The present essay aims at integrating different concepts of meaning developed in semiotics, biology, and cognitive science, in a way that permits the formulation of issues involving evolution and development. The concept of sign in semiotics, just like the notion of representation in cognitive science, have either been used too broadly, or outright rejected. My earlier work on the notions of iconicity and pictoriality has forced me to spell out the taken-forgranted meaning of the sign concept, both in the Saussurean (...) and the Peircean tradition. My work with the evolution and development of semiotic resources such as language, gesture, and pictures has proved the need of having recourse to a more specified concept of sign. To define the sign, I take as point of departure the notion of semiotic function (by Piaget), and the notion of appresentation (by Husserl). In the first part of this essay, I compare cognitive science and semiotics, in particular as far as the parallel concepts of representation and sign are concerned. The second part is concerned with what is probably the most important attempt to integrate cognitive science and semiotics that has been presented so far, The Symbolic Species, by Terrence Deacon. I criticize Deacon’s use of notions such as iconicity, indexicality, and symbolicity. I choose to separate the sign concept from the notions of iconicity, indexicality, and symbolicity, which only in combination with the sign give rise to icons, indices, and symbols, but which, beyond that, have other, more elemental, uses in the world of perception. In the third part, I discuss some ideas about meaning in biosemiotics, which I show not to involve signs in the sense characterised earlier in the essay. Instead, they use meaning in the general sense of selection and organisation, which is a more elementary sense of meaning. Although I admit that there is a possible interpretation of Peirce, which could be taken to correspond to Uexküll’s idea of functional circle, and to meaning as function described by Emmeche and Hoffmeyer, I claim thatthis is a different sense of meaning than the one embodied in the sign concept. Finally, I suggest that more thresholds of meaning than proposed, for instanceby Kull, are necessary to accommodate the differences between meaning (in the broad sense) and sign (as specified in the Piaget–Husserl tradition). (shrink)

This is the first of two papers in which we propose an evolutionary route for the transition from sensory processing to unlimited experiencing, or basic consciousness. We argue that although an evolutionary analysis does not provide a formal definition and set of sufficient conditions for consciousness, it can identify crucial factors and suggest what evolutionary changes enabled the transition. We believe that the raw material from which feelings were molded by natural selection was a global sensory state that we call (...) overall sensation, which is a by-product of the incessant activity of the highly interconnected nervous systems that characterize all neural animals. We argue that global sensory states generated limited experiencing once they became coupled to the simplest kinds of nervous-system-mediated learning, a coupling that occurred in the most ancient taxa of neural animals, which were similar to present-day cnidarians and ctenophores. In such animals, limited experiencing involves a small number of persistent global sensory states. These sensory states, however, do not have a function and do not act as motivational states. As we argue in the next paper, with the evolution of associative learning they evolved into systems that gave animals basic consciousness. (shrink)

We discuss the evolutionary transition from animals with limited experiencing to animals with unlimited experiencing and basic consciousness. This transition was, we suggest, intimately linked with the evolution of associative learning and with flexible reward systems based on, and modifiable by, learning. During associative learning, new pathways relating stimuli and effects are formed within a highly integrated and continuously active nervous system. We argue that the memory traces left by such new stimulus-effect relations form dynamic, flexible, and varied global sensory (...) states, which we call categorizing sensory states . These CSSs acquired a function: they came to act as internal “evaluators” and led to positive and negative reinforcement of new behavior. They are therefore the simplest, distinct, first-person motivational states that an animal can have. They constitute what we call basic consciousness, and are the hallmark of animals that can experience. Since associative learning has been found in many invertebrate taxa that first appeared during the Cambrian era, we propose that the processes underlying basic consciousness are phylogenetically ancient, and that their emergence may have fueled the Cambrian explosion. (shrink)

The mind-body problem concerns the relationship between mind and body, or nowadays - between mind or consciousness and the brain. As a relationship, this can be viewed from two perspectives: from body to mind and from mind to body. In this note I point out that the two readings of the problem are not symmetrical and that there are categorical differences between them. In particular, whereas the body to mind problem constitutes a mystery (cf. the contemporary hard problem), the mind (...) to body problem may be approached from a psychological (as contrasted with philosophical) orientation that allows for concrete phenomenological investigation. (shrink)

This commentary considers Merker's mesodiencephalic proposal in relation to quantitative measures of neural dynamics suggested to be relevant to consciousness. I suggest that even if critical neural mechanisms turn out to be subcortical, the functional utility of consciousness will depend on the rich conscious contents generated by continuous interaction of such mechanisms with a thalamocortical envelope. (Published Online May 1 2007).

Neural Darwinism (ND) is a large scale selectionist theory of brain development and function that has been hypothesized to relate to consciousness. According to ND, consciousness is entailed by reentrant interactions among neuronal populations in the thalamocortical system (the ‘dynamic core’). These interactions, which permit high-order discriminations among possible core states, confer selective advantages on organisms possessing them by linking current perceptual events to a past history of value-dependent learning. Here, we assess the consistency of ND with 16 widely recognized (...) properties of consciousness, both physiological (for example, consciousness is associated with widespread, relatively fast, low amplitude interactions in the thalamocortical system), and phenomenal (for example, consciousness involves the existence of a private flow of events available only to the experiencing subject). While no theory accounts fully for all of these properties at present, we find that ND and its recent extensions fare well. (shrink)

Many philosophers hold that phenomenally conscious experiences involve a sense of mineness, since experiences like pain or hunger are immediately presented as mine. What can be said about this mineness, and does acceptance of this feature commit us to the existence of a subject or self? If yes, how should we characterize this subject? This paper considers the possibility that, to the extent that we accept this feature, it provides us with a minimal notion of a subject of experience, and (...) that the phenomenological subject of experience, as it is represented in conscious experience, is the organism. While many philosophers agree that the metaphysical subject of experience is the animal, this claim is much less widespread, maybe even counterintuitive. The argument for this claim alludes to the structure of phenomenal consciousness and to recent work in cognitive science concerning the embodied character of consciousness and cognition. To illustrate the problems of current controversies, not only several recent rejections of a subject of experience are critically discussed, but also Hume’s famous rejection of a subject is criticized making use of epistemological aspects from Kant’s philosophy of mind. The final section situates the present discussion in the context of recently popular predictive coding accounts of perception and perceptual experience. (shrink)

Alexei V. Samsonovich, Int. J. Mach. Conscious., 06, 49 (2014). DOI: 10.1142/S1793843014400083.

Los diversos estudios que circundan en la literatura de la filosofía de la mente nos acercan a la comprensión de la conciencia desde estudios fisicalistas, naturalistas, y eliminativistas, los cuales, en su mayoría, terminan por sucumbir en el problema del dualismo. La teoría del emergentismo searleano realiza su aporte sobre la comprensión de la naturaleza de la conciencia desde la contribución de las neurociencias, sin caer en reduccionismos y presenta una alternativa de superación del dualismo. Pese a ello, al analizar (...) la teoría naturalista de Searle se evidencia que esta resulta ser insuficiente para comprender la naturaleza del fenómeno mental, además de caer en un nuevo dualismo: naturaleza/sociedad. Razón por la cual, en este escrito se realizará un análisis de la teoría searleana de la conciencia, con el fin de proponer al lenguaje como elemento constitutivo de la naturaleza de este estado mental y no como producto derivado de la mente. Es decir, se propone una concepción biopragmática de la conciencia; estudio en el que se sustenta que biología y pragmática del lenguaje son condiciones sine qua non para la existencia de niveles superiores de la conciencia y superar el dualismo natural/social. (shrink)

The present paper proposes a definition for the complex polysemic concepts of consciousness and awareness (in humans as well as in other species), and puts forward the idea of a progressive ontological development of consciousness from a state of ‘childhood’ awareness, in order to explain that humans are not only able to manipulate objects, but also their mental representations. The paper builds on the idea of qualia intended as entities posing regular invariant requests to neural processes, trough the permanence of (...) different properties. The concept of semantic differential introduces the properties of metaphorical qualia as an exclusively human ability. Furthermore this paper proposes a classification of qualia, according to the models–with different levels of abstraction–they are implied in, in a taxonomic perspective. This, in turn, becomes a source of categorization of divergent representations, sign systems, and forms of intentionality, relying always on biological criteria. New emerging image-of-the-world-devices are proposed, whose qualia are likely to be only accessible to humans: emotional qualia, where emotion accounts for the invariant and dominant property; and the qualic self where continuity, combined with the oneness of the self, accounts for the invariant and dominant property. The concept of congruence between different domains in a metaphor introduces the possibility of a general evaluation of truth and falsity of all kinds of metaphorical constructs, while the work of Matte Blanco enables us to classify conscious versus unconscious metaphors, both in individuals and in social organizations. (shrink)

The goal of forming a science of intentional behavior requires a more richly detailed account of symbolic systems than is assumed by the authors. Cultural systems are not simply the equivalent in the ideational domain of culture of the purported Baldwin Effect in the genetic domain. © 2014 Cambridge University Press.

The Sphere Model of Consciousness (SMC) delineates a sphere-shaped matrix that aims to describe the phenomenology of experience using geometric coordinates. According to SMC, an experience of overcoming of the habitual self and the conditioning of memories could be placed at the center of the matrix, which can be then called the Place of Pre-Existence (PPE). The PPE is causally associated with self-determination. In this context, we suggest that silence could be considered as an intentional state enabling self-perception to be (...) focused on the “here and now,” which in turn improves perception of one’s own body in space. To investigate these hypotheses grounded in the model, the current preliminary study examined the Place of Pre-Existence Technique (PPEt), in which practitioners are guided to focus on a self-defined aim; reach a state of detachment from the habitual self; envision the future. 481 volunteers PPEt practitioners completed self-report questionnaires before and after an intensive 3-day meditative training. We analyzed the possibly relationship between subjective experiences related to physical, emotional, mental, temporal, and spatial aspects, as well as self-determination and silence, before and after training. The results indicated a shift from a prevailing influence of mental dimension on the other aspects of experience, to a prevailing influence of spatial dimension. Silence was reported more often following the training, and predominantly related to the mental and emotional experiences. The results are discussed in relation to the shift from Narrative to Minimal Self and to increased balance among the considered dimensions. (shrink)

This article explores the limits of social constructionism and criticizes the `demiurgic conception of society' associated with it. It contemplates the possibility of sociological realism by investigating the intrinsic and objective properties of action, cognition and morality. The incorporation of intrinsic meanings and intentions in social actions, the objective information supporting cognitive processes and human sensitivity to pleasure and pain as well as the normative rejection of undue suffering, delineate the objective core of social facts, which can be interpreted or (...) influenced, but not arbitrarily or capriciously constructed or manipulated. This general argument is supported by various illustrations drawn from the semantics of social actions and classical puzzles of interpretative sociology such as the meaning of suicide or the morality of social sanctions. (shrink)

The Nagel inspired “something-it-is-like” conception of conscious experience remains a dominant approach in philosophy. In this paper I criticize a prevalent philosophical construal of SIL consciousness, one that understands SIL as a property of mental states rather than entities as a whole. I argue against thinking of SIL as a property of states, showing how such a view is in fact prevalent, under-warranted, and philosophically pernicious in that it often leads to an implausible reduction of conscious experience to qualia. I (...) then develop a holistic conception of SIL for entities and argue that it has at least equal pre-empirical warrant, is more conservative philosophically in that it decides less from the a priori “armchair,” and enjoys a fruitful two-way relationship with empirical work. (shrink)

The Nagel inspired “something-it-is-like” conception of conscious experience remains a dominant approach in philosophy. In this paper I criticize a prevalent philosophical construal of SIL consciousness, one that understands SIL as a property of mental states rather than entities as a whole. I argue against thinking of SIL as a property of states, showing how such a view is in fact prevalent, under-warranted, and philosophically pernicious in that it often leads to an implausible reduction of conscious experience to qualia. I (...) then develop a holistic conception of SIL for entities and argue that it has at least equal pre-empirical warrant, is more conservative philosophically in that it decides less from the a priori “armchair,” and enjoys a fruitful two-way relationship with empirical work. (shrink)

Many current neurophysiological, psychophysical, and psychological approaches to vision rest on the idea that when we see, the brain produces an internal representation of the world. The activation of this internal representation is assumed to give rise to the experience of seeing. The problem with this kind of approach is that it leaves unexplained how the existence of such a detailed internal representation might produce visual consciousness. An alternative proposal is made here. We propose that seeing is a way of (...) acting. It is a particular way of exploring the environment. Activity in internal representations does not generate the experience of seeing. The out- side world serves as its own, external, representation. The experience of seeing occurs when the organism masters what we call the gov- erning laws of sensorimotor contingency. The advantage of this approach is that it provides a natural and principled way of accounting for visual consciousness, and for the differences in the perceived quality of sensory experience in the different sensory modalities. Sev- eral lines of empirical evidence are brought forward in support of the theory, in particular: evidence from experiments in sensorimotor adaptation, visual “filling in,” visual stability despite eye movements, change blindness, sensory substitution, and color perception. (shrink)

(2014). Emergence, Story, and the Challenge of Positive Scenarios. World Futures: Vol. 70, Strategy, Story, and Emergence: Essays on Scenario Planning, pp. 52-87.

Though the brain and its neuronal states have been investigated extensively, the neural correlates of mental states remain to be determined. Since mental states are experienced in first-person perspective and neuronal states are observed in third-person perspective, a special method must be developed for linking both states and their respective perspectives. We suggest that such method is provided by First-Person Neuroscience. What is First-Person Neuroscience? We define First-Person Neuroscience as investigation of neuronal states under guidance of and on orientation to (...) mental states. An empirical example of such methodological approach is demonstrated by an fMRI study on emotions. It is shown that third- and first-person analysis of data yield different results. First-person analysis reveals neural activity in cortical midline structures during subjective emotional experience. Based on these and other results neural processing in cortical midline structures is hypothesized to be crucially involved in generating mental states. Such direct linkage between first- and third-person approaches to analysis of neural data allows insight into the "point of view from within the brain", that is what we call the First-Brain Perspective. In conclusion, First-Person Neuroscience and First-Brain Perspective provide valuable methodological tools for revealing the neuronal correlate of mental states. (shrink)

The James–Lange theory considers emotional feelings as perceptions of physiological body changes. This approach has recently resurfaced and modified in both neuroscientific and philosophical concepts of embodiment of emotional feelings. In addition to the body, the role of the environment in emotional feeling needs to be considered. I here claim that the environment has not merely an indirect and thus instrumental role on emotional feelings via the body and its sensorimotor and vegetative functions. Instead, the environment may have a direct (...) and non-instrumental, i.e., constitutional role in emotional feelings; this implies that the environment itself in the gestalt of the person–environment relation is constitutive of emotional feeling rather than the bodily representation of the environment. Since the person–environment relation is crucial in this approach, I call it the relational concept of emotional feeling. After introducing the relational concept of emotional feeling, the present paper investigates the neurophilosophical question whether current neuroimaging data on human emotion processing and anatomical connectivity are empirically better compatible with the “relational” or the “embodied” concept of emotional feeling. These data lend support to the empirical assumption that neural activity in subcortical and cortical midline regions code the relationship between intero- and exteroceptive stimuli in a relational mode, i.e. their actual balance, rather than in a translational mode, i.e., by translating extero- into interoceptive stimulus changes. Such intero-exteroceptive relational mode of neural coding may have implications for the characterization of emotional feeling with regard to phenomenal consciousness and intentionality. I therefore conclude that the here advanced relational concept of emotional feeling may be considered neurophilosophically more plausible and better compatible with current neuroscientific data than the embodied concept as presupposed in the James–Lange theory and its modern neuroscientific and philosophical versions. (shrink)

In this article we critically review the neural mechanisms of moral cognition that have recently been studied via electroencephalography (EEG). Such studies promise to shed new light on traditional moral questions by helping us to understand how effective moral cognition is embodied in the brain. It has been argued that conflicting normative ethical theories require different cognitive features and can, accordingly, in a broadly conceived naturalistic attempt, be associated with different brain processes that are rooted in different brain networks and (...) regions. This potentially morally relevant brain activity has been empirically investigated through EEG-based studies on moral cognition. From neuroscientific evidence gathered in these studies, a variety of normative conclusions have been drawn and bioethical applications have been suggested. We discuss methodological and theoretical merits and demerits of the attempt to use EEG techniques in a morally significant way, point to legal challenges and policy implications, indicate the potential to reveal biomarkers of psychopathological conditions, and consider issues that might inform future bioethical work. (shrink)

This essay discusses the origins, biases, and effects on contemporary discussions of economics and ethics of the unexamined use of the metaphor an economy is a machine. Both neoliberal economics and many critiques of capitalist systems take this metaphor as their starting point. The belief that economies run according to universal laws of motion, however, is shown to be based on a variety of rationalist thinking that – while widely held – is inadequate for explaining lived human experience. Feminist scholarship (...) in the philosophy of science and economics has brought to light some of the biases that have supported the mechanistic worldview. Possible alternatives to the an economy is a machine include an economy is a creative process and an economy is an organism. Such metaphors are intellectually defensible as guides to scientific inquiry and provide a richer ground for moral imagination. (shrink)

ABSTRACT The view that science is typically a cumulative, progressive process, as suggested by some historians of science and some scientific realists, is undermined both by history and by evolutionary considerations about the nature of science. The attempts to use evolutionary biology to portray scientific development as continuous are based on unfortunate analogies to the evolu tion of life. A proper application of evolutionary biology, in combination with neuroscience, defeats the case for the realism in question and leads to the (...) realization that science is not only open to radical transformation, as history indicates, but that it should be so. Non-evolutionary approaches for the historical continuity of science, such as Lakatos', do not fare much better. As I will argue, science is a radical form of knowledge. (shrink)

¿Cómo se nos presenta, fenomenológicamente la realidad humana? Es la que vemos diariamente en nuestra vida personal y social. Estamos hechos de materia, formamos parte del universo evolutivo. Además, está formada en nosotros una vida psíquica: la sensación, un sistema de percepciones, una conciencia integrada, una condición de sujeto psicológico; producimos conocimiento, emociones, motivaciones; pero, sobre todo, tenemos una mente que discurre racionalmente y nos instala en un mundo de emociones humanas; esta razón emocional está en la base de la (...) búsqueda de la verdad del universo, del sentido de la vida y de la responsabilidad moral, en la vida personal y social. Nuestra realidad humana es, pues, una realidad personal. Somos personas. Ahora bien, ¿cómo explica hoy la ciencia, la neurología, el hecho de que nuestra realidad humana posea estas propiedades que nos hacen personas? Esto debería poder explicarse desde el mundo físico-biológico. Ahora bien, en concreto, ¿cómo la ciencia hace posible explicar que la evolución nos haya producido a nosotros en nuestra condición de personas? Es decir, ¿cuál es el soporte físico que hace inteligible la ontología psico-bio-física que produce evolutivamente nuestra experiencia personal fenomenológica? Esta es, en último término, todavía hoy la cuestión fundamental de las ciencias humanas. Lo que la ciencia, a saber, la neurología, debe explicar es obvio: el hecho de que haya emergido la sensibilidad-conciencia, nuestra condición de sujetos psíquicos, el conocimiento y la razón emocional; de tal manera que, una vez emergida la razón emocional, lleve por sí misma a constituir la actividad racional y las emociones propias de la persona humana encaminada a construir el sentido de su vida. Estas son las cuestiones que abordamos en este artículo. (shrink)

One of the most fascinating topics of research within human sciences is the “Body-Mind Problem.” Since its beginning psychological research has focused on the notions of mind and consciousness adopting a purely naturalist perspective, which tends to explain them in terms of causal relationships and to reduce their intrinsic complexity. Conversely, the analysis of the discursive practices through which mind and consciousness reveal themselves through communication suggest the adoption of a psycho-semiotic approach, thus enhancing a “culturalist epistemology.” The aim of (...) the present article is to explore and to discuss the implications of such a theoretical and methodological option. (shrink)

(2005). On Bringing Consciousness into the House of Science – with the Help of Husserlian Phenomenology. Angelaki: Vol. 10, continental philosophy and the sciences the german traditionissue editor: damian veal, pp. 145-162.

A constantly changing social reality means economic theories, even if correct today, need to be constantly revised, updated, or abandoned. To maintain an up-to-date understanding of its subject matter, economists have to continuously assess their theories even those that appear to be empirically corroborated. Economics could gain from a method that describes and is capable of generating novel explanatory hypotheses. A pessimistic view on the existence of such a method was famously articulated by Karl Popper in The Logic of Scientific (...) Discovery. He wrote ‘there is no such a thing as a logical method of having ideas or a logical reconstruction of this process.’ Herbert Simon responded to Popper and argued the opposite, namely, that there is a model of discovery and its name is abduction. Simon acknowledges his debt to Charles Peirce – the first modern logician to explicitly formulate a theory of abduction – and explains that abduction is a model of discovery that works as a problem-solving heuristic encoded.. (shrink)

The “DNA is a program” metaphor is still widely used in Molecular Biology and its popularization. There are good historical reasons for the use of such a metaphor or theoretical model. Yet we argue that both the metaphor and the model are essentially inadequate also from the point of view of Physics and Computer Science. Relevant work has already been done, in Biology, criticizing the programming paradigm. We will refer to empirical evidence and theoretical writings in Biology, although our arguments (...) will be mostly based on a comparison with the use of differential methods (in Molecular Biology: a mutation or alike is observed or induced and its phenotypic consequences are observed) as applied in Computer Science and in Physics, where this fundamental tool for empirical investigation originated and acquired a well-justified status. In particular, as we will argue, the programming paradigm is not theoretically sound as a causal(as in Physics) or deductive(as in Programming) framework for relating the genome to the phenotype, in contrast to the physicalist and computational grounds that this paradigm claims to propose. (shrink)

The dependence on history of both present and future dynamics of life is a common intuition in biology and in humanities. Historicity will be understood in terms of changes of the space of possibilities as well as by the role of diversity in life’s structural stability and of rare events in history formation. We hint to a rigorous analysis of “path dependence” in terms of invariants and invariance preserving transformations, as it may be found also in physics, while departing from (...) the physico-mathematical analyses. The idea is that the invariant traces of the past under organismal or ecosystemic transformations contribute to the understanding of present and future states of affairs. This yields a peculiar form of unpredictability in biology, at the core of novelty formation: the changes of observables and pertinent parameters may depend also on past events. In particular, in relation to the properties of synchronic measurement in physics, the relevance of diachronic measurement in biology is highlighted. This analysis may a fortiori apply to cognitive and historical human dynamics, while allowing to investigate some general properties of historicity in biology. (shrink)

This paper focuses on the emergent neo-Jamesian perspective concerning the phenomenology of art and aesthetic experience. Starting from the distinction between nucleus and fringe in the stream of thought described by William James, it can be argued that our appreciation of a work of art is guided by a vague and blurred perception of a much more powerful content, of which we are not fully aware. Accordingly, a work of art is seen as a kind of metaphor of our mental (...) life, objectified to be able to reach out to a much larger audience. However, it is a “realistic” theory rooted in evolutionary psychology, which claims that our mind developed within a framework shaped by environmental pressures. The aesthetics illustrated by several novelists develops a paradigm for this theory. The search for the neuronal correlates of stream of consciousness allows to make a comparison with the recent findings of neuroaesthetics and to reject its claim that it is unnecessary to take phenomenology and psychology into account. (shrink)

In this paper, we describe four broad ‘meta-methods’ employed in scientific and philosophical research of qualia. These are the theory-centred metamethod, the property-centred meta-method, the argument-centred meta-method, and the event-centred meta-method. Broadly speaking, the theory-centred meta-method is interested in the role of qualia as some theoretical entities picked out by our folk psychological theories; the property-centred meta-method is interested in some metaphysical properties of qualia that we immediately observe through introspection ; the argument-centred meta-method is interested in the role of (...) qualia in some arguments for non-physicalism; the event-centred metamethod is interested in the role of qualia as some natural events whose nature is hidden and must be uncovered empirically. We will argue that the event-centred metamethod is the most promising route to a comprehensive scientific conception of qualia because of the flexibility of ontological and methodological assumptions it can provide. We also reveal the hidden influences of the different meta-methods and in doing so show why consideration of meta-methods has value for the study of consciousness. (shrink)

Substitute decision-makers for severely disabled neonates who can be kept alive but who will require constant medical interventions and will die at the latest in their teens are faced with a difficult decision when trying to decide whether to keep the infant alive. By and large, the primary focus of their decision-making centers on what is in the best interests of the newborn. The best-interests criterion, in turn, is importantly conditioned by quality-of-life considerations. However, the concept of quality of life (...) is logically and ethically different for patients with a developing as opposed to a developed awareness. Unfortunately, this difference is ignored by current quality-of-life considerations, there are no quality-of-life measures that take this difference into account, and decision-making proceeds entirely without acknowledging this fact. This note outlines why this is a problem and why there is a need for a new set of tools that incorporates this distinction if the substitute decision-makers are to apply the best-interest criterion in a meaningful way. (shrink)

I argue that the feeling that one is the owner of his or her mental states is not an intrinsic property of those states. Rather, it consists in a contingent relation between consciousness and its intentional objects. As such, there are (a variety of) circumstances, varying in their interpretive clarity, in which this relation can come undone. When this happens, the content of consciousness still is apprehended, but the feeling that the content “belongs to me” no longer is secured. I (...) discuss the implications of a mechanism enabling personal ownership for understanding a variety of clinical syndromes as well normal mental function. (shrink)

I examine critically the application of information‐theoretic ideas to biological communication during embryonic development and in the functioning central nervous system (CNS). I show that intercellular communication relies mostly on simple signals whose role is to effect a selection among predetermined cellular states. Hence, a crucial role is played by cellular memory, which stabilizes such states. Memory in cells is partly located in the nuclear DNA; no less important however is (phenotypic) memory lying in the cell's organelles and compartments. Because (...) of combinatorial effects in gene expression patterns, cell memory is an enormously powerful mechanism, which also underlies plasticity, and thus constitutes the factor unifying genetic determination, plasticity and learning. Communication in the CNS is analyzed in some detail: here, cellular memory is embodied in anatomy (i.e., cell shape) and neurochemistry. These are the major, relatively “static” factors affecting the routing of neural impulses in the adult CNS. In addition, however, faster channeling is also required: action potentials must be directed to their targets along a few of exponentially many paths, and this dynamic routing is crucial for proper operation. I suggest that collective oscillatory modes may play a role in solving this addressing problem, in the same way that the clock signal gates the operation of man‐made computers. BioEssays 25:699–708, 2003. © 2003 Wiley Periodicals, Inc. (shrink)

This article examines the imagination by way of various studies in cognitive science. It opens by examining the neural correlates of bodily metaphors. It assumes a basic knowledge of metaphor studies, or the primary finding that has emerged from this field: that large swathes of human conceptualization are structured by bodily relations. I examine the neural correlates of metaphor, concentrating on the relation between the sensory motor cortices and linguistic conceptualization. This discussion, however, leaves many questions unanswered. If it is (...) the case that the sensory motor cortices are appropriated in language acquisition, how does this process occur at the neural level? What neural preconditions exist such that this appropriation is possible? It is with these questions in mind that I will turn my attention to studies of neural plasticity, degeneracy and the mirror neuron activation. Whereas some scholarship in philosophy and cognitive neuroscience has aimed to identify the neurological correlates of consciousness, examining plasticity, degeneracy and activation shifts the discussion away from a study of correlates toward an exploration of the neurological dynamics of thought. This shift seems appropriate if we are to examine the processes of the “imagination.”. (shrink)