The present study investigates the types of verb and symbolic representational strategies used by 10 deaf signing adults and 13 deaf signing children who described in Italian Sign Language 45 video clips representing nine action types generally communicated by five general verbs in spoken Italian. General verbs, in which the same sign was produced to refer to several different physical action types, were rarely used by either group of participants. Both signing children and adults usually produced specific (...) depicting predicates by incorporating, through a representational strategy, the object and/or the modality of the action into the sign. As for the different types of representational strategies, the adults used the hand-as-object strategy more frequently than the children, who, in turn, preferred to use the hand-as-hand strategy, suggesting that different degrees of cognitive complexity are involved in these two symbolic strategies. Addressing the symbolic iconic strategies underlying sign formation could provide new insight into the perceptual and cognitive processes of linguistic meaning construction. The findings reported here support two main assumptions of cognitive linguistics applied to sign languages: there is a strong continuity between gestures and language; lexical units and depicting constructions derive from the same iconic core mechanism of sign creation. (shrink)

In sensorimotor integration, representation involves an anticipatory model of the action to be performed. This model integrates efferent signals (motor commands), its reafferent consequences (sensory consequences of an organism’s own motor action), and other afferences (sensory signals) originated by stimuli independent of the action performed. Representation, a form of internal modeling, is invoked to explain the fact that behavior oriented to the achievement of future goals is relatively independent from the immediate environment. Internal modeling explains (...) how a cognitive system achieves its goals despite variations in the environment with insufficient and noisy sensory–perceptual data. In a self that acts intentionally on the environment, knowledge is dependent upon the necessity to guide actions directed toward an aim. The self-inner model, a representation of internal and external environments (including reafferent and afferent messages) and also of the behavior plans and desirable future states (aims) and efferent intentions (motor planning and motor command messages), is intrinsically linked to a thinking capacity, which is supposed to emerge from the binding of multiple influences. Thinking emerges when higher behavior strategies are considered possible and capable of leading to aims or the fulfillment of intentions. In this model, symbolization processes are projective and anticipatory and, in this way, beyond present referents. Symbolization occurs linked to action planning, command, and regulation in mental simulation. Meaning is related to an inner sense of a self that acts over the environment. (shrink)

The ability to anticipate team members' actions enables joint action towards a common goal. Task knowledge and mental simulation allow for anticipating other agents' actions and for making inferences about their underlying mental representations. In human–AI teams, providing AI agents with anticipatory mechanisms can facilitate collaboration and successful execution of joint action. This paper presents a computational cognitive model demonstrating mental simulation of operators' mental models of a situation and anticipation of their behavior. The work proposes two successive (...) steps: (1) A hierarchical cluster algorithm is applied to recognize patterns of behavior among pilots. These behavioral clusters are used to derive commonalities in situation models from empirical data (N = 13 pilots). (2) An ACT-R (adaptive control of thought - rational) cognitive model is implemented to mentally simulate different possible outcomes of action decisions and timing of a pilot. model tracing of ACT-R allows following up on operators' individual actions. Two models are implemented using the symbolic representations of ACT-R: one simulating normative behavior and the other by simulating individual differences and using subsymbolic learning. Model performance is analyzed by a comparison of both models. Results indicate the improved performance of the individual differences over the normative model and are discussed regarding implications for cognitive assistance capable of anticipating operator behavior. (shrink)

We study definable irreducible actions of SL₂(K) on an abelian group of Morley rank ≤ 3rk(K) and prove they are rational representations of the group.

This article examines and presents examples of contemporary advertising within the medical and health professions that continue the process and organisation of knowledge about women and their reproductive bodies. It draws on feminist and poststructural perspectives to inform a critical evaluation of the visual representations of menopausal women and hormone replacement therapy. These representations work to construct certain definitions of the feminine that sustain and support existing contradictory cultural meanings and values about menopause. I argue that the images continue to (...) misrepresent and define what forms of femininity and sexual gender are desirable and acceptable for menopausal women. The article addresses the problems of gender discrimination and bias within the advertising industry, and illustrates the ways in which readers of visual texts may be influenced by stereotypic assumptions concerning a woman's lived experience of menopause. It illustrates how specific symbolic images directed towards men and women for hormone replacement therapy, testosterone deficiency and sexual dysfunction influence the viewer's decision making and action responses. (shrink)

In recent years, the relationships between systems of symbolic representations and cities have given rise to an often rich and stimulating consideration among various specialists in human sciences, namely, historians, anthropologists, semiologists and sociologists, among others. Urban conglomerates can no longer be conceived as simple assemblages of more or less functional constructions. The city is as much a mental concept as it is a physical reality. It is made up of images that give it a meaning. It does not (...) exist independently of the sum of subjective interpretations that are continually made by its inhabitants. Our Western perception of the city may be influenced by romanesque literature or the memory of a painting, in other words, by imaginary worlds. It varies according to individual memory: each of us is attached to the different urban spaces of his souvenirs, emotions arising from family history or the duration of a lifetime. These personal projections are all the more important because they command a certain number of daily actions and furnish a framework of orientation to every citizen. They contribute to giving a moral quality to urban space and transform physical objects into concepts, into more or less determined signs. (shrink)

The performative representation of the Spanish Roma woman reveals a historical journey that brings her closer to many symbolic elaborations of the feminine, giving her a special affinity with the imaginary concerning the colonized woman, particularly with the Orientalist vision. Developed initially by the travelling intellectuals in Spain who sought a fusion of the topics of sexualized exoticism, the myth was reworked by local artists and thinkers without undermining their power to silence and make invisible the reality of (...) the most vulnerable and most represented members of the ethnic group, their women. Today, a growing awareness of the importance of collective action directs Roma women to initiatives such as the revision of their historical memory, at the intersection between the external gaze and self-perception. These searches lead to the pioneering creation of community museum institutions, which have arisen around feminine Roma associations and are a symptom of an emerging desire to be heard. Based on the terminological tools shared by women and memory studies, this article seeks the personal dimension of this invitation to listen. The authors analyse a series of interviews with Roma women that investigate the social agents of representation, self-representation and their conceptual and experiential foundations. (shrink)

This paper, starting from the awareness of the anthropological finitude, aims to investigate the symbolic meaning of the catastrophe in today's society. With reference to E. De Martino’s and G. Anders’s anthropo - philosophical theses, the paper analyzes the representation of present catastrophes as Apocalypses without eskaton , in which the "blindness" of man and his inability to react is manifested. Both technological catastrophes directly caused by man and environmental disasters indirectly produced by anthropic neglect causes a widespread (...) sense of powerlessness, leaving man devoid of theoretical and practical means to guide his action. This implies, however, the necessity to widen human "feel" and the ability to understand the "meaning" of our actions in the world. This paper aims to examine all these issues through an ecocritic analysis of the novel The Road by C. McCarthy, in order to show that there is still a deeply human way to experience the fragility and to represent the catastrophe. (shrink)

The concept of narrative matters to hermeneutics for two reasons. First, whatever else hermeneutics is, it is the practice and theory of the interpretation of texts. But narrative also matters to hermeneutics for a deeper reason. Hermeneutics is not just the interpretation of texts; it is also a philosophical outlook, one that sees the topics of meaning and interpretive understanding as central to the business of philosophy. Hence, the study of narrative presents specialized versions of many of the questions that (...) have been raised about hermeneutics as a philosophical outlook. Its different meanings all orbit around a core meaning connected with the symbolic representation of action. Even White, who calls narratives verbal fictions, thinks these fictions can say something true. Finally, the relationship between narratives and reality is difficult to clarify, because narratives describe an order that inheres in things themselves but that is transformed in being brought to language. (shrink)

In this wide-ranging book the author presents his critique of the contemporary portrayal of cognition, an analysis of the conceptual foundations of cognitive science and a proposal for a new concept of the mind. Shanon argues that the representational account is seriously lacking and that far from serving as a basis of cognitive activity, representations are the products of such activity. He proposes an alternative view of the mind in which the basic capability of the cognitive system is not the (...) manipulation of symbols but rather action in the world. His book offers a different outlook on the phenomenon of consciousness and presents a new conception of psychological theory and explanation. This revised second edition includes a new Postscript. (shrink)

Introduction There are some exceptions, which we shall see below, but virtually all theories in psychology and cognitive science make use of the notion of representation. Arguably, folk psychology also traffics in representations, or is at least strongly suggestive of their existence. There are many different types of things discussed in the psychological and philosophical literature that are candidates for representation-hood. First, there are the propositional attitudes – beliefs, judgments, desires, hopes etc. (see Chapters 9 and 17 of (...) this volume). If the propositional attitudes are representations, they are person-level representations – the judgment that the sun is bright pertains to John, not a subpersonal part of John. By contrast, the representations of edges in V1 of the cerebral cortex that neuroscientists talk about and David Marr’s symbolic representations of “zero-crossings” in early vision (Marr 1982) are at the “sub-personal” level – they apply to parts or states of a person (e.g. neural parts or computational states of the visual system). Another important distinction is often made among perceptual, cognitive, and action-oriented representations (e.g. motor commands). Another contrast lies between “stored representations” (e.g. memories) and “active representations” (e.g. a current perceptual state). Related to this is the distinction between “dispositional representations” and “occurrent representations.” Beliefs that are not currently being entertained are dispositional, e.g. your belief that the United States is in North America - no doubt you had this belief two minutes ago, but you were not consciously accessing it until you read this sentence. Occurrent representations, by contrast, are active, conscious thoughts or perceptions. Which leads us to another important distinction: 1 between conscious and non-conscious mental representations, once a bizarre-sounding distinction that has become familiar since Freud (see Chapter 4 of this volume). I mention these distinctions at the outset to give you some idea of the range of phenomena we will be considering, and to set the stage for our central “problem of representation”: what is a mental representation, exactly, and how do we go about deciding whether there are any? We know there are public representations of various kinds: words, maps, and pictures, among others.. (shrink)

This paper focuses on how human complex imitation and its developmental processes are related to the abilities for action representation, acquisition of symbols, and language. After overviewing the characteristics of imitation in chimpanzees and humans, I propose a model of imitation emphasizing how these two species differ in the ways they process visual-motor information. These differences may in turn contribute to core interspecies differences in higher-order cognitive functions, not only for bodily imitation but for action understanding through (...) complex referential information from faces, sharing symbols, and language. This ‘developmental-comparative’ approach reveals the development of species-specific intelligences, and shows what is shared and not shared between humans and other primates. In doing so, we can obtain a more complete understanding of the emergence of the ‘language-ready brain’ in relation to its biological and evolutionary foundations. (shrink)

For as long as there has been anything called “the philosophy of action,” its practitioners have accounted for action in terms of an associated kind of explanation. The alternative to this approach was noticed, but not adopted, by G. E. M. Anscombe. Anscombe observed that a series of answers to the reason-requesting question “Why?” may be read in reverse order as a series of answers to the question “How?” Unlike answers to the question “Why?”, answers to the question (...) “How?” are not explanatory of what they are about: they reveal, not reasons for doing something, but ways of doing something, and they have the form of what Aristotle called a practical syllogism. The alternative to theorizing action in terms of explanation, is, thus, to theorize it in terms calculation. In exploring this alternative, I argue for three main theses: first, that (pace Anscombe) it is not a matter of indifference whether we theorize action in terms of the question “Why?” or in terms of the question “How?”; second, that the question “Why?” is a question for an observer of action (the agent already knows the answer and can learn nothing from the inquiry), whereas the question “How?” is a question for the agent—and moreover, one that the agent must answer in order to achieve any end whatsoever—so that part of what is at stake is the standpoint from which action is to be theorized; and finally, that the standpoint of the agent, revealed by the question “How?”, is prior to that of an observer. (shrink)

This article is the second step in our research into the Symbol Grounding Problem (SGP). In a previous work, we defined the main condition that must be satisfied by any strategy in order to provide a valid solution to the SGP, namely the zero semantic commitment condition (Z condition). We then showed that all the main strategies proposed so far fail to satisfy the Z condition, although they provide several important lessons to be followed by any new proposal. Here, we (...) develop a new solution of the SGP. It is called praxical in order to stress the key role played by the interactions between the agents and their environment. It is based on a new theory of meaning—Action-based Semantics (AbS)—and on a new kind of artificial agents, called two-machine artificial agents (AM²). Thanks to their architecture, AM2s implement AbS, and this allows them to ground their symbols semantically and to develop some fairly advanced semantic abilities, including the development of semantically grounded communication and the elaboration of representations, while still respecting the Z condition. (shrink)

Representation is a central part of models in cognitive science, but recently this idea has come under attack. Researchers advocating perceptual symbol systems, situated action, embodied cognition, and dynamical systems have argued against central assumptions of the classical representational approach to mind. We review the core assumptions of the dominant view of representation and the four suggested alternatives. We argue that representation should remain a core part of cognitive science, but that the insights from these alternative (...) approaches must be incorporated into models of cognitive processing. (shrink)

Abstract Since their inception, distributional models of semantics have been criticized as inadequate cognitive theories of human semantic learning and representation. A principal challenge is that the representations derived by distributional models are purely symbolic and are not grounded in perception and action; this challenge has led many to favor feature-based models of semantic representation. We argue that the amount of perceptual and other semantic information that can be learned from purely distributional statistics has been underappreciated. (...) We compare the representations of three feature-based and nine distributional models using a semantic clustering task. Several distributional models demonstrated semantic clustering comparable with clustering-based on feature-based representations. Furthermore, when trained on child-directed speech, the same distributional models perform as well as sensorimotor-based feature representations of children’s lexical semantic knowledge. These results suggest that, to a large extent, information relevant for extracting semantic categories is redundantly coded in perceptual and linguistic experience. Detailed analyses of the semantic clusters of the feature-based and distributional models also reveal that the models make use of complementary cues to semantic organization from the two data streams. Rather than conceptualizing feature-based and distributional models as competing theories, we argue that future focus should be on understanding the cognitive mechanisms humans use to integrate the two sources. (shrink)

This article discusses the importance of social interaction for the development of the representations for symbolic communication. We suggest that there is no need to distinguish between different representational systems emerging at different stages of development. Instead, we propose that representations are rich right from the beginning of a child’s life, and that they are driven mainly by acting and interacting in the physical and social world. The more variety in a child’s interactional experience (i.e., synchrony, sequentiality, and prediction), (...) the more enriched and abstracted the representations become. We review literature providing evidence for the ways in which infants’ development toward symbolic communication benefits from repeated social (inter)action and consider some implications for computational approaches. (shrink)

Let me attempt a drastic summary, or symbolic reduction, of Mr. Foss's adeptly metaphorical exposition. The use of the copula is, implicit in the appositive series, will do some violence to the complexity of the argument, but since causes and parts are frowned on by the same argument, the simpler arrangement cannot be altogether out of keeping. In logical and grammatical terms, we have on two sides of a profound ledger: "symbolic reduction," the divisive subject and predicate,--and "metaphoric (...) process," the underlying and unifying energy of the proposition, the subjectum. The negations of dialectic operate to show the insufficiency of symbolic concepts and are the "door to philosophic truth." And in ontological terms, we have on the one hand number, time, space, cause and effect, coincidence and contingency; and on the other the different, the naught, the apeiron, the potential, the tension of process, freedom and necessity in metaphoric lawful unity. There are two closely similar extremes of reduction between which one locates the transcendent philosophy of metaphor: that of sensationalism, the philosophy of the brute and atomic, and that of rationalism, the philosophy of expedient action. And in more or less theological terms, we have on the one hand the environment and its complement the ego, purposive and possessive; on the other, World, the I and the Thou, prayer, sin and grace in the metaphorical unity of consciousness, the widening power of personality in intercession or metaphorical representation. On the one hand, birth and death, past and future, and a present extending ad libitum into either; on the other, the eternal present of the integrated process stretching over past and future, expressed in its purest form in art. And so in aesthetic terms: on the one hand catharsis, a rationalized mixture of the ego's pleasure and pain, asceticism and hedonism, play; on the other, drama--especially tragedy, which par excellence action--Eudaimonia, purification, artistic distance, stylization, imagination, conscience, love. On the one hand, comedy in the sense of farce, environment symbolically reduced, actions and persons according to type, the mechanism of means and ends, rules, rituals, tricks, chance, the caricature of symbolic fixation--producing laughter: on the other hand, true and great comedy, the attempt to understand life in all its contradictions, producing the smile. (shrink)

The present article is an attempt to bring together the development of mental activity and consciousness in the framework of the organism-environment theory (Jarvilehto, 1998a, 1998b, 1999); the main question is how the development of mental activity and consciousness can be formulated if the starting point is not the separation of man and environment as in traditional cognitive psychology, but a unitary organism-environment system. According to the present formulation, mental activity is conceived as activity of the whole organism-environment system and (...) connected to the general development of life as a specific form of an organism-environment system comprising neurons. The advent of consciousness is regarded as a result of co-operation of such organism-environment systems. Consciousness is based on co-operation for the achievement of common results, and shared by the co-operating individuals (general consciousness), although each individual also makes it concrete from the perspective of his/her own body in the act of participation in common results (personal consciousness). Language is the means of formation of the co-operative system in the achievement of common results, and it is suggested that the use of language is related more to the type of co-operative system and intended common results than to any symbolic representation of the world. It is claimed that on this basis it is possible to develop psychology which takes seriously the concepts of mental activity and consciousness in the description of human action, but does not reduce these concepts either to biological or social factors. The present formulation should be regarded more as a conceptual outline than as a full-blown theory. (shrink)

Resumen En este trabajo se desarrolla una aproximación epistemológica a las significaciones sociales, comprendidas como una entidad central que urde la composición simbólica de la realidad. Para ello, se despliega un trabajo teórico y reflexivo con el objetivo de esclarecer las tres significaciones sociales que aquí se establecen: imaginarios sociales, representaciones sociales y re-presentaciones discursivas. Al mismo tiempo, se procura presentar una taxonomía en planos de significación, correspondiente a las particularidades y ámbitos de acción de los imaginarios sociales (plano profundo), (...) representaciones sociales (plano medio de transición) y re-presentaciones discursivas (plano superficial). Este trabajo epistémico, que aporta en la clarificación conceptual de las tres nociones tratadas, ofrece un sustento teórico para futuras investigaciones y una nueva forma de abordar las significaciones sociales. Abstract In this work, an epistemological approach to social meanings is developed, understood as a central entity that weaves the symbolic composition of reality. To do this, a theoretical and reflective work is deployed with the aim of clarifying the three social meanings established here: social imaginaries, social representations, and discursive re-presentations. At the same time, it seeks to present a taxonomy in planes of meaning, corresponding to the particularities and fields of action of social imaginaries (deep plane), social representations (middle plane of transition) and discursive re-presentations (superficial plane). This epistemic work, which contributes to the conceptual clarification of the three notions discussed, offers theoretical support for future research and a new way of approaching social meanings. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:LANGUAGE, COMMUNICATION, AND REPRESENTATION IN THE SEMIOTIC OF JOHN POINSOT1 }AMES BERNARD MURPHY Dartmouth College Hanover, New Hampshire 1) Language and the Semiotic of John Poinsot HE SEMIOTIC of John Poinsot is to the study of gns what physics is to the study of nature. Physics is oth the most fundamental and the most general science of nature. All natural processes, from the motion of planets to the (...) division of cells, are governed by, but not only by, laws of physics. Similarly, the semiotic of John Poinsot (traditionally known by his Dominican name, John of St. Thomas) is the most fundamental and general science of signs. The actions of all signs -from natural signs such as footprints and symptoms of disease, to signs of communication, such as logical operators and linguistic signs, to signs in cognition, such as concepts and percepts -are governed by, but not only by, the fundamental relational logic of semiosis set forth in his Ars Logica [1632]. If C. S. Peirce can be said to give us a chemistry of sixty-six signcompounds, John Poinsot, suitably revised, gives us the basic physical laws of motion that bring sign, object, and mind into relation.2 i The author would like to acknowledge gratefully the fellowships received from the American Council of Learned Societies and from Dartmouth College supporting the research of this article. I also wish to acknowledge the help of my research assistant, Daniel Glazer, in hunting down many essential books and articles. John Deely assisted by correcting my discussion of some of the finer points of Poinsot's theory as well as by providing many other helpful suggestions for revision. 2 The first modern author to point this out was Jacques Maritain, especially in "Signe et symbole," Revue Thomiste 44 (April 1938), pp. 299-300 and 569 570 JAMES BERNARD MURPHY What I wish to explore here is the question: To what extent does the semiotic of John Poinsot account for the meaning of linguistic signs? In one sense, we cannot expect such a fundamental and general theory of the action of signs to tell us much about language. Language is a surpassingly complex and, in many ways, a unique sign-system. Expecting a general theory of signs to capture the meaning of the linguistic sign is like expecting physics to explain reproductive biology. In another sense, though, we ought to expect his semiotic to illuminate that preeminent system of signs, human language. For in addition to "Le Langage et la theorie du signe," Anne.:re au chapitre II of Quatre essais sur!'esprit dans sa condition charnelle (Nouvelle edition revue et augmentee; Paris: Alsatia, 1956), pp. 113-124. This latter essay appears in a modestly amplified English version, " Language and the Theory of Sign," from Language : An Enquiry into Its Meaning and Function, edited by Ruth Nanda Anshen (New York: Harper and Brothers, 1957), pp. 86-101; and, fully annotated in relation to Poinsot's Tractatus de Signis, it has been reprinted in Frontiers in Semiotics, edited by John Deely, Brooke Williams, and Felicia Kruse (Bloomington, IN: Indiana University Press, 1986), pp. 51-62. Following Maritain, a number of authors have attempted to apply Poinsot's semiotic to contemporary debates. I note the principal ones in chronological order: John A. Oesterle, " Another Approach to the Problem of Meaning," The Thomist 7 (1944), pp. 233-263; John Wild, "An Introduction to the Phenomenology of Signs," Philosophy and Phenomenological Research 8 (December 1947), pp. 217-244; Henry B. Veatch, Intentional Logic (New Haven: Yale University Press, 1952). Poinsot's Treatise on Signs was originally published in 1632 as a small part of volume 2 in the original five volumes (Alcala, Spain: 1631-1635) of his philosophical writings. These five volumes have been published as three volumes under the title Cursus Philosophicus Thomisticus in the modern edition by Beatus Reiser (Turin: Marietti, 1930, 1933, 1937). The first independent presentation of Poinsot's complete Tractatus de Signis was prepared by John Deely in consultation with Ralph A. Powell and published in bilingual critical edition (Berkeley: University of California Press, 1985). Since the publication of this edition of the Tractatus, two major critiques and reconstructions of Poinsot's analysis... (shrink)

As with mathematics, logic is easier to do if its symbols and their rules are better. In a graphic way, the logic symbols introduced in thís paper show their truth-table values, their composite truth-functions, and how to say them as either ?or? or ?if ? then? propositions. Simple rules make the converse, add or remove negations, and resolve propositions.

Given a finitely generated group Γ, we study the space Isom(Γ, ℚ������) of all actions of Γ by isometries of the rational Urysohn metric space ℚ������, where Isom(Γ, ℚ������) is equipped with the topology it inherits seen as a closed subset of Isom(ℚ������) Γ . When Γ is the free group ������ n on n generators this space is just Isom(ℚ������) n , but is in general significantly more complicated. We prove that when Γ is finitely generated Abelian there is (...) a generic point in Isom(Γ, ℚ������), i.e., there is a comeagre set of mutually conjugate isometric actions of Γ on ℚ������. (shrink)

This study aims to reveal the impact and response to the apartheid system in shaping the collective trauma of African society through symbolic representations of suffering and social performativity through political action in “Amnesty” short story by Nadine Gordimer. This study used the cultural trauma theory by Jeffrey Alexander with descriptive qualitative method. The results of this research found that social suffering is symbolically represented with a humanist and theocentric images. Even so, the two seemingly different treatments are (...) essentially the same suffering, disguised by social and cultural symbols. Then, as a response to this suffering, there was social performativy through the political actions of social agents carried out by the Labor Union. These actions occur after going through of socio-cultural processes such as gathering, organizing, rioting, speeches, demonstrations, and accommodating or representing pain as well as distributing social awareness to arrive at the point where the apartheid system is the cause of all forms of suffering they experience. (shrink)

In this paper I argue that, to make intentional actions fully intelligible, we need to posit representations of action the content of which is nonconceptual. I further argue that an analysis of the properties of these nonconceptual representations, and of their relation- ships to action representations at higher levels, sheds light on the limits of intentional control. On the one hand, the capacity to form nonconceptual representations of goal-directed movements underscores the capacity to acquire executable concepts of these (...) movements, thus allowing them to come under intentional control. On the other hand, the degree of autonomy these nonconceptual representations enjoy, and the specific temporal constraints stemming from their role in motor control, set limits on intentional control over action execution. (shrink)

This dissertation investigates how art, truth, and politics are tightly integrated in Raphael's historical narratives in the Stanza d'Eliodoro. ;The first chapter argues for the importance of paying careful attention to pictorial structure--that close analysis of painting can make a strong contribution to the social history of art. The second chapter begins this interpretive path. It first describes the room's decorative ensemble as a whole and how the histories are located within its complex figurative scheme. Then, drawing upon Martin Heidegger's (...) analysis of postmedieval processes of Vorstellung, it defines the pictorial narratives themselves as representations and concludes that as pictorial representations these narratives appear unable to ground the truth of sacred history. ;Chapter 3 focuses on the Expulsion of Heliodorus, a mural replete with self-referential models of both its own mode of authorship and mode of reception. These self-referential cues help define what it means for the Heliodorus to be not only a pictorial representation but more extensively a work of art. It is Raphael's art of representation that shows forth and validates the metaphysical truth of papal history. ;The latter part of Chapter 3 and all of Chapter 4 offer readings of the Heliodorus as well as the three other histories--the Liberation of St. Peter, Mass at Bolsena, and Repulse of Attila--construing them as theologico-political narratives of the divinity of papal power. All four histories express at the level of narrative form the dilemma of the papacy's contemporary political trajectory only for this predicament to find imaginative "resolution" through the movement of the narrative action. This chapter expounds upon the configurations of historical time in the decorative scheme and how this projects the political unconscious of papal desire. Yet the fifth and final chapter concludes that the Eliodoro narratives are not simply collective wishfulfillments but more properly public symbols that rhetorically address a beholder so to persuade him to accept as true the papacy's desired self-image of its own historical mission. Raphael's art of representation was essential towards this end. (shrink)

Contemporary knowledge systems have given too much importance to visual symbols, the written word for instance, as the repository of knowledge. The primacy of the written word and the representational world built around it is, however, under debate—especially from recent insights derived from cognitive science that seeks to bring back action, intent and emotion within the core of cognitive science (Freeman and Nunez in J Consciousness Stud 6(11/12), 1999). It is being argued that other sensory experiences, apart from the (...) visual, along with desires (or intent) and emotions—like pain, pleasure, sorrow or joy—constitute equally important building blocks that shape an individual’s cognition of the world around. This multi-sensory cognition colored by emotions inspire action and hence is valid knowledge. This is probably nowhere more apparent than in the world of the visually impaired. Deprived of visual sensory capability, they have to perforce depend on other senses. But the dominant discourse in wider society plays a major role in determining what they (the blind) can do. A society built around visual symbols and the written word underplays other elements of cognition and in the process undervalues them. This also gets reflected in the construction of social artifacts of various kinds, such as the educational certification system (The Braille system is an attempt to make the written world accessible to the blind through tactile signals—so that words are ‘felt’ and ‘read.’ But it is quite cumbersome. For instance, even a blind highly skilled at writing in Braille would not be able to match the writing speed of an ordinary visually endowed literate person. Effective and efficient computer-based voice–text–voice converters might solve this problem better.)-based primarily on skills over the written word. Linguistic ability becomes most valuable and at another level the written word gets salience over the spoken word. The blind hardly has a chance, therefore, except through concessions or piety. A practice built around the imagery of an empowered blind person, therefore, must depart from mainstream conceptualization—for power is derived from what one has rather than from what one lacks. It must begin by tapping and valorizing one’s own endowments. This paper is an attempt to identify such a departure based on the experience of Blind Opera—a theatre group of the blind working in Kolkata, India. It seeks to provide an exposition in written word of an experience that can only be partially captured within the confines of a text. It is an incomplete account, therefore, and may be taken as an attempt to reach out and seek an exchange of experiences and insights. (shrink)

How do people make difficult decisions in situations involving substantial risk and uncertainty? In this study, we presented a difficult medical decision to three expert physicians in a combined “thinking aloud” and “cross examination” experiment. Verbatim transcripts were analyzed using script analysis to observe the process of constructing and making the decision, and using referring phrase analysis to determine the representation of knowledge of likelihoods. These analyses are compared with a formal decision analysis of the same problem to highlight (...) similarities and differences. The process of making the decision resembles an incremental, sequential‐refinement planning algorithm, where a complex decision is broken into a sequence of choices to be made with a simplified description of the alternatives. This strategy results in certain kinds of relevant information being underweighted in the final decision. Knowledge of likelihood appears to be represented as symbolic descriptions capturing categorical and ordinal relations with “landrhark” likelihoods, only some of which are described numerically. Numerical probabilities, capable of being combined and compared arithmetically, were not observed. These observations suggest an explanation for the heuristics and biases in human decision making under uncertainty in terms of the processes that manipulate symbolic descriptions of likelihoods and construct plans of action for situations involving risk and uncertainty. (shrink)

Markman and Dietrich¹ recently recommended extending our understanding of representation to incorporate insights from some “alternative” theories of cognition: perceptual symbol systems, situated action, embodied cognition, and dynamical systems. In particular, they suggest that allowances be made for new types of representation which had been previously under-emphasized in cognitive science. The amendments they recommend are based upon the assumption that the alternative positions each agree with the classical view that cognition requires representations, internal mediating states that bear (...) information.² In the case of one of the alternatives, dynamical systems³, this is simply false: many dynamically-oriented cognitive scientists are anti-representationalists.^4,5,6. (shrink)

This paper presents a general computational treatment of how mammals are able to deal with visual objects and environments. The model tries to cover the entire range from behavior and phenomenological experience to detailed neural encodings in crude but computationally plausible reductive steps. The problems addressed include perceptual constancies, eye movements and the stable visual world, object descriptions, perceptual generalizations, and the representation of extrapersonal space.The entire development is based on an action-oriented notion of perception. The observer is (...) assumed to be continuously sampling the ambient light for information of current value. The central problem of vision is taken to be categorizing and locating objects in the environment. The critical step in this process is the linking of visual information to symbolic object descriptions; this is calledindexing, from the analogy of identifying a book from index terms. The system must also identifysituationsand use this knowledge to guide movement and other actions in the environment. The treatment focuses on the different representations of information used in the visual system.The four representational frames capture information in the following forms: retinotopic, head-based, symbolic, and allocentric. The functional roles of the four frames, the communication among them, and their suggested neurophysiological realization constitute the core of the paper. The model is perforce crude, but appears to be consistent with all relevant findings. (shrink)

Two experiments investigated whether infants represent goal‐directed actions of others in a way that allows them to draw inferences to unobserved states of affairs (such as unseen goal states or occluded obstacles). We measured looking times to assess violation of infants' expectations upon perceiving either a change in the actions of computer‐animated figures or in the context of such actions. The first experiment tested whether infants would attribute a goal to an action that they had not seen completed. The (...) second experiment tested whether infants would infer from an observed action the presence of an occluded object that functions as an obstacle. The looking time patterns of 12‐month‐olds indicated that they were able to make both types of inferences, while 9‐month‐olds failed in both tasks. These results demonstrate that, by the end of the first year of life, infants use the principle of rational action not only for the interpretation and prediction of goal‐directed actions, but also for making productive inferences about unseen aspects of their context. We discuss the underlying mechanisms that may be involved in the developmental change from 9 to 12 months of age in the ability to infer hypothetical (unseen) states of affairs in teleological action representations. (shrink)

Discusses the possibility of reconciling different articulations of intentionality from a neurobiological perspective. The author analyzes the relationship between agency and representation and how representation is intrinsically related to action control. The author also presents a new account of action, arguing against what is still commonly held as its proper definition, namely the final outcome of a cascade-like process that starts from the analysis of sensory data, incorporates the result of decision processes, and ends up with (...) responses (actions) to externally-or internally-generated stimuli. The author discusses recent findings from the investigation of neural mechanisms that are at the basis of sensorimotor integration. (shrink)

Routine action sequences critically rely on neural mechanisms maintaining contextual and temporal information to disambiguate similar tasks (e.g. making coffee or tea). In this study we show the involvement of areas in temporal and lateral prefrontal cortices in maintaining temporal and contextual information for the execution of hierarchically‐organized action sequences.

In lieu of an abstract, here is a brief excerpt of the content:Reviewed by:Ad Infinitum: The Ghost in Turing’s Machine: Taking God Out of Mathematics and Putting the Body Back InTony E. JacksonAd Infinitum: The Ghost in Turing’s Machine: Taking God Out of Mathematics and Putting the Body Back In, by Brian Rotman; xii & 203 pp. Stanford: Stanford University Press, 1993, $39.50 cloth, $12.95 paper.Brian Rotman’s book attempts to pull mathematics—the last, most solid home of metaphysical thought—off its absolutist (...) foundations and into the roiling current of postmodernism. His argument works in what has by now become a rather standard manner. He shows how the grounding ideas of mathematics rest upon the insupportable assumption of a realm of absolute truth, “truth perfect, truth outside time, outside space, outside the material world of matter, energy, and entropy, truth somehow able to be discovered or apprehended but never invented” (p. 19). Rotman questions this Platonic grounding in a number of ways.First, with the help of linguistics (de Saussure, Benveniste, Wittgenstein, and Peirce) he provides a semiotic analysis of mathematical arguments as real-world linguistic events. Proof he looks at “not as a form of inference engaged in preserving eternal truths, but as an historically conditioned species of rhetoric” (p. 35). Secondly, Rotman argues that one idea has most secured the fortress-like solidity of mathematical Platonism: the idea of ad infinitum or infinite iteration. Mathematics takes off from the givenness of the natural numbers, our everyday 1, 2, 3 and so on to infinity. It is the “so on to infinity” that frames up the house of arithmetic as it has stood since Euclid. (Euclidean in this context is equivalent to Platonic in the context of philosophy.) But what is the referent of these numbers? Ultimately they are said to be the symbolic representation of the action of counting, which is the “mathematical ur-cognition” (p. 51). And yet we cannot imagine any material human situation in which counting could actually go on to infinity. Therefore, some impossible, supernatural agent (the ghost of the title) must be projected in order for this conception to exist. Similarly, Rotman argues against the assumption of “perfect repeatability” because this notion depends upon some purely imaginary, ideal identity of object or action that could possibly be repeated. Ad infinitum requires and assumes both a disembodied, metaphysical counter and a disembodied, metaphysical counted.So Rotman sets about putting the body back into this symbolic system by rejecting the idea of ad infinitum. Instead of assuming the existence of counting activities that run, in principle, out to infinity without changing their nature, Rotman posits what he calls “realizable iteration,” that is, counting that admits the necessary dissolution or change of whatever repetitive function you begin with. Put simply, he includes the fact that quantitative accumulation or repetition always eventually brings about a qualitative change: at some point in everyday life a difference of degree of the “same” thing or action inevitably becomes a difference of kind. The natural numbers and the ad infinitum [End Page 390] remain blissfully sheltered from this inescapable real world truth, but Rotman reformulates mathematics so as to include this truth in the very idea of numbering.In fact (and he acknowledges this) he theorizes counting after the model of chaos or complexity theory in the physical sciences. Realizable iteration, he says, will bring in the “qualitative differences” forgotten or repressed (the language of Nietzsche, Heidegger, and Freud runs throughout) in the metaphysical version of number, and “display [the qualitative differences] as the emergent effects of repetition” (p. 131). Even numerical addition, for instance, which had been the most linearly continuous of activities, now will be linear beginning from some initial point, but will become increasingly nonlinear as quantitative increase tends towards some point of qualitative discontinuity with what had come before. The point of discontinuity, though certain to appear, is by its nature not specifiable beyond a horizon of probability, and in this, Rotman aligns his arithmetic not only with chaos theory, but also with quantum mechanics. In an appendix, Rotman elaborates at least to a degree the “pre-elements” of his non-Euclidean arithmetic.As chaos theory does not destroy everyday cause... (shrink)

This book on the topic of ethics and poetry consists of contributions from different continents on the subject of applied ethics related to poetry. It should gather a favourable reception from philosophers, ethicists, theologians and anthropologists from Africa, Asia, Europe and Latin America and allows for a comparison of the healing power of words from various religious, spiritual and philosophical traditions. The first part of this book presents original poems that express ethical emotions and aphorism related to a philosophical questioning (...) of the grounding of our values for life. The poems are written by twelve authors coming from four continents, for whom poetic emotions are sources of artistic inspiration and that can be used for conflict resolution. In the second part, which features short essays, nine authors tackle how poems, symbolic representations, metaphorical narratives and lies impact the space of possibilities, in which we are moved to action, knowledge formation, and how we imagine the world together. (shrink)

Two experiments investigated whether infants represent goal‐directed actions of others in a way that allows them to draw inferences to unobserved states of affairs (such as unseen goal states or occluded obstacles). We measured looking times to assess violation of infants' expectations upon perceiving either a change in the actions of computer‐animated figures or in the context of such actions. The first experiment tested whether infants would attribute a goal to an action that they had not seen completed. The (...) second experiment tested whether infants would infer from an observed action the presence of an occluded object that functions as an obstacle. The looking time patterns of 12‐month‐olds indicated that they were able to make both types of inferences, while 9‐month‐olds failed in both tasks. These results demonstrate that, by the end of the first year of life, infants use the principle of rational action not only for the interpretation and prediction of goal‐directed actions, but also for making productive inferences about unseen aspects of their context. We discuss the underlying mechanisms that may be involved in the developmental change from 9 to 12 months of age in the ability to infer hypothetical (unseen) states of affairs in teleological action representations. (shrink)

Learning in intelligent systems is a result of direct or indirect interaction with the environment. Humans can learn by way of different states of (inter-)action such as the execution or the imagery of an action, but their unique potential to induce brain-related as well as mind-related changes in the motor action system is still being debated. The systematic repetition of different states of action (e.g., execution and imagery in terms of physical and mental practice) and their (...) contribution to the learning of complex motor actions has traditionally been approached by way of performance improvements. More recently, approaches highlighting the role of action representation in the learning of complex motor actions have evolved. In the present perspective paper, we build on brain-related findings and sketch recent research on learning by way of imagery and execution from a hierarchical, perceptual-cognitive approach to the motor action system. These findings provide valuable insights into the learning of intelligent systems from a perceptual-cognitive, representation-based perspective and as such add to our current understanding of action representation in memory and its changes with practice. Future research should build bridges between approaches in order to more thoroughly understand functional changes throughout the learning process, and to jointly contribute to developing intelligent cognitive systems and their application in robotics, rehabilitation, or sports. (shrink)

Various theories of moral cognition posit that moral intuitions can be understood as the output of a computational process performed over structured mental representations of human action. We propose that action plan diagrams—“act trees”—can be a useful tool for theorists to succinctly and clearly present their hypotheses about the information contained in these representations. We then develop a methodology for using a series of linguistic probes to test the theories embodied in the act trees. In Study 1, we (...) validate the method by testing a specific hypothesis (diagrammed by act trees) about how subjects are representing two classic moral dilemmas and finding that the data support the hypothesis. In Studies 2–4, we explore possible explanations for discrete and surprising findings that our hypothesis did not predict. In Study 5, we apply the method to a less well‐studied case and show how new experiments generated by our method can be used to settle debates about how actions are mentally represented. In Study 6, we argue that our method captures the mental representation of human action better than an alternative approach. A brief conclusion suggests that act trees can be profitably used in various fields interested in complex representations of human action, including law, philosophy, psychology, linguistics, neuroscience, computer science, robotics, and artificial intelligence. (shrink)

The present study evaluates the cognitive representation of a kicking movement performed by a human and a humanoid robot, and how they are represented in experts and novices of soccer and robotics, respectively. To learn about the expertise-dependent development of memory structures, we compared the representation structures of soccer experts and robot experts concerning a human and humanoid robot kicking movement. We found different cognitive representation structures for both expertise groups under two different motor performance conditions . (...) In general, the expertise relies on the perceptual-motor knowledge of the human motor system. Thus, the soccer experts’ cognitive representation of the humanoid robot movement is dominated by their representation of the corresponding human movement. Additionally, our results suggest that robot experts, in contrast to soccer experts, access functional features of the technical system of the humanoid robot in addition to their perceptual-motor knowledge about the human motor system. Thus, their perceptual-motor and neuro-functional machine representation are integrated into a cognitive representation of the humanoid robot movement. (shrink)