Connectionist models provide a promising alternative to the traditional computational approach that has for several decades dominated cognitive science and artificial intelligence, although the nature of connectionist models and their relation to symbol processing remains controversial. Connectionist models can be characterized by three general computational features: distinct layers of interconnected units, recursive rules for updating the strengths of the connections during learning, and “simple” homogeneous computing elements. Using just these three features one can construct surprisingly elegant and powerful models of (...) memory, perception, motor control, categorization, and reasoning. What makes the connectionist approach unique is not its variety of representational possibilities or its departure from explicit rule-based models, or even its preoccupation with the brain metaphor. Rather, it is that connectionist models can be used to explore systematically the complex interaction between learning and representation, as we try to demonstrate through the analysis of several large networks. (shrink)

Jecker, et al., argue against rejecting a location for an international bioethics conference based on a “litmus test” for several reasons, ranging from the practical to the theoretical. However, th...

The field of neuroimaging has reached a watershed. Brain imaging research has been the source of many advances in cognitive neuroscience and cognitive science over the last decade, but recent critiques and emerging trends are raising foundational issues of methodology, measurement, and theory. Indeed, concerns over interpretation of brain maps have created serious controversies in social neuroscience, and, more important, point to a larger set of issues that lie at the heart of the entire brain mapping enterprise. In this volume, (...) leading scholars -- neuroimagers and philosophers of mind -- reexamine these central issues and explore current controversies that have arisen in cognitive science, cognitive neuroscience, computer science, and signal processing. The contributors address both statistical and dynamical analysis and modeling of neuroimaging data and interpretation, discussing localization, modularity, and neuroimagers' tacit assumptions about how these two phenomena are related; controversies over correlation of fMRI data and social attributions ; and the standard inferential design approach in neuroimaging. Finally, the contributors take a more philosophical perspective, considering the nature of measurement in brain imaging, and offer a framework for novel neuroimaging data structures. Contributors: William Bechtel, Bharat Biswal, Matthew Brett, Martin Bunzl, Max Coltheart, Karl J. Friston, Joy J. Geng, Clark Glymour, Kalanit Grill-Spector, Stephen José Hanson, Trevor Harley, Gilbert Harman, James V. Haxby, Rik N. Henson, Nancy Kanwisher, Colin Klein, Richard Loosemore, Sébastien Meriaux, Chris Mole, Jeanette A. Mumford, Russell A. Poldrack, Jean-Baptiste Poline, Richard C. Richardson, Alexis Roche, Adina L. Roskies, Pia Rotshtein, Rebecca Saxe, Philipp Sterzer, Bertrand Thirion, Edward Vul The hardcover edition does not include a dust jacket. (shrink)

This article argues that teaching medical and nursing students health care ethics in an interdisciplinary setting is beneficial for them. Doing so produces an education that is theoretically more consistent with the goals of health care ethics, can help to reduce moral stress and burnout, and can improve patient care. Based on a literature review, theoretical arguments and individual observation, this article will show that the benefits of interdisciplinary education, specifically in ethics, outweigh the difficulties many schools may have in (...) developing such courses. (shrink)

As Nair-Collins and Joffe note, the concern that our tests for brain death do not successfully show that all brain functions have stopped is not new (Nair-Collins and Joffe 2023). As our abilities...

I agree fully that a “clearer picture of how vulnerability might manifest and how it can be accommodated, ideally without resorting to mere exclusion from research, is needed” (Friesen et al. 2023,...

: In Engelhardt's secular bioethics, moral obligations derive from contracts and agreements between rational persons, and no infants or children and few adolescents meet Engelhardt's requirements for being a rational person. This is a problem, as one cannot have any direct secular moral obligations toward nonpersons such as infants and adolescents. The Engelhardtian concepts of ownership, indenture, and social personhood, which are meant to allow the theory to accommodate children and adolescents adequately, fail to give an Engelhardtian any actual means (...) of determining the right action to take in difficult cases, even on his or her own terms. Thus, the theory is incapable of determining the morally correct action to take in cases involving children and therefore is unhelpful in dealing with moral questions involving children. (shrink)

After people learn to sort objects into categories they see them differently. Members of the same category look more alike and members of different categories look more different. This phenomenon of within-category compression and between-category separation in similarity space is called categorical perception (CP). It is exhibited by human subjects, animals and neural net models. In backpropagation nets trained first to auto-associate 12 stimuli varying along a onedimensional continuum and then to sort them into 3 categories, CP arises as a (...) natural side-effect because of four factors: (1) Maximal interstimulus separation in hidden-unit space during autoassociation learning, (2) movement toward linear separability during categorization learning, (3) inverse-distance repulsive force exerted by the between-category boundary, and (4) the modulating effects of input iconicity, especially in interpolating CP to untrained regions of the continuum. Once similarity space has been "warped" in this way, the compressed and separated "chunks" have symbolic labels which could then be combined into symbol strings that constitute propositions about objects. The meanings of such symbolic representations would be "grounded" in the system's capacity to pick out from their sensory projections the object categories that the propositions were about. (shrink)

ABSTRACTTeam physicians have a complicated job that involves potentially conflicting obligations to multiple entities. Though responsible for the medical care of the athletes as individuals, they also have obligations to the team that employs them which can include returning athletes to play who are at heightened risk of re-injury. The fact that the athletes and owners have some overlapping interests only complicates this issue. Further, there are strong financial incentives to do what is necessary to obtain and keep a position (...) as a team physician. This article examines dual loyalty and conflict of interest in sports medicine, and argues that there is not now a widely accepted or adequate solution to either. Moving toward a solution will require fairly serious changes in the role of the team physician.Abbreviations: FIMS International Federation of Sports Medicine; NFL National Football League; MVP Most Valuable Player; RGIII Robert Griffin, III. (shrink)

It is commonly assumed that persons who hold abortions to be generally impermissible must, for the same reasons, be opposed to embryonic stem cell research [ESR]. Yet a settled position against abortion does not necessarily direct one to reject that research. The difference in potentiality between the embryos used in ESR and embryos discussed in the abortion debate can make ESR acceptable even if one holds that abortion is impermissible. With regard to their potentiality, in vitro embryos are here argued (...) to be more morally similar to clonable somatic cells than they are to in vivo embryos. This creates an important moral distinction between embryos in vivo and in vitro. Attempts to refute this moral distinction, raised in the recent debate in this journal between Alfonso Gómez-Lobo and Mary Mahowald, are also addressed. (shrink)

The development of a code of ethics for a profession can be an indicator of the coherence and stability of a discipline as a unique and singular entity. Since “bioethics”, as a discipline, is not one profession but many, practiced by persons with not one but many varying responsibilities and training, it has been argued that no code of ethics is possible for the discipline(s) of bioethics. I argue that a code of ethics is possible for bioethics by looking at (...) the nature of the various disciplines and noting necessary overlap between them, and deriving the ethics from the nature of the discipline(s) themselves. I show how this can be done by arguing that strict rules about funding and conflict of interest are necessary for bioethicists. (shrink)

Makins’s analysis of the philosophical justification of decision-making understates and so misinterprets the importance of patient values to ‘the deference principle.’ (Makins N,1, p1) He assesses autonomy and beneficence as two separate arguments in support of deferring to patient preferences, but they only work well considered together. Further, neither the constitutive nor the evidential view of beneficence fully recognises the importance of patient values to understanding the patient’s worldview, which in turn determines what risks and benefits matter most. Revising these (...) arguments enables a much fuller understanding of the importance of patient values to the practice of medicine, which will in turn improve the refinement of the deference principle. Autonomy requires beneficence, and vice versa, for either of them to be sufficient arguments for deferring to patient choices. Focusing on autonomy alone to justify deference overstates the value of choice in and of itself, as good medicine does not pursue just any choices. It seeks informed consent, which means that the choices we truly value are those made while understanding what is importantly relevant to the choice. A well-informed decision includes data about expected side effects and likelihood of beneficial effects; but it also includes knowing the patient’s values and goals. One must know what is actually valuable …. (shrink)

The claims that learning systems must build causal models and provide explanations of their inferences are not new, and advocate a cognitive functionalism for artificial intelligence. This view conflates the relationships between implicit and explicit knowledge representation. We present recent evidence that neural networks do engage in model building, which is implicit, and cannot be dissociated from the learning process.

An anxious resident paged ethics at 2:00 a.m. His patient, Mr. M, a twenty‐nine‐year‐old man with a history of multiple substance abuse, was in the hospital after cardiac arrest and lack of cerebral perfusion. Sadly, the young man probably met the criteria for brain death, but the final apnea test to confirm the diagnosis could not be done for another forty‐eight to seventy‐two hours because the Klonopin in his system might confound the results. The resident's concern, however, addressed a request (...) made by the patient's mother for a sperm harvest. The patient's mother maintained that her son had said he wanted to give her grandchildren. She wished to harvest sperm from him for a future use with an as‐yet‐to‐be‐determined surrogate mother. (shrink)

Jotkowitz, Glick, and Gesundheit (2008) rightly critique Manninen (2006) for an errant analysis of the Groningen protocol. However, they draw conclusions about the protocol itself that are not justified. Because of the nature of the care of infants, the Groningen protocol doesn't break new ethical ground. We already have to treat infants without direct access to their autonomous preferences or values; therefore, we are already making the decisions that Jotkowitz, Glick, and Gesundheit argue we are beginning to take once active (...) euthanasia of infants is allowed. (shrink)