As documented in Part I, monogenism, the descent of all human beings from Adam and Eve, was closely linked to the Catholic doctrine of original sin throughout the first half of the twentieth century. Theological reservations about polygenism, the more scientifically supported account of human origins through a transitional population, was brought to a head by Pius XII’s 1950 encyclical Humani generis. Although the encyclical allowed discussion of human evolution, polygenism was prohibited because “It does not appear how such a (...) view can be reconciled with the doctrine of original sin.” Nevertheless, during and after Vatican II de facto theological acceptance of polygenism became commonplace even though the prohibition was not withdrawn. While some modern conceptions of original sin make a reliance upon monogenism unnecessary, another school of thought emphasizes a spiritual rather than a biological understanding of the concept. It remains to be seen whether polygenism can be unanimously accepted as a scientific phenomenon that is not theologically threatening. Reflection on the Vatican’s long period of ambivalence about the motion of the earth suggests that a similar prospect can be foreseen for polygenism even though it is subject to development in a manner that geostasis was not. (shrink)

This essay is a critique of a version of progressive creation developed by Michael Chaberek, O. P. He holds that there are exceptions to evolutionary descent due to the supernatural production of “natural species,” taxa that allegedly do not have biological ancestry, are theologically identified with biblical kinds, and are metaphysically characterized by distinct substantial forms. Chaberek’s assertion that these natural species correspond “roughly” to the Linnaean taxa of biological families contradicts modern scientific conclusions regarding the continuity of evolutionary descent. (...) To illustrate this conflict, I examine some of the extensive evidence for the evolutionary origins of families within the Feliformia sub-order. I conclude that Chaberek’s assertion of supernatural progressive creation is a God-of-the-gaps theology burdened by a defensive stance with respect to scientific progress. (shrink)

Working within the framework of Thomistic metaphysics, Mariusz Tabaczek O. P. has developed a version of Catholic theistic evolution that includes speciation, human origins, and the origin of life. He assigns biological evolution to the domain of divine governance rather than that of _creatio ex nihilo_ which only applies to primitive matter and human souls. This article reviews Tabaczek’s work with an emphasis on his argument for the compatibility of hylomorphism and evolutionary change through the eduction of novel substantial forms.

Theological attention to the Catholic doctrine of original sin has a history that extends from the letters of Saint Paul through the Council of Trent and Pius XII’s 1950 encyclical, Humani generis. The doctrine has traditionally been articulated through the Genesis narrative of Adam and Eve as the first human beings from whom all others descend, an account known as monogenism. In the course of the nineteenth century, scientific research into human origins increasingly relied upon polygenism, the descent of humanity (...) from non-human ancestors through a transitional population. Subsequent Catholic engagement with evolution included resistance to polygenism from the Vatican due to a perceived conflict with the doctrine of original sin. Humani generis included a prohibition that remains in place today in spite of widespread de facto acceptance of polygenism among theologians. Understanding the origin and persistence of this disparity stands to benefit from comparison to a corresponding ambivalence toward the sixteenth century Copernican hypothesis of a moving earth, only conclusively resolved in 1992. In Part I of this essay I introduce this historical comparison and describe the origins of monogenism and polygenism terminology in nineteenth century debate over the unity of the human race. I then describe the conceptual changes that transpired during the first half of the twentieth century and the resulting role of polygenism in the nouvelle théologie of the decade prior to Humani generis. Subsequent developments and implications follow in Part II. (shrink)

Building upon Nancy Cartwright's discussion of models in How the Laws of Physics Lie, this paper addresses solid state research in transition metal oxides. Historical analysis reveals that in this domain models function both as the culmination of phenomenology and the commencement of theoretical explanation. Those solid state chemists who concentrate on the description of phenomena pertinent to specific elements or compounds assess models according to different standards than those who seek explanation grounded in approximate applications of the Schroedinger equation. (...) Accurate accounts of scientific debate in this field must include both perspectives. (shrink)

Creationists who object to evolution in the science curriculum of public schools often cite Jonathan Well’s book Icons of Evolution in their support (Wells 2000). In the third chapter of his book Wells claims that neither paleontological nor molecular evidence supports the thesis that the history of life is an evolutionary process of descent from preexisting ancestors. We argue that Wells inappropriately relies upon ambiguities inherent in the term ‘Darwinian’ and the phrase ‘Darwin’s theory’. Furthermore, he does not accurately distinguish (...) between the overwhelming evidence that supports the thesis of common descent and controversies that pertain to causal mechanisms such as natural selection. We also argue that Wells’ attempts to undermine the evidence in support of common descent are flawed and his characterization of the relevant data is misleading. In particular, his assessment of the ‘Cambrian explosion’ does not do justice to the fossil record. Nor do his selective references to debate about molecular and paleontological phylogenies constitute a case against common descent. We conclude that the fossil and molecular evidence is more than sufficient to warrant science educators to present common descent as a well-established scientific fact. We also argue that diagrams depicting the ‘tree of life’ can be pedagogically useful as simplified representations of the history of life. (shrink)

Absorbing biography of the creative and destructive scientific genius and tragic life of Andr?-Marie Amp're.

Darcy's law is a phenomenological relationship for fluid flow rate that finds one of its principle applications in hydrology. Theoretical hydrologists rely upon a multiplicity of conceptual models to carry out approximate derivations of Darcy's law. These derivations provide structural explanations of the law; they require the application of fundamental principles, such as conservation of momentum, to idealized models of the porous media within which the flow occurs. In practice, recognition of the idealized conditions incorporated into models facilitates the empirical (...) clarification of the domain within which the law remains accurate. Structural explanations also contribute to the physical interpretation of phenomenological parameters. (shrink)

Neural correlates exist for a basic component of logical formulae, PREDICATE(x). Vision and audition research in primates and humans shows two independent neural pathways; one locates objects in body-centered space, the other attributes properties, such as colour, to objects. In vision these are the dorsal and ventral pathways. In audition, similarly separable “where” and “what” pathways exist. PREDICATE(x) is a schematic representation of the brain's integration of the two processes of delivery by the senses of the location of an arbitrary (...) referent object, mapped in parietal cortex, and analysis of the properties of the referent by perceptual subsystems. The brain computes actions using a few “deictic” variables pointing to objects. Parallels exist between such nonlinguistic variables and linguistic deictic devices. Indexicality and reference have linguistic and nonlinguistic (e.g., visual) versions, sharing the concept of attention. The individual variables of logical formulae are interpreted as corresponding to these mental variables. In computing action, the deictic variables are linked with “semantic” information about the objects, corresponding to logical predicates. Mental scene descriptions are necessary for practical tasks of primates, and preexist language phylogenetically. The type of scene descriptions used by nonhuman primates would be reused for more complex cognitive, ultimately linguistic, purposes. The provision by the brain's sensory/perceptual systems of about four variables for temporary assignment to objects, and the separate processes of perceptual categorization of the objects so identified, constitute a pre-adaptive platform on which an early system for the linguistic description of scenes developed. Key Words: argument; attention; deictic; dorsal; logic; neural; object; predicate; reference; ventral. (shrink)

The intertwining: the recursion of the seer and the seen -- Artificial intelligence and the phenomenology of flesh -- Aesthetic education and the project of being human -- The intertwining of incommensurables: Yann Martel's life of Pi -- Flesh and the limits of self-making -- Violence and embodiment -- Excessive presence and the image -- Politics and freedom -- Sovereignty and alterity -- Political violence -- Public space -- Sustaining the other: tolerance as a positive ideal -- Forgiveness and incarnation.

Abstract:An integrated and principled neuroethics offers ethical guidelines able to transcend conventional and medical reliance on normality standards. Elsewhere we have proposed four principles for wise guidance on human transformations. Principles like these are already urgently needed, as bio- and cyberenhancements are rapidly emerging. Context matters. Neither “treatments” nor “enhancements” are objectively identifiable apart from performance expectations, social contexts, and civic orders. Lessons learned from disability studies about enablement and inclusion suggest a fresh way to categorize modifications to the body (...) and its performance. The term “enhancement” should be broken apart to permit recognition of enablements and augmentations, and kinds of radical augmentation for specialized performance. Augmentations affecting the self, self-worth, and self-identity of persons require heightened ethical scrutiny. Reversibility becomes the core problem, not the easy answer, as augmented persons may not cooperate with either decommissioning or displacement into unaccommodating societies. We conclude by indicating how our four principles of self-creativity, nonobsolescence, empowerment, and citizenship establish a neuroethics beyond normal that is better prepared for a future in which humans and their societies are going so far beyond normal. (shrink)

Human languages, such as French, Cantonese or American Sign Language, are socio- cultural entities. Knowledge of them (`competence') is acquired by exposure to the ap- propriate environment. Languages are maintained and transmitted by acts of speaking and writing; and this is also the means by which languages evolve. The utterances of one generation are processed by their children to form mental grammars, which in some sense summarize, or generalize over, the children's linguistic experiences. These grammars are the basis for the (...) production of a new avalanche of utterances to which the next generation in its turn is subjected. (This picture is simplified, of course, as generations overlap.) Languages inhabit two distinct and separate modes of existence, which have been called (by Chomsky, 1986) `E-Language' and `I-Language'. E-language is the external observable behaviour --- utterances and inscriptions and manifestations of their meanings. E-language is regarded by some as so chaotic and subject to the vicissitudes of everyday human life as to be a poor candidate for systematic study. (E-Language corresponds to what Chomsky, in earlier terminology, called `performance'.) Out of this blooming buzzing confusion the individual child distils an order internal to the mind; the child constructs a coherent systematic set of rules mapping meanings onto forms. This set of rules is the child's I-Language (where `I' is for `internal'). No two individuals' I-Languages have to be the same, although those of people living in the same community will overlap very significantly. But there will usually be at least some slight difference between the I-language features prevalent in one generation and those prevalent in the next. This is the stuff of language evolution, in the sense of the historical development of individual languages, such as Swedish, Navaho or Zulu. (shrink)

This commentary is in two sections. The first presents some specifically linguistic evidence regarding Dehaene’s statement that, in animals and prelinguistic humans, only very small numbers can be represented accurately 1. The second section contains some more general reflections on Dehaene’s work.

The contention in this paper is that central to Sellars’s famous attempt to fuse the “manifest image” and the “scientific image” of the human being in the world was an attempt to marry a particularly strong form of scientific naturalism with various modified Kantian a priori principles about the unity of the self and the structure of human knowledge. The modified Kantian aspects of Sellars’s view have been emphasized by current “left wing” Sellarsians, while the scientific naturalist aspects have been (...) championed by “right wing” Sellarsians, the latter including William Rottschaefer’s constructive criticisms of my own reconciling interpretation of Sellars. In this paper I focus first on how (1) Sellars’s Kantian conception of the necessary a priori unity of the thinking self does not conflict with his ideal scientific naturalist conception of persons as “bundles” or pluralities of scientifically postulated processes. This then prepares the way for a more comprehensive discussion of how (2) Sellars’s modified Kantian account of the substantive a priori principles that make possible any conceptualized knowledge of a world does not conflict with his simultaneous demand for an ideal scientific explanation and evolutionary account of those same conceptual capacities. Sellars’s own attempted via media synthesis—what I call his “Kantian scientific naturalism”—merits another look from both the left and the right. (shrink)

We discuss what we take to be three possible misconceptions in the foundations of general relativity, relating to: the interpretation of the weak equivalence principle and the relationship between gravity and inertia; the connection between gravitational redshift results and spacetime curvature; and the Einstein equivalence principle and the ability to ``transform away" gravity in local inertial coordinate systems.

Homology can provide strong evidence against exapted learning mechanism (ELM) explanations for psychological and behavioral traits. Homologous traits are constructed by commonly inherited developmental mechanisms. As such, demonstration of homology for a trait argues for its construction by an inherited rather than an exapted developmental process. We conclude that comparative evidence can play an important evidentiary role within evolutionary psychology.

University of North Carolina at Greensboro Most approaches to the philosophy of the natural and social sciences are basedon completed scientific investigations. However, there are many importantcases in science in which testing is incomplete. These cases are termed suspendedtrials and are particularly significant in biomedical and allied health fields. Initially,the authors' interest in suspended trials was piqued by a controversialmethod for assisting autistic children known as facilitated communication. Thisarticle examines facilitated communication and other examples of suspendedtrials from the perspective of (...) an economics of science and game theory. Themodel is consistent with recent evolutionary approaches to the philosophy ofthe natural and social sciences and with recent contributions to an economicunderstanding of science. Key Words: clinical trials • innovative therapies • economics of science • suspended trials • facilitated communication • economics of clinical research. (shrink)

This collection of 20 original chapters by leading researchers examines the cognitive unconscious from social, cognitive, and neuroscientific viewpoints, presenting some of the most important developments at the heart of the new picture of the unconscious.

Accounts of the relation between theories and models in biology concentrate on mathematical models. In this paper I consider the dual role of models as representations of natural systems and as a material basis for theorizing. In order to explicate the dual role, I develop the concept of a remnant model, a material entity made from parts of the natural system(s) under study. I present a case study of an important but neglected naturalist, Joseph Grinnell, to illustrate the extent to (...) which mundane practices in a museum setting constitute theorizing. I speculate that historical and sociological analyses of institutions can play a specific role in the philosophical analysis of model-building strategies. (shrink)

Neuroethics applies cognitive neuroscience for prescribing alterations to conceptions of self and society, and for prescriptively judging the ethical applications of neurotechnologies. Plentiful normative premises are available to ground such prescriptivity, however prescriptive neuroethics may remain fragmented by social conventions, cultural ideologies, and ethical theories. Herein we offer that an objectively principled neuroethics for international relevance requires a new meta-ethics: understanding how morality works, and how humans manage and improve morality, as objectively based on the brain and social sciences. This (...) new meta-ethics will simultaneously equip neuroethics for evaluating and revising older cultural ideologies and ethical theories, and direct neuroethics towards scientifically valid views of encultured humans intelligently managing moralities. Bypassing absolutism, cultural essentialisms, and unrealistic ethical philosophies, neuroethics arrives at a small set of principles about proper human flourishing that are more culturally inclusive and cosmopolitan in spirit. This cosmopolitanism in turn suggests augmentations to traditional medical ethics in the form of four principled guidelines for international consideration: empowerment, non-obsolescence, self-creativity, and citizenship. (shrink)

This paper compares the ethical decisions and attitudes of business students and practitioners. Recent unpublished data from a national study of over 1600 students are contrasted with information reported previously. Students are found consistently to make less ethical choices than practitioners, and there is some indication that students are making less ethical choices in the 1980s than in the 1960s. In addition, both students and practitioners agree that buyers should beware, view the role of business more narrowly, and find fewer (...) incentives to behave ethically over time. Codes of ethics appear to be less influential than the individual''s strong personal value system and one''s superiors behaving ethically; support for codes is declining. The paper concludes with observations about the limitations and possibilities for survey research in this area drawing on other studies that used the same instrument utilized for this paper. Some implications for future research are suggested. (shrink)

At the center of both Humean and Kantian experience is a connection between the objectivity of perception and the concept of substantial identity. In the course of examining both systems as responses to structurally similar problems of perceptual objectivity, I argue that Kant's conception of substantial persistence is superior to Hume's account of the idea of identity. ;There are deep tensions in Hume's account of perception that are partially explicable in terms of his complex and naturalistic 'moderate scepticism' and the (...) conflict in the faculties of causal reasoning and imagination upon which it rests. Despite the subtlety of his explanatory scepticism, however, there remains a damaging vacillation in Hume between perceptible phenomena understood as the objects of 'vulgar' direct realism on the one hand, and as the subjective images of the causal-representationalist philosophy on the other. There are also difficulties with Hume's idea of perfect identity, the foundation of both the vulgar and philosophical systems of belief in body. Starting from an assumption of radical perceptual diversity, Hume unsuccessfully attempts to build an idea of substantial identity upon the fiction of a duration without change. ;The tension in Hume concerning the direct objects of perception is paralleled by the subjective/objective ambiguity of Kant's perceptual content terms. In Kant, however, the ambiguity reflects a coherent account of conceptualization, perceptual judgment, and self-conscious temporal experience. I examine Kant's arguments for the persistence and absolute permanence of substance and show that they are largely successful if premises are supplied from the general account of objective judgment and the unity of consciousness. ;Hume's theory of perceptual belief is ingenious but ultimately unsatisfactory according to his own criteria. His failure to construct an idea of identity upon a fictitious duration casts favorable light on Kant's contention that substantial identity is a condition on having any cognition of duration. The two philosophers' dispute concerning identity is conceptually connected to their differing treatments of the 'given' element in perception. (shrink)

Millennials are a powerful workforce group and are quickly becoming established business leaders, consumers, and investors. Yet, millennials are often described as a uniformly homogeneous generation, despite mounting evidence of variances across their private and workplace behaviors, attitudes and preferences, and personal values. This article examines the personal value orientations of millennials in the Unites States, reporting consistencies, variations, and contrasts based on a large sample drawn from seven diverse universities. Results of this article suggest more similarities across a national (...) population of millennials than differences, suggesting a national identity among American millennials. Practical implications of our findings and future research are discussed. (shrink)

Altruism and cynicism are two fundamental algorithms of moral decision-making. This derives from the evolution of cooperative behavior and reciprocal altruism and the need to avoid being taken advantage of. Rushton (1986) developed a self-report scale to measure altruism, however no scale to measure cynicism has been developed for use in ethics research. Following a discussion of reciprocal altruism and cynicism, this article presents an 11-item self-report scale to measure cynicism, developed and validated using a sample of 271 customer-service and (...) sales personnel. (shrink)

Appropriate concerns about cost and unequal access to healthcare have resulted in the creation of powerful managed networks seeking to share the risks of high healthcare costs among plans, providers, and patients. Much to their credit, these managed networks have slowed the rise in healthcare spending by as much as 44% in markets with high HMO penetration. However, whether these savings will materially improve access and quality remains to be seen.