Psychotherapy helps one enact ideas about a good life, and therapists practice orientations rooted in their chosen approach. A 'good life' can therefore mean different things depending on the therapy. Building on the philosophy of Charles Taylor, Smith examines the link between therapy, ethics and the root of therapeutic views in comparison to modern, Western ideas about 'living well'. This is one of two complementary volumes. This volume explores the links between therapeutic aims and conceptions of wellbeing. It examines three (...) schools of psychoanalysis to show how similar therapies can be distinguished by their ethics. Smith argues that research shows little distinction ethical visions of psychotherapies and challenges the conception of therapy as a technical intervention for the treatment of circumscribed disorders. A key text for upper level undergraduate, postgraduate students and professionals in the field of psychotherapy, psychoanalysis, theoretical psychology and philosophy of the mind. (shrink)

In his critique of the therapeutic, Taylor argues that therapy fails to engage with the ethical and spiritual significance of human suffering. Therapy’s denial of ethics is representative of a wide...

Psychotherapy helps one enact ideas about a good life, and therapists practice orientations rooted in their chosen approach. A 'good life' can therefore mean different things depending on the therapy. Building on the philosophy of Charles Taylor, Smith examines the link between therapy, ethics and the root of therapeutic views in comparison to modern, Western ideas about 'living well'. This is one of two complementary volumes. This volume builds on the last to explore what it means to engage the different (...) ethics of different therapies by offering a deeper explication of therapeutic ethics. Utilizing Taylor's work on practical reasoning, Smith explores topics like the nature of the ethical argument, the role of ethical intuitions and the value of framing ethical debate as ongoing dialogue. He applies this to therapeutics ethics to show how vital it is to consider the ethical proposals that are present in current theories and practices in order to understand the psychotherapies. A key text for upper level undergraduate, postgraduate students and professionals in the field of psychotherapy, psychoanalysis, theoretical psychology and philosophy of the mind. (shrink)

Proponents of empirically supported treatment have argued that psychotherapists have an ethical obligation to make an EST the first choice in clinical practice. This paper challenges this idea. The EST program assumes a model of therapy as technology or applied science that poorly fits the reality of psychotherapeutic practice. The problems brought to therapy implicate fundamental questions regarding what constitutes a good life. A therapeutic response to such problems is not a technical means to change a circumscribed disorder, but an (...) engagement with the client that has relevance to broader moral concerns. Further, the picture of therapy as technology of change implicitly proposes views of a good life, while not acknowledging that it is doing so. 2012 APA, all rights reserved). (shrink)

I examine the process and outcomes of animal genetic manipulation (‘transgenesis’) with reference to its morally salient features. I consider several objections to transgenesis. I examine and reject the alleged intrinsic wrongness of ‘deliberate genetic sequence alteration’, as I do the notion that transgenesis may lead to human genetic manipulation. I examine the alleged wrongness of killing inherent in transgenesis, and suggest that the concept of ‘replaceability’ successfully justifies such killing, although not for entities deemed to possess ‘personhood’. I examine (...) ‘significant suffering’ associated with transgenesis and propose the radical conclusion that, although it would be wrong to prohibit animal genetic manipulation per se, utilitarians ought to support a ‘default prohibition’ on transgenic experiments that entail significant suffering. (shrink)

Disputes between those holding differing political views are ubiquitous and deep-seated, and they often follow common, recognizable lines. The supporters of tradition and stability, sometimes referred to as conservatives, do battle with the supporters of innovation and reform, sometimes referred to as liberals. Understanding the correlates of those distinct political orientations is probably a prerequisite for managing political disputes, which are a source of social conflict that can lead to frustration and even bloodshed. A rapidly growing body of empirical evidence (...) documents a multitude of ways in which liberals and conservatives differ from each other in purviews of life with little direct connection to politics, from tastes in art to desire for closure and from disgust sensitivity to the tendency to pursue new information, but the central theme of the differences is a matter of debate. In this article, we argue that one organizing element of the many differences between liberals and conservatives is the nature of their physiological and psychological responses to features of the environment that are negative. Compared with liberals, conservatives tend to register greater physiological responses to such stimuli and also to devote more psychological resources to them. Operating from this point of departure, we suggest approaches for refining understanding of the broad relationship between political views and response to the negative. We conclude with a discussion of normative implications, stressing that identifying differences across ideological groups is not tantamount to declaring one ideology superior to another. (shrink)

Civic engagement requires individuals to have both knowledge of democratic principles and the skills for enacting change. Acquiring the knowledge and skills necessary for a productive civic life can be difficult for students if they are not provided conceptual scaffolds and opportunities to practice citizenship. We implemented and studied an activity using Westheimer and Kahne's (2004) citizenship typology during a summer civics institute to help students grapple with their understandings of “good” citizenship. We found (1) students appropriated the language of (...) Westheimer and Kahne's citizenship typology by using it to describe their expanding understandings of citizenship; and (2) students used the citizenship typology to name and make sense of their civic identity. We discuss these findings and reflect on our use of Westheimer and Kahne's citizenship typology as a cognitive scaffold. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:ENVIRONMENTAL THEOLOGYA REVIEW DISCUSSION* KEVIN W. IRWIN The Catholic University ofAmerica Washington, D.C. l UST OVER a decade ago the Norwegian philosopher Arne Naess coined the term deep ecology to encapsulate his challenge that while others have dealt with short-term views of ure and ways of dealing with the ecological crisis,1 he urged a deeper probing of "why, how and where" educational systems, religious bodies, and societies themselves (...) can deal with environ- * The books under discussion are: Leonardo Boff, Ecologia, Mundializacao, Espiritualidade (Sao Paolo: Editora Atica, 1993), English translation by John Cuming, Ecology and Liberation: A New Paradigm (Maryknoll: Orbis, 1995); Denis Edwards, Jesus the Wisdom ofGod: An Ecological Theology (Maryknoll: Orbis, 1995); Catharina J. M. Halkes, New Creation: Christian Feminism and the Renewal ofthe Earth, trans. C. Romanik (Louisville: Westminster/John Knox Press, 1991); Michael J. Himes and Kenneth R. Himes, Fullness of Faith: The Public Significance of Theology (New York/Mahwah: Paulist Press, 1993), especially chapter 5, "Creation and an Environmental Ethic"; Tony Kelly, An Expanding Theology: Faith in a World of Connections (Newtowne: E. J. Dwyer, 1993); Richard N. Fragomeni and John T. Pawlikowski, eds., The Ecological Challenge: Ethical, Liturgical and Spiritual Responses (Collegeville: The Liturgical Press, 1994); Albert J. LaChance and John E. Carroll, eds., Embracing Earth: Catholi.c Approaches to Ecology (Maryknoll: Orbis, 1994); Sean McDonagh, The Greening ofthe Church (London: G. Chapman; Maryknoll: Orbis, 1990); and Passion for the Earth: The Christian Vocation to Promote Justice, Peace and the Integrity ofCreation (London: G. Chapman; Maryknoll: Orbis, 1994). 1 From the outset it is important to clarify terminology and to indicate the meaning of some terms used in this review. In accord with common usage we understand that the term "ecology" (from the Greek oikos, "home") refers to our being at home on the earth, and "ecological crisis" refers to the destruction that has been worked to make the earth/home less inhabitable for a variety of species. "Creation" refers to the whole created world and all living beings as gifts from God the creator. "Environment" refers to the life context in which we live, our habitat as given to us by God and for which we are responsible. 301 302 KEVIN W. IRWIN mental deterioration and devastation.2 That Roman Catholicism has an important contribution to make to this issue3 is clear from recent magisterial statements as well as from the theological literature under review here. For example, in 1990 John Paul II articulated a number of avenues from within the Catholic tradition that relate to the ecological crisis and the Church's corporate responsibility to face it theologically, spiritually, and practically.4 In 1991 the U.S. bishops issued a more focused document, Renewing the Earth, which was drawn largely from the Church's social teaching tradition.5 The purpose of this article is to review some recent Roman Catholic theological literature in English (originally or recently translated) on environmental theology and ethics that can be understood as deep ecology from within mainstream Catholic thought. The contention of these authors is that the ecological crisis is a matter of theology, ethics, and values. Not surprisingly, given the comparative infancy of Catholicism's theological contribution to this issue, these works include collections of essays with a variety of approaches of varying quality, monographs that deal with the issue with greater methodological pre2 "Intuition, Intrinsic Value, and Deep Ecology," The Ecologist 14 (Sept./Oct., 1984): 56 ; also see Devall Bill and George Sessions, Deep Ecology (Layton, Utah: Gibbs Smith, 1985). 3 It is important to note that other Christian faith traditions have offered pertinent and challenging statements on this issue, especially the Orthodox. See, for example, the statement by Patriarch Dimitrios, Orthodoxy and the Ecological Crisis (Geneva: Ecumenical Patriarchate, 1990). 4 See "Peace with God the Creator, Peace with All of Creation," Origins 19 (Dec. 14, 1989): 465-68. This is but one example of John Paul's voice on this issue, which is not univocal. Among other statements, his 1993 Lenten Message is particularly interesting in the way it addresses the devastation caused by "uncontrolled industrial development and the use of technologies which disrupt the balance of nature [that] have caused... (shrink)

That uses of language not only can, but even normally do, have the character of actions was a fact largely unrealised by those engaged in the study of language before the present century, at least in the sense that there was lacking any attempt to come to terms systematically with the action-theoretic peculiarities of language use. Where the action-character of linguistic phenomena was acknowledged, it was normally regarded as a peripheral matter, relating to derivative or nonstandard aspects of language which (...) could afford to be ignored. (shrink)

Two prominent theoretical frameworks in moral psychology, Moral Foundations and Dual Process Theory, share a broad foundational assumption that individual differences in human morality are dispositional and in part due to genetic variation. The only published direct test of heritability, however, found little evidence of genetic influences on moral judgments using instrumentation approaches associated with Moral Foundations Theory. This raised questions about one of the core assumptions underpinning intuitionist theories of moral psychology. Here we examine the heritability of moral psychology (...) using the moral dilemmas approach commonly used in Dual Process Theory research. Using such measures, we find consistent and significant evidence of heritability. These findings have important implications not only for understanding which measures do, or do not, tap into the genetically influenced aspects of moral decision-making, but in better establishing the utility and validity of different intuitionist theoretical frameworks and the source of why people differ in those frameworks. (shrink)

This research examined the influence of social-, genetic-, and brain-based explanations on attributions of others’ behaviors. Participants were university students in Studies 1, 2, and 3. Participants read a vignette about an individual who possessed several undesirable behaviors and answered related questions. The first two studies had within-subjects designs. Participants in Study 1 were provided with social-, genetic-, and brain-based explanations for the individual’s behavior. The order of the genetic- and brain-based explanations was reversed in Study 2. Study 3 used (...) the same materials, but had a between-subjects design where participants were assigned to one of three groups that differed in their explanation: social, genetic, or brain. Participants also completed measures of social desirability and free will beliefs in all three studies. Consistently, biological explanations had more influence than social explanations on ratings of others’ responsibility, capacity for change, and sentencing considerations. There was inconsistent evidence across the three studies, however, that brain-based explanations had more influence than genetic-based explanations. Interestingly, Free will scores were associated with aspects of the individual’s behavior in the social condition but not in the biological conditions. Additional social cognition research is needed to determine whether brain-based explanations are just one specific instantiation of biological explanations or whether they are unique in this regard when it comes to the attributions we make about others’ behaviors. (shrink)

This book provides important philosophical insights concerning the kind of creatures we are such that we can experience something we understand as well-being, with these insights then being applied to various areas of social policy and welfare practice. The author defends what he calls The Ontology of Well-Being Thesis (TOWT), addressing ontological questions about the human condition, and how these questions are fundamental to issues concerning what we might know about human well-being and how we should promote it. Yet, surprisingly, (...) these ontological questions are often side-lined in academic, political, and policy and practice based debates about well-being. Addressing these questions, head-on, six features of the human condition are identified via TOWT: human embodiment, finiteness, sociability, cognition, evaluation, and agency. The main argument of the thesis is that these features reveal the conflicting character of human experiences, which can, in turn, have a profound bearing on our experience of well-being. Notably, it is our conflicting experiences of time, emotion, and self-consciousness, which can potentially help us experience well-being in complex and multi-dimensional ways. The author then applies these insights to various social policies and welfare practices, concerning, for example, pensions, disability, bereavement counselling, social prescribing within health settings, the promotion of mental health, and co-production practices. This book is of importance to philosophers, social policy analysts, and welfare practitioners and is also relevant to the fields of psychology, sociology, politics, and the health sciences. (shrink)

Despite the fact that psychedelics were proscribed from medical research half a century ago, recent, early-phase trials on psychedelics have suggested that they bring novel benefits to patients in the treatment of several mental and substance use disorders. When beneficial, the psychedelic experience is characterized by features unlike those of other psychiatric and medical treatments. These include senses of losing self-importance, ineffable knowledge, feelings of unity and connection with others and encountering ‘deep’ reality or God. In addition to symptom relief, (...) psychedelic experiences often lead to significant changes in a patient’s personality and worldview. Focusing on the case of psilocybin, we argue that the peculiar features of psychedelics pose certain novel risks, which warrant an enhanced informed consent process–one that is more comprehensive than what may be typical for other psychiatric medications. We highlight key issues that should be focused on during the consent process and suggest discussion prompts for enhanced consent in psychedelic psychiatry. Finally, we respond to potential objections before concluding with a discussion of ethical considerations that will arise as psychedelics proceed from highly controlled research environments into mainstream clinical psychiatry. (shrink)

Throughout the Confessions, Augustine repeatedly complains about heresy with a special focus on the heresy he once belonged to, Manicheanism. To those of us who live in a culture in which respectable people rarely, if ever, care about religious orthodoxy to such a degree, these complaints seem rather bizarre. Despite this initial appearance, Augustine presents in the Confessions several plausible reasons for thinking heresy is sinful and, therefore, detrimental to a person’s sanctity and ultimate salvation. In this paper, I argue (...) that Augustine considers heresy sinful because it involves as many as three kinds of idolatry: loving a lie/false conception of God instead of the true God, loving one’s own beliefs more than the Truth, which is God, and loving the worldly praise one receives from developing novel opinions more than God. (shrink)

I examine the positive and negative features of homeopathy from an ethical perspective. I consider: (a) several potentially beneficial features of homeopathy, including non-invasiveness, cost-effectiveness, holism, placebo benefits and agent autonomy; and (b) several potentially negative features of homeopathy, including failure to seek effective healthcare, wastage of resources, promulgation of false beliefs and a weakening of commitment to scientific medicine. A utilitarian analysis of the utilities and disutilities leads to the conclusion that homeopathy is ethically unacceptable and ought to be (...) actively rejected by healthcare professionals. (shrink)

I examine the positive and negative features of synthetic biology (‘SynBio’) from a utilitarian ethical perspective. The potential beneficial outcomes from SynBio in the context of medicine are substantial; however it is not presently possible to predict precise outcomes due to the nascent state of the field. Potential negative outcomes from SynBio also exist, including iatrogenesis and bioterrorism; however it is not yet possible to quantify these risks. I argue that the application of a ‘precautionary’ approach to SynBio is ethically (...) fraught, as is the notion that SynBio-associated knowledge ought to be restricted. I conclude that utilitarians ought to support a broadly laissez-faire stance in respect of SynBio. (shrink)

Recent work suggests that people predict how objects interact in a manner consistent with Newtonian physics, but with additional uncertainty. However, the sources of uncertainty have not been examined. In this study, we measure perceptual noise in initial conditions and stochasticity in the physical model used to make predictions. Participants predicted the trajectory of a moving object through occluded motion and bounces, and we compared their behavior to an ideal observer model. We found that human judgments cannot be captured by (...) simple heuristics and must incorporate noisy dynamics. Moreover, these judgments are biased consistently with a prior expectation on object destinations, suggesting that people use simple expectations about outcomes to compensate for uncertainty about their physical models. (shrink)

Skepticism about ethical expertise has grown common, raising concerns that bioethicists’ roles are inappropriate or depend on something other than expertise in ethics. While these roles may depend on skills other than those of expertise, overlooking the role of expertise in ethics distorts our conception of moral advising. This paper argues that motivations to reject ethical expertise often stem from concerns about elitism: either an intellectualist elitism, where some privileged elite have supposedly special access in virtue of expertise in moral (...) theory; or an authoritarian elitism, where our reliance on experts in ethics risks violation of autonomy and democracy. The paper sketches an anti-elitist conception of ethics expertise in bioethics as continuous with an anti-elitist conception of ethics expertise in common moral practice, undercutting the intellectualism, and then uses this anti-elitist conception to reject arguments that ethical expertise violates autonomy or democracy. An anti-elitist picture of ethical expertise both renders it consistent with our general moral practice and allows us to resist skeptical concerns. (shrink)

In opposition to the premises of Against Homeopathy – a Utilitarian Perspective, all four respondents base their objections on the central claims that homeopathy is in fact scientifically plausible and is supported by empirical evidence. Despite ethical aspects forming the main thrust of Against Homeopathy, the respondents’ focus on scientific aspects represents sound strategy, since the ethical case against homeopathy would be weakened concomitant with the extent to which any plausibility for homeopathy could be demonstrated. The trouble here is that (...) the respondents are attempting to perpetuate a sterile debate. The notion that homeopathic preparations could have any biological effects represents a fringe viewpoint, one not entertained by serious scientists nor supported by reason and evidence.In the present article, I shall endeavour to explain why the respondents do not have a valid case. I will deal firstly with their general approach to scientific plausibility and evidence, and then consider some of the specific claims they have made. Finally, I will answer the philosophical arguments some of the respondents have raised. (shrink)

Debates about the ethics of health care and medical research in contemporary pluralistic democracies often arise partly from competing religious and secular values. Such disagreements raise challenges of balancing claims of religious liberty with claims to equal treatment in health care. This paper proposes several mid-level principles to help in framing sound policies for resolving such disputes. We develop and illustrate these principles, exploring their application to conscientious objection by religious providers and religious institutions, accommodation of religious priorities in biomedical (...) research, and treatment of patients’ religious views in doctor–patient encounters. Given that no sound set of guiding principles yields precise solutions for every policy dispute, we explore how morally sound democracies might deliberatively resolve such policy issues, following our proposed principles. Taken together and carefully interpreted, these principles may help in guiding difficult decision making in the indefinitely large realm where government, medical providers, and patients encounter problems concerning religion and medicine. (shrink)

Researchers have long debated the extent to which an individual’s skin tone influences their perceived race. Brooks and Gwinn demonstrated that the race of surrounding faces can affect the perceived skin tone of a central target face without changing perceived racial typicality, suggesting that skin lightness makes a small contribution to judgments of race compared to morphological cues. However, the lack of a consistent light source may have undermined the reliability of skin tone cues, encouraging observers to rely disproportionately on (...) morphological cues instead. The current study addresses this concern by using 3D models of male faces with typically Black African or White European appearances that are illuminated by the same light source. Observers perceived target faces surrounded by White faces to have darker skin than those surrounded by Black faces, particularly for faces of intermediate lightness. However, when asked to judge racial typicality, a small assimilation effect was evident, with target faces perceived as more stereotypically White when surrounded by White than when surrounded by Black faces at intermediate levels of typicality. This evidence of assimilation effects for perceived racial typicality despite concurrent contrast effects on perceived skin lightness supports the previous conclusion that perceived skin lightness has little influence on judgments of racial typicality for racially ambiguous faces, even when lighting is consistent. (shrink)

Marshall et al. (2024) identify a potential ethical conflict between the principles of beneficence and respect for patient autonomy when patients refuse to remain in an emergency department (ED) fo...

Focusing on present‐day possibilities raised by existing technology, I consider the normative aspects of genetically modifying the human germline from a utilitarian standpoint. With reference to a hypothetical case, I examine the probable consequences of permitting a well‐conceived attempt to correct a disease‐associated gene in the human germline using current CRISPR gene‐editing technology. I consider inter alia the likely effects on utility of creating healthy new lives, of discouraging adoption, and of kickstarting a revolution in human germline genetic modification (HGGM). (...) I reject various objections to HGGM, including claims that the risks of genetic harm outweigh the likely benefits. From this utilitarian analysis, I conclude that strong grounds exist to support intervening in the human germline using current technology. Delay in commencing such work will impose a utility cost, because the longer we wait until commencing the HGGM revolution and moving towards a world of increased utility, the greater will be the quantity of suffering accrued meantime through genetically influenced disease. Nevertheless, considering residual safety concerns and the negative publicity engendered by an ethically problematic recent (2018) first attempt at HGGM, it seems prudent—and ultimately generative of the greatest amount of utility—to delay implementing HGGM for a modest period of time, in the order of 1–2 years. (shrink)

While Kant does not address the problem of induction often attributed to Hume, he does, by way of a transcendental deduction of an a priori principle of reflecting empirical judgment, address a distinct problem Hume raises indirectly. This problem is that induction cannot be justified so long as it presupposes some empirical concept applying to or some empirical principle true of more than one object in nature, a presupposition neither determined by nor founded on reason. I draw on Hume’s positive (...) account of induction to motivate the following objection to Kant: in so far as induction can be justified, there is reason to doubt that it would be so in virtue of any a priori feature. (shrink)

While research has focused on financial and social goals in impact investing, we add to the limited research that focuses on how individuals manage identity multiplicity, defined as three or more role identities. Based on our qualitative study of Christian impact investors, we develop a model of identity multiplicity work, explaining how individuals manage their multiple role identities to reduce identity tensions during the process of impact investing. We find individuals engaged in an interactive, ongoing three-step process of identity multiplicity (...) work: prioritizing one of their salient identities, managing their identity multiplicity interrelationships, and reinforcing their prioritized identity. Investors generally prioritized an identity that was neither financial nor social, but rather religious. We also find this identity work implemented through three novel mechanisms: shadowing, one identity casts a shadow over another thereby enabling the simultaneous pursuit of related goals; distinguishing, all identities are retained and at least a minimum threshold of role expectations are met; and surrendering, partial sacrificing of goals of one identity in favor of another identity based on an individual’s self-reflective importance of the role. Our findings offer new insights to multiple identities, impact investing and business ethics literatures. (shrink)

Why has comedy become one of our most abiding ethical preoccupations as well as a dominant mode of political critique? It is suggested that comedy appeals to contemporary persons because it provides an apt social-aesthetic form through which to face up to living with others at a time when it is hard to bear others or otherness. The article outlines an ethics of modern individuality by developing a theory of comedy as more about building social bonds and finding out what (...) could be shared knowledge and experience than the toppling of dominant modes of thought or repudiating our mutuality with others. Drawing on Georg Simmel’s ‘The Law of the Individual’, the article develops a Simmelian reading of Freud’s Jokes to argue that comedy is one solution to resolving our mutual un-alikeness by way of forging knotted paths toward recognising how we could be alike. (shrink)

This article constructively retrieves St. Anselm of Canterbury’s theory of retributive justice and provides a defense of what can be called the retributive model of hell. In the first part of this article, we develop the place of retributive punishment in Anselm’s thinking and discuss how and when retributive punishment is a good thing. In the second part, we apply Anselm’s thinking on retributive justice to the problem of hell and provide a defense of how hell, defined as a state (...) of receiving retributive, damnatory, and irreversible punishment, is good. We then address a series of objections. Despite some criticism that both Anselm and the retributive model of hell receive in the contemporary literature, Anselm’s account of retributive justice can make unique and constructive contributions to the contemporary discussion of hell; by retrieving and applying Anselm’s thought to the problem of hell, we intend to kill two birds with one stone. (shrink)

Epstein, Flynn, and Martohardjono trivialize the question of access to universal grammar in second language acquisition by arguing against a straw-man version of the no-access position and by begging the question of how second language (L2) knowledge is represented in the mind/brain of an adult L2 learner. They compound their errors by employing a research methodology that fails to provide any relevant evidence.

Recent developments in studies of sperm‐mediated gene transfer (SMGT) now provide solid ground for the notion that sperm cells can act as vectors for exogenous genetic sequences. A substantive body of evidence indicates that SMGT is potentially useable in animal transgenesis, but also suggests that the final fate of the exogenous sequences transferred by sperm is not always predictable. The analysis of SMGT‐derived offspring has shown the existence of integrated foreign sequences in some cases, while in others stable modifications of (...) the genome are difficult to detect. The appearance of SMGT‐derived modified offspring on the one hand and, on the other hand, the rarity of actual modification of the genome, suggest inheritance as extrachromosomal structures. Several specific factors have been identified that mediate distinct steps in SMGT. Among those, a prominent role is played by an endogenous reverse transcriptase of retrotransposon origin. Mature spermatozoa are naturally protected against the intrusion of foreign nucleic acid molecules; however, particular environmental conditions, such as those occurring during human assisted reproduction, can abolish this protection. The possibility that sperm cells under these conditions carry genetic sequences affecting the integrity or identity of the host genome should be critically considered. These considerations further suggest the possibility that SMGT events may occasionally take place in nature, with profound implications for evolutionary processes. BioEssays 27: 551–562, 2005. © 2005 Wiley periodicals, Inc. (shrink)