To explore how molecules became signs I will ask: “What sort of process is necessary and sufficient to treat a molecule as a sign?” This requires focusing on the interpreting system and its interpretive competence. To avoid assuming any properties that need to be explained I develop what I consider to be a simplest possible molecular model system which only assumes known physics and chemistry but nevertheless exemplifies the interpretive properties of interest. Three progressively more complex variants of this model (...) of interpretive competence are developed that roughly parallel an icon-index-symbol hierarchic scaffolding logic. The implication of this analysis is a reversal of the current dogma of molecular and evolutionary biology which treats molecules like DNA and RNA as the original sources of biological information. Instead I argue that the structural characteristics of these molecules have provided semiotic affordances that the interpretive dynamics of viruses and cells have taken advantage of. These molecules are not the source of biological information but are instead semiotic artifacts onto which dynamical functional constraints have been progressively offloaded during the course of evolution. (shrink)

This study examines the specificvalues held by consumers towards organic andconventionally produced meat, with particularreference to moral issues surrounding foodanimal production. A quota sample of 30 femalesfrom both a rural and an urban area of Scotland, were interviewed. Overall, there was lowcommitment towards the purchase of organicmeats and little concern for ethical issues.Price and product appearance were the primarymeat selection criteria, the latter being usedas a predictor of eating quality. Manyattitude-behavior anomalies were identified,mainly as a result of respondents' cognitivedissonance and (...) lack of understanding regardingmeat production criteria underpinning meatquality marks, e.g., Soil Association label.Responsibilities for ethical issues appeared tobe delegated by the consumer to the meatretailer or government. This raises issuesabout educating consumers and bringingconsumers closer to understanding meatproduction systems. A conceptual framework isproposed that illustrates the significance ofconsumer involvement in how meat-purchasingdecisions are approached in terms of theevaluation of tangible and or intangiblequality attributes. The results also point tothe need for further research into thoseaspects of quality that individuals tend toaddress at the level of the citizen,rather than at the point of purchase. (shrink)

Police killings of unarmed Black people have ignited a national and international response unlike any in decades. But differing from their civil rights-oriented predecessors, today’s activists do not think that the institutions and values of liberal democracy can eradicate structural racism. They draw instead on a Black radical tradition that, Terrence L. Johnson argues, derives its force from its unacknowledged ethical and religious dimensions. We Testify with Our Lives traces Black religion’s sustained influence from SNCC to the present, reconstructing (...) a radical lived ethics of freedom and justice. Johnson demonstrates that Black Power fundamentally contests liberalism’s abstract understanding of democracy, calling instead for new embodied frameworks to achieve human flourishing and dignity. Black bodies represent the primary form of resistance against violent and oppressive regimes of white supremacy and exploitation, and the individual and collective struggles of Black life bear witness to the dogged determination to cultivate beauty, rage, and joy. Considering the writings of Audre Lorde, Toni Cade Bambara, Stokely Carmichael, Martin Luther King Jr., Malcolm X, and James Baldwin, We Testify with Our Lives makes its case through a new narrative of the evolution of Black radicalism from the civil rights movement through the Movement for Black Lives. It forges new insights into Black Power’s vital contributions to debates on ethics, transnational politics, democracy, political solidarity, and freedom—and its potent resources for the ongoing struggle to build democratic possibilities for all. (shrink)

By recourse to the fundamentals of preference orderings and their numerical representations through linear utility, we address certain questions raised in Nover and Hájek 2004, Hájek and Nover 2006, and Colyvan 2006. In brief, the Pasadena and Altadena games are well-defined and can be assigned any finite utility values while remaining consistent with preferences between those games having well-defined finite expected value. This is also true for the St Petersburg game. Furthermore, the dominance claimed for the Altadena game over the (...) Pasadena game, and that would have been claimed for the St Petersburg game over the Altadena, can be contradicted without fear of inconsistency with the axioms of utility theory. However, insistence upon dominance can be made to yield a contradiction of the Archimedean axiom of utility theory. CiteULike Connotea Del.icio.us What's this? (shrink)

Large Language Models (LLMs) have been transformative. They are pre-trained foundational models that are self-supervised and can be adapted with fine tuning to a wide range of natural language tasks, each of which previously would have required a separate network model. This is one step closer to the extraordinary versatility of human language. GPT-3 and more recently LaMDA can carry on dialogs with humans on many topics after minimal priming with a few examples. However, there has been a wide range (...) of reactions and debate on whether these LLMs understand what they are saying or exhibit signs of intelligence. This high variance is exhibited in three interviews with LLMs reaching wildly different conclusions. A new possibility was uncovered that could explain this divergence. What appears to be intelligence in LLMs may in fact be a mirror that reflects the intelligence of the interviewer, a remarkable twist that could be considered a Reverse Turing Test. If so, then by studying interviews we may be learning more about the intelligence and beliefs of the interviewer than the intelligence of the LLMs. As LLMs become more capable they may transform the way we interact with machines and how they interact with each other. Increasingly, LLMs are being coupled with sensorimotor devices. LLMs can talk the talk, but can they walk the walk? A road map for achieving artificial general autonomy is outlined with seven major improvements inspired by brain systems. LLMs could be used to uncover new insights into brain function by downloading brain data during natural behaviors. (shrink)

This paper is about Kant’s late unfinished manuscript, Opus postumum (1796–1803) and some of the resonances it has with Schelling’s early Naturphiloso­phie (1797–1800). Most of the secondary literature on Opus postumum investigates its relation to the rest of Kant’s corpus, often framing the drafts as an attempt to fill a so-called “gap” in the Critical philosophy whilst ignoring the relationship it has to the wider landscape of late eighteenth century German philosophy. Whether Opus postumum may provide grounds for reviewing the (...) relationship between Kant and Schelling’s Naturphilosophie, for example, is rarely discussed. Some scholars have remarked upon the striking parallels between Opus postumum and Naturphilosophie, but there has yet to appear a single monograph-length text on the relation. Whilst certainly “Schelling’s Post-Kantian confrontation with nature itself begins with the overthrow of the Copernican revolution” (Grant 2008, 6), what if Kant was himself overthrowing the Copernican revolution? In this paper, I will outline some of the points of contact to start from in support of posing this question. (shrink)

These four volumes are part of the forty-one volume set _New Accents_. First launched in 1977, the New Accents series rapidly changed the face of literary studies. Its clear and concise volumes brought the latest in literary theory to students and academics and paved the way for undergraduate teaching on essential new topics and approaches.

A consideration of the differences between Shakespearean comedy and tragedy in light of the historically particular inflection of dramatic irony in the English Reformation. The essay compares classical and humanist understandings of literary response and then proposes that we consider that response as a function of knowledge with respect to (and hence feelings about) a protagonist and his plight. The essay compares the structures of suspense in Sophocles’ and Seneca’s Oedipus plays, and then goes on to examine the ways in (...) which two early modern versions of Seneca’s play demonstrate different manners of crafting an audience’s affective relation based on epistemological advantage. The author argues that the peculiarities of these repsonses, and their difference from Shakespeare’s handling of dramatic irony, can be illuminated by the English response to Calvin’s understanding of predestination as a matter of being known about. The analysis concludes with examples from Much Ado About Nothing and Othello that demonstrate the different affective charge of privileged information. (shrink)

It is argued that in approaching the issue of Canada's competitiveness in finished products and services internationally, a singular focus on productivity may be but a symptom of more serious underlying problems. Examples of such problems are provided and the implications and ethical concerns resulting from the probable technical solutions utilized to improve productivity are explored.

A simple molecular system is described consisting of the reciprocal linkage between an autocatalytic cycle and a self-assembling encapsulation process where the molecular constituents for the capsule are products of the autocatalysis. In a molecular environment sufficiently rich in the substrates, capsule growth will also occur with high predictability. Growth to closure will be most probable in the vicinity of the most prolific autocatalysis and will thus tend to spontaneously enclose supportive catalysts within the capsule interior. If subsequently disrupted in (...) the presence of new substrates, the released components will initiate production of additional catalytic and capsule components that will spontaneously re-assemble into one or more autocell replicas, thereby reconstituting and sometimes reproducing the original. In a diverse molecular environment, cycles of disruption and enclosure will cause auto-cells to incidentally encapsulate other molecules as well as reactive substrates. To the extent that any captured molecule can be incorporated into the autocatalytic process by virtue of structural degeneracy of the catalytic binding sites, the altered autocell will incorporate the new type of component into subsequent replications. Such altered autocells will be progenitors of “lineages” with variant characteristics that will differentially propagate with respect to the availability of commonly required substrates. Autocells are susceptible to a limited form of evolution, capable of leading to more efficient, more environmentally fitted, and more complex forms. This provides a simple demonstration of the plausibility of open-ended reproduction and evolvability without self-replicating template molecules or maintenance of persistent nonequilibrium chemistry. This model identifies an intermediate domain between prebiotic and biotic systems and bridges the gap from nonequilibrium thermodynamics to life. (shrink)

Shared views regarding the moral respect which is owed to children in family life are used as a guide in determining the moral permissibility of nontherapeutic clinical research procedures involving children. The comparison suggests that it is not appropriate to seek assent from the preadolescent child. The analogy with interventions used in family life is similarly employed to specify the permissible limit of risk to which children may be exposed in nontherapeutic research procedures. The analysis indicates that recent writers misconceive (...) how certain moral principles, such as respect for personal autonomy, require us to act toward children. The results are also used to assess proposed federal regulations on research with children. (shrink)

Professional Ethics: A Trust-Based Approach explores the unique nature of professional duty and virtue in light of the trust that professionals must invite, develop, and honor from those they intend to serve.

Like many critics of Rawls, Habermas believes that the Original Position (OP) implicitly utilizes normative (and unargued for) assumptions. The author defends the OP by arguing that its basic concepts are the product of a rational reconstruction of the everyday know-how, or common sense, employed by citizens in democratic practices. The author identifies this reconstruction in Rawls's work but suggests that while this answers the charge of circularity, it raises the problem of contextual relativism. It is concluded that Rawls can (...) avoid such relativism only on a stronger commitment to social scientific research in support of a more transcendental form of rational reconstruction. (shrink)

The paper describes the approach by which ethics are integrated into the undergraduate curriculum at Northern Illinois University''s College of Business. Literature is reviewed to identify conceptual frameworks for, and issues associated with, the teaching of business ethics. From the review, a set of guidelines for teaching ethics is developed and proposed. The objectives and strategies implemented for teaching ethics is discussed. Foundation and follow-up coursework, measurement issues and ancillary programs are also discussed.

In the target article “How molecules became signs” I offer a molecular “thought experiment” that provides a paradigm for resolving the major incompatibilities between biosemiotic and natural science accounts of living processes. To resolve these apparent incompatibilities I outline a plausible empirically testable model system that exemplifies the emergence of chemical processes exhibiting semiotic causal properties from basic nonliving chemical processes. This model system is described as an autogenic virus because of its virus-like form, but its nonparasitic self-repair and reproductive (...) dynamics. The 16 commentaries responding to this proposal recognize its material plausibility but are divided on its value in resolving this basic biosemiotic challenge. In response, I have addressed some of the most serious criticisms raised and have attempted to diagnose the major sources of incompatible assumptions that distinguish the autogenic paradigm from other major paradigms. In particular, I focus on four main issues: the significance of the shift from a cellular to a viral perspective, the relevance of intrinsic versus extrinsic initiation and channeling of interpretive work, the insufficiency of molecular replication as a basis for grounding biological semiosis, and a (universal?) three step scaffolding logic that enables referential displacement of sign vehicle properties without loss of referential continuity (as exemplified by DNA-protein relations). Although I can’t conclude that this is the only way that biosemiotic properties can emerge from physical-chemical relations that otherwise lack these properties, I contend that this approach offers a biologically plausible demonstration that it is possible. (shrink)

Contemporary textbooks often define evolution in terms of the replication, mutation, and selective retention of DNA sequences, ignoring the contribution of the physical processes involved. In the closing line of The Origin of Species, however, Darwin recognized that natural selection depends on prior more basic living functions, which he merely described as life’s “several powers.” For Darwin these involved the organism’s capacity to maintain itself and to reproduce offspring that preserve its critical functional organization. In modern terms we have come (...) to recognize that this involves the continual generation of complex organic molecules in complex configurations accomplished with the aid of persistent far-from-equilibrium chemical self-organizing and self-assembling processes. But reliable persistence and replication of these processes also requires constantly available constraints and boundary conditions. Organism autonomy further requires that these constraints and co-dependent dynamics are reciprocally produced, each by the other. In this paper I argue that the different constraint-amplifying dynamics of two or more self-organizing processes can be coupled so that they reciprocally generate each other’s critical supportive boundary conditions. This coupling is a higher-order constraint that effectively constitutes a sign vehicle “interpreted” by the synergistic dynamics of these co-dependent self-organizing process so that they reconstitute this same semiotic-dynamic relationship and its self-reconstituting potential in new substrates. This dynamical co-dependence constitutes Darwin’s “several powers” and is the basis of the biosemiosis that enables evolution. (shrink)

To naturalize the concept of teleological causality in biology it is not enough to avoid assuming backward causation or positing the existence of an inscrutable te- leological essence like the élan vital. We must also specify how the causality of or- ganisms is distinct from the causality of designed artifacts like thermostats or asym- metrically oriented processes like the ubiquitous increase of entropy. Historically, the concept of teleological causality in biology has been based on an analogy to the familiar experience (...) of purposeful action. This is experienced by us as a disposition to achieve a general type of end that is represented in advance, and which regulates the selection of efficient means to achieve it. Inspired by this analogy, to bridge the gap between biology and human agency we describe a simple molecular pro- cess called autogenesis that shows how two linked complementary self-organizing processes can give rise to higher-order relations that resemble purposeful disposi- tions, though expressed in terms of constraints on molecular processes. Because the autogenic model is described in sufficient detail to be empirically realizable, it provides a proof of principle demonstrating a simple form of teleological causality. (shrink)

Two dogmas of liberalism in the therapeutic setting are challenged: (1) that patients have a ready-made ability to act autonomously; and (2) that non-intervention by physicians is the best strategy for protecting the autonomy of patients. Recognition of the impact of illness upon autonomous behavior forms the basis of this challenge. It is suggested that autonomy is better conceived as a process of personal growth by which patients become better able to overcome the disruptive effects of illness. The physician is (...) assigned an active role in the achievement of this therapeutic goal. The implications of this new liberal theory are illustrated by reference to the informed consent issue. (shrink)

Il arrive qu’une complexité extrême mette le modèle de la sélection naturelle au défi d’expliquer quoi que ce soit. Depuis Darwin, l’aptitude humaine au langage est incessamment citée en exemple-type de ce cas de figure. Et ceux qui ont souligné les problèmes posés par cette faculté si spécifiquement humaine n’étaient pas tous des critiques du darwinisme. On sait l’argument avancé par Alfred Russel Wallace, co-instigateur de la théorie de la sélection naturelle, et réputé plus darwiniste que ..

The 18th International Conference on Cognitive Modelling (ICCM 2020) brought together researchers whose goal is to develop computational simulations of the mind, and to use those simulations to test theories about how the mind works. In this special issue, we present four top papers from ICCM 2020. Two of these address the challenge of scaling up to more complex tasks, and the other two address the challenge of scaling down to connect these computational models to neuroscience.

This dissertation concerns Edmund Husserl's theory of meaning. It focuses on Husserl's position as it develops from the Logical Investigations, published in 1900-01, through the writing of the Ideas in 1913. ;I argue that there are two theories of meaning at operation in Husserl's thinking in the Logical Investigations. One which is based upon the theory of pure logical grammar, the other based upon the theory of intentional acts of consciousness. I also consider the way in which Husserl's employs the (...) first of these to account for the distinction between sense and nonsense. ;The second chapter concerns the development of Husserl's thought from 1900 to 1913. In particular, I trace the development of this theory of the pure transcendental ego and its relationship to the notions of the epoche and the reduction. In turn, I consider the phenomenological criticism of this position made by Heidegger and Merleau-Ponty. ;Chapter three is concerned with the way in which the development of Husserl's thinking on the ego impacts on the theory of meaning. In particular, I focus on the developments which appear in the Vorlesungen Uber Bedeutungslehre: Sommersemester 1908 and Ideas I. The most significant development being the introduction of the concept of the noema as the object of the intentional act of meaning. I also consider the recent debate concerning the proper understanding of the noema as well as the relationship between sense and linguistic expression. ;These concerns lead to a consideration of Derrida's influential reading of Husserl's theory of meaning in Speech and Phenomena. While arguing that there is much of value in Derrida's reading, I criticize his claim that Husserl's theory is committed to a theory of pure self presence and intuitive presence. ;Finally, following Derrida, I question Husserl's theory of pure logical grammar. Through a consideration of poetic expression, I consider why this theory is unable to account for the distinction between sense and nonsense. However, I do argue that the intentional act theory can offer a justification for this distinction. For this reason, I conclude that a revised understanding of Husserl's phenomenological approach to meaning is still viable. (shrink)

Cognitive theories have expressed their components using an artificial symbolic language, such as first-order predicate logic, and the atoms in such representations are non-decomposable letter strings. A neural theory merely demonstrates how to implement a classical symbol system using neurons: this is actually an argument against the importance of the neural description. The fact that symbol systems are physically instantiated in neurons becomes a mere implementational detail, since there is a direct way to translate from the symbolic description to the (...) more neurally plausible one. It might then be argued that, while the neural aspects of the theory identify how behavior arises, they are not fundamentally important for understanding that behavior. Classical symbol systems would continue to be seen as the right kinds of description for psychological processes. (shrink)

Christian hope of resurrection requires that the one raised be the same person who died. Philosophers and theologians alike seek to understand the coherence of bodily resurrection and what accounts for numerical identity between the earthly and risen person. I address this question from the perspective of disability. Is a person with a disability raised in the age to come with that disability? Many theologians argue that disability is essential to one's identity such that it could not be eliminated in (...) the resurrection. What anthropology undergirds these claims is not often explicated. I argue that Thomistic hylemorphic anthropology provides the best context to understand the human person such that disability is not essential to identity. In the resurrection, we shall become truly ourselves. The marks of disability may remain, but Thomistic anthropology expresses the coherence of bodily resurrection in which one may hope for healing which eliminates the disability but not numerical identity. (shrink)

Language and information processes are critical issues in scientific controversies regarding the qualities that epitomize humanness. Whereas some theorists claim human mental uniqueness with regard to language, others point to successes in teaching language skills to other animals. However, although these animals may learn names for things, they show little ability to utilize a complex framework of symbolic reference. In such a framework, words or other symbols refer not only to objects and concepts but also to sequential and hierarchical relationships (...) with other symbols. This process is essential to human mental operations, including language, mathematics, and music. In humans, these operations may have coevolved with the prefrontal area of the cerebral cortex, which is proportionately much larger in humans than in other animals and more intricately linked with other areas of the brain. Analysis of the structure and function of the prefrontal area suggests that it is centrally involved in the operation of higher‐order associative relationships involving the subordination of one set of associations to another. This alternate learning strategy apparently appeared at the cost of certain sensory, motor, or limbic abilities. The payoff was symbolic thinking. Humans thus are unique among species, not just for their highly developed language ability but for their odd style of thinking and learning. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:METHOD DIVORCED FROM CONTENT IN THEOLOGY? AN ASSESSMENT OF LONERGAN'S METHOD IN THEOLOGY TERRENCE REYNOLDS Brown University Providence, Rhode Island IN IDS INTRODUCTION to Method in Theology, Bernard Lonergan flatly maintains that he intends to· write not theology but only method in theology.1 He therefore proposes.to concern himself solely with the operations theologians perform and to suspend consideration of the objects they seek to expound. He is looking (...) for "a normative pattern of recurrent and related operations yielding cumulative and progressive results." 2 To arrive at his method, Lonergan relies upon the cognitional theory which he ha,d outlined with great sophistication in Insight. He argues that the dynamism of the human mind and the principles of its operations as revealed by introspective psycihology lead to a model of the nature of scientific method in general and, by extension, to method in theology. It is through the transcendental method that Lonergan discovers in the procedures of the human mind the basic pattern of operations by which wl1l cognitiona1 activity takes plaice. This pattern, he maintains, yields cumulative results in thelogical inquiry as well as in any fie1d of investigation. He therefore intends to demonstrate that theology can be studied in the same manner as any other discipline. Critics have respectfully suggested that, while Lonergan's system is an imposing one, he has introduced unworkable and 1 Bernard Lonergan, Method 4ln Theology (New York, 1979), p. XII. 2 Lonergan, Method, p. 5. 245 246 TERRENCE REYNOLDS misleading distinctions into his work; in particular, he has fa~led to explicate his thoologiicaJ. p11emises and thereby leaves uTIJc!lear the presuppositions upon which his Method rests. Method, they argue, cannot be divorced from theology, and the p11ecise writing of the form.er cannot be carried out without attention to the latter. Avery Dulles, Mauri!Oe Wiles, and Anthony Ke1ly have all leveled the charge that Method suffers from this detaichment of method from content. The purpose of this essay wiH he to discuss Lonergan's achievement in Method in Theology but then to consider the extent to which his critics may be right. Um:Lerstanding Lonergan's methodologiical enterprise requires a familiarity with his cognitionrul theory as delineated in Jnsi,ght, for his complex theory of knowing establishes the anthropology upon whiJCh he grounds his Method. Basically, he pr:obes.for ·the answers to thl"ee questions: 1) What happens when we a11e knowing? 2) Why do we cal~ that knowing? and 3) What is known when that is happening? The ans1wer to the first question yie1ds his cognitionrul theory, the second his epistemology,.and the thi11d his met:aphysics.3 Since •all knowing is a quest.for explanaition, founded upon the ass111mption of the intelligibility of the universe, the on-going search for explanation in the finite sphere implies a finail e:q>i1anation and this is be[ng itseH. In apprehending the processes of cognition, one can begin to recognize the means by which the search for·this reality is universally conducted: Thoroughly understand what it is to understand, and not only will you understand the broad lines of all that there is to be understood, but you will possess a fixed base, an invariant pattern, opening upon all further developments of understanding.4 a Lonergan, Method, p. 25. 4 Bernard Lonergan, Insight (New York, 1957), p. XVIII. Lonergan's cognitional theory draws from the work of Thomas and Kant but moves creatively beyond them in his emphasis upon the dynamism of the human mind and the nature of the reality it perceives and comes to know. For Kant, to whom Lonergan's work is often compared, the mind imposes a conceptual framework and an intelligible order upon that which it seeks to understand METHOD AND CONTENT IN THEOLOGY Lonergan's use of introspective psychology reveals four levds in human consciousness, the empir1ca1, the intellectual, the rationa1l, and the moml. The empirical ~eveJ. concentrates upon experience itself and involves the hasic questioning and intel"est in one's surroundings which all subsequent self-transcende1J1ce presupposes. It is " experiencing one's experiencing, understanding, judging and deciding." 5 Intellectual consciousness considers the elements passed on to it as " unknown " by... (shrink)

The International Conference on Cognitive Modeling brings together researchers from around the world whose main goal is to build computational systems that reflect the internal processes of the mind. In this issue, we present the five best representative papers on this work from our 19th meeting, ICCM 2021, which was held virtually from July 3 to July 9, 2021. Three of these papers provide new techniques for refining computational models, giving better methods for taking empirical data and producing accurate computational (...) models of the cognitive systems that produce them. The other two papers focus on explanation: using models to elucidate the underlying processes affecting cognition in such diverse domains as logical reasoning and the effects of caffeine. (shrink)

The first major advances in the understanding of the neurological bases for language abilities were the results of the study of the brains and behaviors of patients with language impairments due to focal brain damage. The two most prominent pioneers in this field are remembered because their names have become associated with distinctive aphasia (language loss) syndromes and the brain regions associated with them. In 1861 Paul Broca described the damage site in the brain of a patient who had lost (...) the ability to produce articulate speech as a result of a stroke. Broca's aphasia, as it is now commonly called, is produced by damage that involves the inferior left frontal lobe of the brain. It tends to produce both a loss of articulatory skill (sometimes but not always with paralysis) and (as discovered much later) problems with grammar and syntax, including grammatical comprehension under certain conditions. Despite speech production impairments, Broca's aphasics do not have basic word‐ and sentence‐comprehension difficulties, when comprehension is not dependent on syntactic analysis. In 1874 Carl Wernicke demonstrated that damage to the left superior temporal lobe produced a different syndrome of language impairments. Wernicke's aphasia generally spares fluent, syntactic speech but impairs the use and comprehension of content words. Wernicke's aphasics'speech includes inappropriate word substitutions, neologisms, and semantic confusions, and their comprehension is similarly disturbed. These early studies also demonstrated that these aphasic disturbances were almost exclusively associated with damage to the structures of the left cerebral hemisphere, even though anatomically corresponding structures are present on both sides of the brain. However, this is not true of all language functions. Some left‐handed individuals can suffer aphasia from right hemisphere damage, and recent studies of patients with right hemisphere damage without aphasia have demonstrated impairment of their comprehension above the sentence level (e.g., interpretation of jokes and stories) and in the production and interpretation of prosodic features of speech (rhythmic and tonal patterning that conveys emphasis and emotion). (shrink)