europe, Australia, and New Zealand, the Australian system stands out in explicitly excluding intragenics from regulation. European systems are also (...) under pressure to exclude intragenics from regulation. We evaluate recent arguments that intragenics are safer and more morally acceptable than transgenic organisms, and more acceptable to the public, which might be thought to justify a lower standard of regulation. We argue that the exemption of intragenics from regulation is not justified, and that there may be significant environmental risks associated with them. We conclude that intragenics should be subject to the same standard of regulation as other GMOs. (shrink)

During the 20th century, many researchers studying heredity sought to apply their findings in the arena of mental health and human (mis)behavior. Many of these have examined, from the perspective of heredity and genetics, the desire to drink and its consequences. In this paper, the author examines hereditary explanations of alcoholism in two historical snapshots: the early decades of the 20th century and in the 1990s. Two things come to light. First is the persistence of an“entrepreneurial spirit,”and second is a (...) remarkable failure to take into account the many-leveled heterogeneity in causes of alcoholism. The author describes some sources of this heterogeneity and showshow epistemological problems that arise from it suggest the failure of genetic accounts to consider the social dimensions of disease classification, observation, and diagnosis that form the very basis of the designation “alcoholic.”. (shrink)

Developmental systems theory is an attempt to sum up the ideas of a research tradition in developmental psychobiology that goes back at least to Daniel Lehrman’s work in the 1950s. It yields a representation of evolution that is quite capable of accommodating the traditional themes of natural selection and also the new results that are emerging from evolutionary developmental biology. But it adds something else - a framework for thinking about development and evolution without the distorting dichotomization of biological processes (...) into gene and non-gene and the vestiges of the ‘black-boxing’ of developmental processes in the modern synthesis, such as the asymmetric use of the concept of information. Phenomena that are marginalized in current gene-centric conceptions, such as extra-genetic inheritance, niche construction and phenotypic plasticity are placed center stage. (shrink)

History of science and philosophy of science are not logically related: to claim that they are would be either to underestimate or to misunderstand the genetic fallacy. But one risk of inferring that there is no connection at all between the two is the risk that philosophers of science may not know what they are talking about. The philosopher of science who does not know intimately the history of the scientific problem with which he is exercised may be discussing no (...) genuine state of affairs. On the other hand, The historian and philosopher of science are both concerned with the structure of scientific ideas, And these concerns are fused into one when the scientific "argumentation" of the past is the issue. (staff). (shrink)

Reductionism--understanding complex processes by breaking them into simpler elements--dominates scientific thinking around the world and has certainly proved a powerful tool, leading to major discoveries in every field of science. But reductionism can be taken too far, especially in the life sciences, where sociobiological thinking has bordered on biological determinism. Thus popular science writers such as Richard Dawkins, author of the highly influential The Selfish Gene, can write that human beings are just "robot vehicles blindly programmed to preserve the selfish (...) molecules known as genes." Indeed, for many in science, genes have become the fundamental unit for understanding human existence: genes determine every aspect of our lives, from personal success to existential despair: genes for health and illness, genes for criminality, violence, and sexual orientation. Others would say that this is reductionism with a vengeance. In Lifelines, biologist Steven Rose offers a powerful alternative to the ultradarwinist claims of Dawkins, E.O. Wilson, Daniel Dennett and others. Rose argues against an extreme reductionist approach that would make the gene the key to understanding human nature, in favor of a more complex and richer vision of life. He urges instead that we focus on the organism and in particular on the organism's lifeline: the trajectory it takes through time and space. Our personal lifeline, Rose points out, is unique--even identical twins, with identical genes at birth, will differ over time. These differences are obviously not embedded in our genes, but come about through our developmental trajectory in which genes, as part of the biochemical orchestra of trillions of cells in each human body, have an important part--but only a part--to play. To illustrate this idea, Rose examines recent research in modern biology, and especially two disciplines--genetics (which looks at the impact of genes on form) and developmental biology (which examines the interaction between the organism and the environment)--and he explores new ideas on biological complexity proposed by scientists such as Stuart Kauffman. He shows how our lifelines are constructed through the interplay of physical forces--such as the intrinsic chemistry of lipids and proteins, and the self-organizing and stabilizing properties of complex metabolic webs--and he reaches a startling conclusion: that organisms are active players in their own fate, not simply the playthings of the gods, nature, or the inevitable workings out of gene-driven natural selection. The organism is both the weaver and the pattern it weaves. Lifelines will be a rallying point for all who seek an alternative to the currently fashionable, deeply determinist accounts which dominate popular science writing and, in fact, crowd the pages of some of the major scientific journals. Based on solid, state-of-the-art research, it not only makes important contributions to our understanding of Darwin and natural selection, but will swing the pendulum back to a richer, more complex view of human nature and of life. (shrink)

Dlg (Discs large), Scrib (Scribble) and Lgl (Lethal giant larvae) are evolutionarily conserved components of a common genetic pathway that link the seemingly disparate functions of cell polarity and cell proliferation in epithelial cells. dlg, scrib and lgl have been identified as tumour suppressor genes in Drosophila, mutations of which cause similar phenotypes, involving disruption of cell polarity and neoplastic overgrowth of tissues. The molecular mechanisms by which Dlg, Scrib and Lgl proteins regulate cell proliferation are not clear, but there (...) is some evidence that epithelial polarisation is required for this regulation. Dlg, Scrib and Lgl are highly conserved between human and Drosophila, and we discuss evidence that these proteins also play a role in cancer progression in humans. BioEssays 25:542–553, 2003. © 2003 Wiley Periodicals, Inc. (shrink)

Developmental systems theory is an attempt to sum up the ideas of a research tradition in developmental psychobiology that goes back at least to Daniel Lehrman’s work in the 1950s. It yields a representation of evolution that is quite capable of accommodating the traditional themes of natural selection and also the new results that are emerging from evolutionary developmental biology. But it adds something else - a framework for thinking about development and evolution without the distorting dichotomization of biological processes (...) into gene and non-gene and the vestiges of the ‘black-boxing’ of developmental processes in the modern synthesis, such as the asymmetric use of the concept of information. Phenomena that are marginalized in current gene-centric conceptions, such as extra-genetic inheritance, niche construction and phenotypic plasticity are placed center stage. (shrink)

The sustained interdisciplinary debate about neovitalism between two Johns Hopkins University colleagues, philosopher Arthur O. Lovejoy and experimental geneticist H. S. Jennings, in the period 1911–1914, was the basis for their theoretical reconceptualization of scientific knowledge as contingent and necessarily incomplete in its account of nature. Their response to Hans Driesch’s neovitalist concept of entelechy, and his challenge to the continuity between biology and the inorganic sciences, resulted in a historically significant articulation of genetics and philosophy. This study traces the (...) debate’s shift of problem-focus away from neovitalism’s threat to the unity of science – “organic autonomy,” as Lovejoy put it – and toward the potential for development of a nonmechanististic, nonrationalist theory of scientific knowledge. The result was a new pragmatist epistemology, based on Lovejoy’s and Jennings’s critiques of the inadequacy of pragmatism’s account of scientific knowledge. The first intellectual move, drawing on naturalism and pragmatism, was based on a reinterpretation of science as organized experience. The second, sparked by Henri Bergson’s theory of creative evolution, and drawing together elements of Dewey’s and James’s pragmatisms, produced a new account of the contingency and necessary incompleteness of scientific knowledge. Prompted by the neovitalists’ mix of a priori concepts and, in Driesch’s case, and adherence to empiricism, Lovejoy’s and Jennings’s developing pragmatist epistemologies of science explored the interrelation between rationalism and empiricism. (shrink)

The dynamic developmental theory (DDT) has benefited from the insights of the commentators, particularly in terms of the implications for the proposed steepened delay gradients in attention-deficit/hyperactivity disorder (ADHD). The introduction of modified memory processes as a basis for the delay gradients improved the links to aspects of ADHD. However, it remains unclear whether the hyperactive-impulsive and inattentive subtypes are separate subgroups or may be explained as different outcomes of the same genetic factors and thus explicable by the same principles. (...) The DDT suggests that altered reinforcement and extinction processes define an endophenotype in ADHD that can be related dimensionally to inattention, hyperactivity, and impulsivity. The relation between the suggested endophenotype, characterized by changes in basic learning mechanisms, and other endophenotypes characterized by delay aversion or response disinhibition, needs to be tested in future studies. (shrink)

Neuroscientists now approach some of the deepest problems of the human condition - from illnesses and disorders such as Alzheimer's disease and schizophrenia, to the search for the nature of consciousness itself - in the belief that their science can say something useful about these processes and how to intervene in them. At the same time, by addressing the biological mechanisms involved in phenomena as varied as street violence, drug addiction and sexual orientation, the new science raises profound ethical, legal, (...) social and medical questions. Over many of these issues there is no clear consensus but rather, intense debate. Is memory a molecular process? Is schizophrenia a genetic disorder? What does the future hold for psychopharmacology? Can consciousness be computed and is artificial intelligence a real prospect? From Brains to Consciousness? brings together fourteen of the world's leading neuroscientists, psychologists, computer modellers and philosophers, in a series of chapters that offer fascinating and up-to-the-minute insight into the debates that are taking place in this exciting area of research. (shrink)

Recent mutagenesis studies have demonstrated that the chemotherapeutic agent, chlorambucll (CHL), is highly mutagenic in male germ cells of the mouse. Post‐melotic germ cells, and especially early spermatids, are the most sensitive to the cytotoxic and mutagenic effects of this agent. Genetic, cytogenetic and molecular analyses of many induced mutations have shown that, in these germ‐cell stages, CHL induces predominantly chromosomal rearrangements (deletions and translocations), and mutation‐rate studies show that, in terms of tolerated doses, CHL is perhaps five to ten (...) times more efficient in inducing rearrangements than is radiation exposure. Appropriate breeding protocols, along with knowledge of the advantages and limitations associated with the use of CHL, can be used to expand the current resource of chromosomal rearrangements in the mouse and to provide new phenotype‐associated mutations amenable to positional‐cloning techniques. The analysis of CHL‐induced mutations has also contributed to understanding the factors that affect the yield and nature of chemically induced germline mutations in mammals. (shrink)

This brief essay takes a look at Bertrand Russell (1872–1970), the English philosopher and social reformer, and his ideas about eugenics and dysgenics. It is evident from his works that like many other leading thinkers and social reformers of his time, Russell recognized the importance of genetics for human welfare and was deeply concerned about the dysgenic trends that he observed in his time. He included eugenics as an integral part of his moral philosophy and never abandoned the (...) belief in its importance, although he grew increasingly skeptical of some forms of genetic explanation and concerned about the real- world contexts of eugenic policies in his later years. (shrink)

Resumo: Este artigo tem por objetivo apontar uma relação entre a estética e a ética em Sartre, mostrando que a constituição ética do indivíduo não se distingue da sua constituição estética. Primeiramente, parte-se da crítica que Merle faz em seu artigo à psicanálise existencial e se evidencia como o encontro com a história e a postulação de uma teoria da personalização nas obras biográficas destituem tais críticas. Num segundo momento, legitimam-se as postulações anteriores, apontando-se como na obra Saint (...) class='Hi'>Genet Sartre ratifica a constituição do gosto sobre a moral pelo processo de personalização. Por fim, será visto que toda ética tem um pressuposto transgressor, na medida em que o sujeito ético é também sujeito estético.: This article aims to point out a relation between aesthetics and ethics in Sartre, showing that the ethical constitution of the individual does not distinguish from his or her aesthetic constitution. First, we start from Merle’s criticism of existential psychoanalysis, and we show how such criticisms can be dismissed on the basis of the encounter with history and the postulation of a theory of personalization in biographical works. Second, we point out how Sartre, in his Saint Genet, ratifies the constitution of a taste regarding the moral by the process of personalization. Finally, we will see that all ethics have a transgressive presupposition insofar as the ethical subject is also an aesthetic subject. (shrink)

The paper describes the context and the origin of a particular debate that concerns the evolution of phenotypic plasticity. In 1965, British biologist A. D. Bradshaw proposed a widely cited model intended to explain the evolution of norms of reaction, based on his studies of plant populations. Bradshaw’s model went beyond the notion of the “adaptive norm of reaction” discussed before him by Dobzhansky and Schmalhausen by suggesting that “plasticity” the ability of a phenotype to be modified by the environment (...) should be genetically determined. To prove Bradshaw’s hypothesis, it became necessary for some authors to identify the pressures exerted by natural selection on phenotypic plasticity in particular traits, and thus to model its evolution. In this paper, I contrast two different views, based on quantitative genetic models, proposed in the mid-1980s: Russell Lande and Sara Via’s conception of phenotypic plasticity, which assumes that the evolution of plasticity is linked to the evolution of the plastic trait itself, and Samuel Scheiner and Richard Lyman’s view, which assumes that the evolution of plasticity is independent from the evolution of the trait. I show how the origin of this specific debate, and different assumptions about the evolution of phenotypic plasticity, depended on Bradshaw’s definition of plasticity and the context of quantitative genetics. (shrink)

Non‐Interventionist Objective Divine Action (NIODA), introduced by Robert John Russell, is a model of divine action drawing upon insights from quantum mechanics. It presents an intriguing and significant challenge to classical conceptions of divine action with far‐reaching consequences. When applying NIODA to theistic evolution, however, significant questions emerge that require attention. We identify and assess two sets of concerns. The first relates to quantum physics, particularly whether and how quantum occurrences influence mutations and evolution. We argue that the current (...) empirical evidence is ambiguous in its support of the kinds of quantum action that Russell proposes, though emerging data from quantum biology look promising. The second set of concerns is metaphysical, especially concerning the problem of evil. NIODA gives Godextensive agency over evolution and genetics, which has adverse consequences for theodicy. We propose potential solutions to the problems highlighted in our article, both metaphysical and physical, to improve the viability of NIODA's application to theistic evolution. (shrink)

This article analyzes, Polanyi’s notion of authority in science and his criticism of Popper and Russell. It uses the history of early genetics and neo-Darwinism in order to examine the fruitfulness of Polanyi's concepts for an understanding of the history of biology. It discusses the responsibility of scientists in influential positions and shows that scientific authority is – as is criticism – indispensable for progress.

C .H. Waddington was one of the founders of the Theoretical Biology Club at Cambridge in the 1930s whose members advanced a philosophy of biology, “organicism,” that would offer an alternative to the reductionism of mechanistic materialism and the obscurity of vitalism in coming to terms with the dynamic, interdependent, and purposeful character of life. This view was embraced in one form or another by E. S. Russell, John Scott Haldane, C. Lloyd Morgan, Lawrence J. Henderson, C. D. Broad, (...) and Alfred North Whitehead. Waddington, in particular, was devoted to the integration of genetics, development, and evolution within the context of theoretical biology. This article explains the influence of Alfred North Whitehead's philosophy of organism on C. H. Waddington's work. (shrink)

This book is the first monograph in German dealing exclusively with F.C.S. Schiller, until now and even given today‘s "Renaissance of Pragmatism" the most neglected of the classical pragmatists. It tries for the first time to analyse aspects of his oeuvre as a "twofold Humanism": consisting of a more descriptive "methodical humanism" on the one side and a more normative "prophetic humanism" on the other side. These two and irreducible perspectives of Schiller's writing allow him to take into account the (...) human condition not, as most of the interpreters suggest, in a radical but in a holistic manner: man existing as an individual and as a member of society, as an I in relation to God, as a biological fact and as a still not yet realized ideal in the light of multiple forms of criticism and reform. Thus it becomes clear that Schiller's complex thought - logical, ethical, social, educational and metaphysical - cannot be confined to individual aspects, particularly not to the topos of the "theory of truth" as the common "reading" of his writing stereotypically insinuates. Rather, it revolves around the most fundamental question of philosophy as such: concerned with the meaning of life in its entirety, especially in the light of the modern threat of nihilism and pessimism. -/- Table of Contents (translated) -/- 1. Oversight 2. The Philosophically Designated Path into the Abyss 2.1. Agnosticism 2.2. Scepticism 2.3. Pessimism 3. The Methodical Humanism as Possibilism – The Conversion of Thought from Destinity to Possibility 3.1. In the Antechamber of Practice 3.2. Excursion: William James' Concept of the "Will to Believe" 3.3. "All that has become has History" 3.4. The Ethical Unmasking of Knowledge 3.5. Bertrand Russell's Critique of Pragmatism – Ennobling the Human by Degrading him 3.6. "Problems of Belief" – The Complexity of the Person 3.7. The Bilocal Fixation of Philosophy – as Public Office and Private Poetry 3.8. On the Half-Way – Retrospect and Prospect 4. The Prophetic Humanism Consisting in Personalistic Speculation and Genetic Manipulation 4.1. The Speculative Humanism 4.1.1. Naturalizing the Human as Humanizing the Nature 4.1.2. Excursion: The "Personal Idealism" of George Holmes Howison 4.1.3. Schiller's Theatrum Mundi – The World as a Pedagogical Play between God and Man 4.2. The Eugenical Humanism 4.2.1. Putting it on its Feet – Schiller's Political Diagnosis 4.2.2. The Eugenically Reformist March Through the Institutions 4.2.3. Excursion: The Humanistic Mobilization of Religious Reserves in John Dewey's "A Common Faith" 5. Follow-up. (shrink)