Robert Schwartz

Most of us find the surgeon's surprise at this patient' request understandable, and it is hard to imagine any surgeon acceding to this patient's demand. On the other hand, the patient is right—the surgeon is denying his technical skill because his values are different from those of the patient, whose values the surgeon does not respect. The autonomy of the patient is being limited by the values of the doctor whose own interests, other than his interest in practicing medicine according to his own ethical values, would remain unaffected by his decision to provide the service

In recent papers [1997, in press] I have explored how two seemingly conflicting paradigms inform the conception and study of picture perception. The dominant paradigm, one especially favored by vision theorists, claims that seeing a pictorial representation of an object is, with qualifications, like seeing the object itself. The picture, being a geometrically sanctioned projection of its object, resembles it, or otherwise serves as a mimetic surrogate, “re-presenting” what it depicts [Danto, 1982]. Accordingly, pictorial representation is at its best when, as in trompe l’oeil paintings, viewers can not tell the picture, the stand in or substitute, from the real thing. An alternative paradigm, the symbolic model, championed most forcefully by Nelson Goodman [1968], focuses attention on syntactic and semantic features of pictures. On this account, pictures are importantly allied with other forms of representation, including languages, maps, and music notation, and picture perception is to be understood in this context.

In many countries the debate over the role that physicians may play in ending life has been limited to the judiciary and other law making institutions, professional medical organizations; and academics. Because of their multidisciplinary and diverse membership, ethics committees may be a particularly appropriate venue through which these discussions can be expanded to include a much larger community. In addition, ethics committees generally act in only advisory capacities because they do not actually make decisions, so they may provide a forum for open discussions in ways that the court and the medical boards cannot

Roger Shepard's proposals and supporting experiments concerning evolutionary internalized regularities have been very influential in the study of vision and in other areas of psychology and cognitive science. This paper examines issues concerning the need, nature, explanatory role, and justification for postulating such internalized constraints. In particular, I seek further clarification from Shepard on how best to understand his claim that principles of kinematic geometry underlie phenomena of motion perception. My primary focus is on the ecological validity of Shepard's kinematic constraint in the context of ordinary motion perception. First, I explore the analogy Shepard draws between internalized circadian rhythms and the supposed internalization of kinematic geometry. Next, questions are raised about how to interpret and justify applying results from his own and others' experimental studies of apparent motion to more everyday cases of motion perception in richer environments. Finally, some difficulties with Shepard's account of the evolutionary development of his kinematic constraint are considered. Key Words: apparent motion; circadian rhythms; constraints; ecological validity; evolution; internalizated regularities; kinematic principle.

_Perception_ presents classic essays on the conceptual and theoretical problems in the study of vision. In a style that is accessible to the non-expert, the volume lays out core issues in the theory of vision and then sets up a dialogue on the topics among philosophers and psychologists, past and present. Offers an accessible introduction to perception through key readings. Presents a dialogue among philosophers and psychologists on the science of perception. Contains a comprehensive introduction and provides suggestions for further reading. Useful for readers interested in philosophy, psychology, cognitive science, computer vision, and visual science

As ethics committees become involved in discussing the propriety of euthanasia and assisted suicide, and as healthcare providers begin to seriously consider whether they might ever have a role in hastening the dying process, many have looked to The Netherlands as the only real example of a nation that permits euthanasia in limited circumstances. Unfortunately, partisans in the Dutch debate have often written about the Dutch experience as advocates rather than as neutral observers. Some have argued that euthanasia, which, they claim, is rarely actually practiced, is universally accepted within The Netherlands; others have reported that the Dutch social fabric has been rended irreparably by what they claim, is a practice far more widespread than is generally understood. The debate in the United States has also been colored by a misunderstanding of the legal regulation of euthanasia in The Netherlands

At first glance, the first informed consent case to be decided by the High Court of Australia appears to be little more than a clear and simple description of the substantive law accepted in most American jurisdictions - although that is no small accomplishment in and of itself. In Rogers v. Whitaker, the highest court in Australia succinctly and persuasively rejected informed consent as a species of battery law, accepted it as a form, of ordinary professional negligence law, and adopted the “American” patient-oriented standard for measuring the breach of a healthcare professional's duty to her or his patients. On second look, however, the opinion is an even more significant one because it reveals that the law of informed consent is now based on principles broad enough to create a duty on the part of healthcare providers to offer adequate health education to all of their patients. In Implicitly recognizing the physician's duty to educate her or his patients, the High Court's judgment is consistent with a view increasingly held In the medical and ethical communities that teaching patients about how to maintain their health is just as much a part of the doctor's function as diagnosing and treating disease. It may have taken 2,500 years for medicine to progress from, the Hippocratic notion that physicians should apply treatment to patients who are kept in blissful Ignorance of their condition and Its remedy, but there Is little doubt that medicine finally has entered a post-Hippocratic era

Television pictures of starvation and depredation are not the only way that famine and political instability in the horn of Africa have affected the United States. Many people from that region of the world are seeking political or economic refuge here, and they are exposing us to a culture that is in some ways — most notably, in the practice of female circumcision – so radically different from the prevailing American cultures that we have been stunned. They are also forcing hospital ethics committees to face issues that cannot be resolved by the facile application of the settled principles that have guided those institutions for the past several years. Autonomy and multiculturalism, long the foundations of most ethics committee decision making, have started to give way to a list of formally articulated rights and wrongs – perhaps to a restatement and adoption of rules said to be based in natural law. Female circumcision, argues one newspaper letter writer, “is just a sickening display of male power disguised as legitimate dogma

Recently it has been argued that a model of directed perception provides an alternative to both indirect and direct accounts of the nature of vision. An examination of this proposal serves as a basis for challenging the meaningfulness and empirical import of the theoretical and ontological differences said to separate these models. Although focusing on James Cutting's work, the analysis is meant to speak more generally to the supposed significance of the distinctions among indirect, direct, and directed theories of perception

Over the past year the debate over physician-assisted death has been waged in several courts and legislatures, and before at least one electorate as well. Measure 16, the Oregon Death With Dignity initiative that would permit physician-assisted suicide in some circumstances, was approved by the electorate; but it remains on hold while a permanent injunction issued against it by a Federal judge is reviewed by the United States Court of Appeals. Another Federal court judge's decision that the Washington statute criminalizing physician-assisted suicide was unconstitutional when applied to the case of a competent terminally ill patient in intractable pain, was reversed by a three judge panel of that same United States Court of Appeals

These essays by Robert Schwartz on topics in the theory of vision are written from a pragmatic perspective. The issues and arguments will interest both philosophers and psychologists, covering new ground and bridging gaps between these disciplines. Schwartz begins historically, with discussions of problems raised and solutions offered in Bishop Berkeley's writings on vision, presenting Berkeley's views on spatial perception and the qualitative aspects of sensory experience in the context of recent theoretical and empirical work in vision theory. Schwartz then turns to debates in both the philosophical and psychological literature over the view that perception is inferential and thus "indirect." Critically surveying competing characterizations of the idea of "inferential processes" he argues the need either to reframe radically the question or drop the issue. Next, Schwartz discusses pictorial representation and research on picture perception. Drawing on the work of Nelson Goodman, Schwartz explains and defends the advantages of a symbolic approach to both topics. Finally, he examines the quagmires that often develop when metaphysical concerns about the "real" and our ability to perceive it infect discussions and claims in the theory of vision. After analyzing issues arising in current psychological research on "object" perception, Schwartz turns to debates over the supposed essential nature of colors. An appreciation of the empirical and theoretical work on color perception suggests that there is no single or privileged analysis of the notion of "real colors." Schwartz circles back in the end to what he calls "that old chestnut of the philosophy of perception"--controversies over "the objects of perception"--and takes an Austinian look at the topic

Smokers impose a terrible cost on all of the rest of us. Those who choose to smoke are more likely than nonsmokers to suffer from cancer, heart disease, and a host of other diseases that require intensive and expensive medical intervention. Although they may suffer these diseases, we all pay for their habit through higher healthcare costs, which are reflected in higher insurance premiums, higher taxes, and fewer healthcare resources available for nonsmokers. It is simply unfair for smokers to impose this cost on the rest of us; they should bear this self-induced cost themselves