Consciousness occurs when one is in a state of awareness of one’s self and the external environment. Quantum consciousness is computed within the cytoskeleton of the cells; basic units of life which comprise of unicellular and multicellular animal life. Consciousness has always been linked to the nervous system but there are several studies that have recorded conscious behaviors in animals with and without nerve cells. Animal behavior is represented as conscious moment, which occurs due to an (...) event, which may be intentional or unintentional. The existence of consciousness in animals can be based on the exhibited behaviors and its comparison to multifaceted conscious behaviors observed in higher beings; which is driven by protein conformational changes within the cytoskeleton network of cells, performed within the domains of space time geometry. (shrink)

In today’s society, it becomes increasingly important to assess which non-human and non-verbal beings possess consciousness. This review article aims to delineate criteria for consciousness especially in animals, while also taking into account intelligent artifacts. First, we circumscribe what we mean with “consciousness” and describe key features of subjective experience: qualitative richness, situatedness, intentionality and interpretation, integration and the combination of dynamic and stabilizing properties. We argue that consciousness has a biological function, which is to (...) present the subject with a multimodal, situational survey of the surrounding world and body, subserving complex decision-making and goal-directed behavior. This survey reflects the brain’s capacity for internal modeling of external events underlying changes in sensory state. Next, we follow an inside-out approach: how can the features of conscious experience, correlating to mechanisms inside the brain, be logically coupled to externally observable properties? Instead of proposing criteria that would each define a “hard” threshold for consciousness, we outline six indicators: goal-directed behavior and model-based learning; anatomic and physiological substrates for generating integrative multimodal representations; psychometrics and meta-cognition; episodic memory; susceptibility to illusions and multistable perception; and specific visuospatial behaviors. Rather than emphasizing a particular indicator as being decisive, we propose that the consistency amongst these indicators can serve to assess consciousness in particular species. The integration of scores on the various indicators yields an overall, graded criterion for consciousness, somewhat comparable to the Glasgow Coma Scale for unresponsive patients. When considering theoretically derived measures of consciousness, it is argued that their validity should not be assessed on the basis of a single quantifiable measure, but requires cross-examination across multiple pieces of evidence, including the indicators proposed here. Current intelligent machines, including deep learning neural networks and agile robots, are not indicated to be conscious yet. Instead of assessing machine consciousness by a brief Turing-type of test, evidence for it may gradually accumulate when we study machines ethologically and across time, considering multiple behaviors that require flexibility, improvisation, spontaneous problem-solving and the situational conspectus typically associated with conscious experience. (shrink)

There is a consensus among interpreters that Kant denies non-human animals possess discursive abilities but that he ascribes to them conscious representations in some more primitive sense. I argue this latter interpretive claim is not justified by the textual evidence. There is in Kant’s early published writings and unpublished remarks extensive evidence that he denies animals possess conscious representations. I examine this material in detail. I explain the competing view of Georg Friedrich Meier (1718-1777), at which some of (...) Kant’s early remarks are directed. I then explain Kant’s denial of animal consciousness with reference to his early views on the relation between faculty psychology, the capacity for judgment, and consciousness. Corroborating evidence for Kant’s denial of animal consciousness occurs in remarks in the student lecture notes that span thirty years. I explain why the strongest textual evidence to which interpreters have typically appealed is inadequate for ascribing to Kant a commitment to animal consciousness. This paper helps clarify the interpretive challenges for those who wish to claim the Critical Kant ascribes consciousness to animals. (shrink)

The existence of consciousness in animals may have been overlooked. Continuity in consciousness between humans and animals is predicted by evolutionary theory. However, there are specific methodological difficulties associated with investigating such a phenomenon: it cannot be directly measured; animals, unlike humans, cannot directly tell us about their conscious experience; experiments which have made comparisons to human consciousness cannot detect consciousness of a different form; application of the law of parsimony in science has (...) traditionally led to the conclusion that it does not exist. (shrink)

The issue of the biological origin of consciousness is linked to that of its function. One source of evidence in this regard is the contrast between the types of information that are and are not included within its compass. Consciousness presents us with a stable arena for our actions—the world—but excludes awareness of the multiple sensory and sensorimotor transformations through which the image of that world is extracted from the confounding influence of self-produced motion of multiple receptor arrays (...) mounted on multijointed and swivelling body parts. Likewise excluded are the complex orchestrations of thousands of muscle movements routinely involved in the pursuit of our goals. This suggests that consciousness arose as a solution to problems in the logistics of decision making in mobile animals with centralized brains, and has correspondingly ancient roots. (shrink)

In this essay I argue that many nonhuman animal beings are conscious and have some sense of self. Rather than ask whether they are conscious, I adopt an evolutionary perspective and ask why consciousness and a sense of self evolved---what are they good for? Comparative studies of animal cognition, ethological investigations that explore what it is like to be a certain animal, are useful for answering this question. Charles Darwin argued that the differences in cognitive abilities and emotions among (...) animals are differences in degree rather than differences in kind, and his view cautions against the unyielding claim that humans, and perhaps other great apes and cetaceans, are the only species in which a sense of self-awareness has evolved. I conclude that there are degrees of consciousness and self among animals and that it is likely that no animal has the same highly developed sense of self as that displayed by most humans. Many animals have a sense of “body-ness‘ or “mine-ness‘ but not a sense of “I-ness.‘ Darwin’s ideas about evolutionary continuity, together with empirical data (“science sense‘) and common sense, will help us learn more about consciousness and self in animals. Answers to challenging questions about animal self-awareness have wide-ranging significance, because they are often used as the litmus test for determining and defending the sorts of treatments to which animals can be morally subjected. (shrink)

In a new study, Ben-Haim et al. use subliminal stimuli to separate conscious and unconscious perception in macaques. A programme of this type, using a range of cognitive tasks, is a promising way to look for conscious perception in more controversial cases.

The position advanced in this paper is that the bedrock of emotional feelings is contained within the evolved emotional action apparatus of mammalian brains. This dual-aspect monism approach to brain–mind functions, which asserts that emotional feelings may reflect the neurodynamics of brain systems that generate instinctual emotional behaviors, saves us from various conceptual conundrums. In coarse form, primary process affective consciousness seems to be fundamentally an unconditional “gift of nature” rather than an acquired skill, even though those systems facilitate (...) skill acquisition via various felt reinforcements. Affective consciousness, being a comparatively intrinsic function of the brain, shared homologously by all mammalian species, should be the easiest variant of consciousness to study in animals. This is not to deny that some secondary processes cannot be evaluated in animals with sufficiently clever behavioral learning procedures, as with place-preference procedures and the analysis of changes in learned behaviors after one has induced re-valuation of incentives. Rather, the claim is that a direct neuroscientific study of primary process emotional/affective states is best achieved through the study of the intrinsic , albeit experientially refined, emotional action tendencies of other animals. In this view, core emotional feelings may reflect the neurodynamic attractor landscapes of a variety of extended trans-diencephalic, limbic emotional action systems—including SEEKING, FEAR, RAGE, LUST, CARE, PANIC, and PLAY. Through a study of these brain systems, the neural infrastructure of human and animal affective consciousness may be revealed. Emotional feelings are instantiated in large-scale neurodynamics that can be most effectively monitored via the ethological analysis of emotional action tendencies and the accompanying brain neurochemical/electrical changes. The intrinsic coherence of such emotional responses is demonstrated by the fact that they can be provoked by electrical and chemical stimulation of specific brain zones—effects that are affectively laden. For substantive progress in this emerging research arena, animal brain researchers need to discuss affective brain functions more openly. Secondary awareness processes, because of their more conditional, contextually situated nature, are more difficult to understand in any neuroscientific detail. In other words, the information-processing brain functions, critical for cognitive consciousness, are harder to study in other animals than the more homologous emotional/motivational affective state functions of the brain. (shrink)

Chimpanzee behaviour with mirrors makes it plausible that they can recognise themselves as themselves in mirrors, and so have a 'self-concept'. I defend this claim, and argue that roughly similar behaviour in pigeons, as reported, does not in fact make it equally plausible that they also have this mental capacity. But for all that it is genuine, chimpanzee self-consciousness may differ significantly from ours. I describe one possibility I believe consistent with the data, even if not very plausible: that (...) the chimpanzee is aware of itself only as a material being, and not as a subject of any psychological states. As I try to make clear, this possibility exists even if the chimpanzee has psychological states, and is aware of some of them. (shrink)

Which non-human animals are phenomenally conscious? In this paper I argue that the distribution of phenomenal consciousness in the animal world is ultimately an unsolvable issue, because of an underlying problem inherent in the field: what I call the Kinda Hard Problem. The Kinda Hard Problem arises because the grounds on which we base our consciousness attributions to humans third-personally are either unavailable or ambiguous once we move to the animal case. Its nature is that of an (...) epistemic problem: we cannot collect enough evidential grounds to justify attributions of phenomenal consciousness (and attributions of its lack) to non-human animals. Thus, it is impossible to ground rational belief one way or another regarding animal consciousness. This paper presents the problem and explains how it differs from other problems of consciousness. (shrink)

Claims about consciousness in animals are often made in support of their moral standing. Peter Carruthers argues that there is no fact of the matter about animal consciousness and it is of no scientific or ethical significance. Sympathy for an animal can be grounded in its mental states, but should not rely on assumptions about its consciousness.

One of the primary concerns in animal research is ensuring the welfare of laboratory animals. Modern views on animal welfare emphasize the role of animal sentience, i.e. the capacity to experience subjective states such as pleasure or suffering, as a central component of welfare. The increasing official recognition of animal sentience has had large effects on laboratory animal research. The Cambridge Declaration on Consciousness (Low et al., University of Cambridge, 2012) marked an official scientific recognition of the presence (...) of sentience in mammals, birds, and cephalopods. Animal sentience has furthermore been recognized in legislation in the European Union, UK, New Zealand and parts of Australia, with discussions underway in other parts of the world to follow suit. In this paper, we analyze this shift towards recognition of sentience in the regulation and practice in the treatment of laboratory animals and its effects on animal welfare and use. (shrink)

Definitions of animal welfare often invoke consciousness or sentience. Marian Stamp Dawkins has argued that to define animal welfare this way is a mistake. In Dawkins’s alternative view, an animal with good welfare is one that is healthy and “has what it wants.” The dispute highlights a source of strain on the concept of animal welfare: consciousness-involving definitions are better able to capture the normative significance of welfare, whereas consciousness-free definitions facilitate the validation of welfare indicators. I (...) reflect on how the field should respond to this strain, ultimately recommending against splitting the concept and in favor of consciousness-involving definitions. (shrink)

The marker approach is taken as best practice for answering the distribution question: Which animals are conscious? However, the methodology can be used to increase confidence in animals many presume to be unconscious, including C. elegans, leading to a trilemma: accept the worms as conscious; reject the specific markers; or reject the marker methodology for answering the distribution question. I defend the third option and argue that answering the distribution question requires a secure theory of consciousness. Accepting (...) the hypothesis all animals are conscious will promote research leading to secure theory, which is needed to create reliable consciousness tests for animals and AIs. Rather than asking the distribution question, we should shift to the dimensions question: How are animals conscious? (shrink)

The study of introspection has, up until now, been predominantly human-centric, with regrettably little attention devoted to the question of whether introspection might exist in non-humans, such as animals and artificial intelligence (AI), and what distinct forms it might take. In their target article, Kammerer and Frankish (this issue) aim to address this oversight by offering a non-anthropocentric framework for understanding introspection that could be used to address these questions. However, their discussions on introspection in animals and AIs (...) were quite brief. In this commentary, we will build on their suggestions to offer some methodological guidance for how future research into introspection in animals and AIs might proceed. (shrink)

Dutch investigators continue to play a key role in animal behavior studies today . The present collection of current Dutch writings on animal consciousness ...

Which systems/organisms are conscious? New tests for consciousness (‘C-tests’) are urgently needed. There is persisting uncertainty about when consciousness arises in human development, when it is lost due to neurological disorders and brain injury, and how it is distributed in nonhuman species. This need is amplified by recent and rapid developments in artificial intelligence (AI), neural organoids, and xenobot technology. Although a number of C-tests have been proposed in recent years, most are of limited use, and currently we (...) have no C-tests for many of the populations for which they are most critical. Here, we identify challenges facing any attempt to develop C-tests, propose a multidimensional classification of such tests, and identify strategies that might be used to validate them. (shrink)

Most early studies of consciousness have focused on human subjects. This is understandable, given that humans are capable of reporting accurately the events they experience through language or by way of other kinds of voluntary response. As researchers turn their attention to other animals, “accurate report” methodologies become increasingly difficult to apply. Alternative strategies for amassing evidence for consciousness in non-human species include searching for evolutionary homologies in anatomical substrates and measurement of physiological correlates of conscious states. (...) In addition, creative means must be developed for eliciting behaviors consistent with consciousness. In this paper, we explore whether necessary conditions for consciousness can be established for species as disparate as birds and cephalopods. We conclude that a strong case can be made for avian species and that the case for cephalopods remains open. Nonetheless, a consistent effort should yield new means for interpreting animal behavior. (shrink)

In a world increasingly concerned with the human species and its future, Marian Stamp Dawkins argues that we need to rethink some of the fundamental questions regarding animal welfare. How are we justified in projecting human emotions on to animals? What kind of mental lives do they have? What can science tell us about their quality of life?

The interactions between humans, animals and the environment have shaped human values and ethics, not only the genes that we are made of. The animal rights movement challenges human beings to reconsider interactions between humans and other animals, and maybe connected to the environmental movement that begs us to recognize the fact that there are symbiotic relationships between humans and all other organisms. The first part of this paper looks at types of bioethics, the implications of autonomy and (...) the value of being alive. Then the level of consciousness of these relationships are explored in survey results from Asia and the Pacific, especially in the 1993 International Bioethics Survey conducted in Australia, Hong Kong, India, Israel, Japan, New Zealand, The Philippines, Russia, Singapore and Thailand. Very few mentioned animal consciousness in the survey, but there were more biocentric comments in Australia and Japan; and more comments with the idea of harmony including humans in Thailand. Comparisons between questions and surveys will also be made, in an attempt to describe what people imagine animal consciousness to be, and whether this relates to human ethics of the relationships. (shrink)

This article develops a Hegelian account of self-consciousness by grounding it in being animal. It draws on contemporary naturalist and rationalist philosophy to support a transformative picture of the relationship between self-consciousness and animal purposes, setting work by Danielle Macbeth, Terry Pinkard, Michael Thompson, and Matthew Boyle into dialogue with two passages from Hegel’s Aesthetics. Because we are conscious of them as such, the article argues, our ends are never simply given to us and must be determined, which (...) means working them out collectively. But this makes dependency a structural feature of human life, as attaining the right relation to our ends means finding ourselves through the eyes of others instantiating our lifeform. Grounding these Hegelian insights in a naturalistic understanding of organic norms, we see that we should not oppose the self-transparency afforded by rationality to the opacity of animal drives. The article concludes that the mark of rationality is not the capacity to transcend or control animal instinct but that we can be problems to ourselves. Spiritual life is just natural life: natural life finding itself problematic. (shrink)

It is a consensus that familiarity and recollection contribute to episodic recognition memory. However, it remains controversial whether familiarity and recollection are qualitatively distinct processes supported by different brain regions, or whether they reflect different strengths of the same process and share the same support. In this review, I discuss how adapting standard human recognition memory paradigms to rats, performing circumscribed brain lesions and using receiver operating characteristic methods contributed to solve this controversy. First, I describe the validation of the (...) animal ROC paradigms and report evidence that familiarity and recollection are distinct processes in intact rats. Second, I report results from rats with hippocampal dysfunction which confirm this finding and lead to the conclusion that the hippocampus supports recollection but not familiarity. Finally, I describe a recent study focusing on the medial entorhinal cortex that investigates the contribution of areas upstream of the hippocampus to recollection and familiarity. (shrink)

The standard behavioral index for human consciousness is the ability to report events with accuracy. While this method is routinely used for scientific and medical applications in humans, it is not easy to generalize to other species. Brain evidence may lend itself more easily to comparative testing. Human consciousness involves widespread, relatively fast low-amplitude interactions in the thalamocortical core of the brain, driven by current tasks and conditions. These features have also been found in other mammals, which suggests (...) that consciousness is a major biological adaptation in mammals. We suggest more than a dozen additional properties of human consciousness that may be used to test comparative predictions. Such homologies are necessarily more remote in non-mammals, which do not share the thalamocortical complex. However, as we learn more we may be able to make “deeper” predictions that apply to some birds, reptiles, large-brained invertebrates, and perhaps other species. (shrink)

2010 Reprint of 1905 edition.This work is the magnum opus of Bucke's career, a project that he researched and wrote over many years. In it, Bucke described his own experience, that of contemporaries, and the experiences and outlook of historical figures including Buddha, Jesus, Paul, Plotinus, Muhammad, Dante, Francis Bacon, and William Blake. Bucke developed a theory involving three stages in the development of consciousness: the simple consciousness of animals; the self-consciousness of the mass of humanity (...) ; and cosmic consciousness - an emerging faculty and the next stage of human development. Among the effects of this progression, he believed he detected a lengthy historical trend in which religious conceptions and theologies had become less and less fearful. A classic work. (shrink)

In the following article, I aim to elucidate the meaning and scope of Spinoza’s vocabulary related to ‘consciousness’. I argue that Spinoza, at least in his Ethics, uses this notion consistently, although rarely. He introduces it to account for the knowledge we may have of the mind considered alone, as conceptually distinct from the body. This serves two purposes in Spinoza’s Ethics: to explain our illusion of a free will, on the one hand, and to refer to the knowledge (...) we have of our mind as something eternal, on the other. I contend, therefore, that we should not confuse Spinoza’s technical use of the notion of ‘consciousness’ with the ‘degrees of animation’ that he also evokes in the Ethics. Consciousness, for Spinoza, is neither a faculty, nor a property specific to certain minds or ideas. Furthermore, consciousness does not come in degrees. Indeed, Spinoza’s account of consciousness is not intended to differentiate kinds of minds in terms of awareness of their respective ideas. (shrink)

The development of animal ethics has been characterized by both progress and absurdity. More activity in animal welfare has occurred in the past 50 years than in the previous 500, with large numbers of legislative actions supplanting the lone anti-cruelty laws. Nonetheless, there remains a tendency to confuse animal ethics with human ethics. I found this to be the case when my colleagues and I were drafting federal law requiring control of pain in invasive research. The history of animal ethics (...) vacillates between Descartes’ denial of thought and feeling in animals and British empiricism, including the great skeptic David Hume, who affirmed in no uncertain terms the existence of animal mind. This approach was continued in British empiricism, culminating in the work of Charles Darwin. But despite Darwinian domination of biology and psychology, psychology was captured by denial of mind and consciousness by JB Watson, father of behaviorism. Denial of thought and feeling in animals continued in 20th century science and medicine while society in general became ever more firm in asserting their existence. (shrink)

In animal husbandry in The Netherlands, as in a wide variety of other societal areas, we see an increased awareness of the fact that progress cannot be attained anymore by simply repeating the way we modernized this sector in the decades before, due to the multiplicity of the problems to be dealt with. The theory of reflexive modernization articulates this macro-social phenomenon, and at the same time serves as a prescriptive master-narrative. In this paper, I analyse the relationship between Feenberg's (...) instrumentalization theory and reflexive design; that is, the approach of doing reflexive modernization. Feenberg's analytical distinction between primary and secondary instrumentalization is useful in highlighting the way social and political values are inscribed into technological arrangements, but is not meant as a method. Reflexive design, on the other hand, is meant to be a reflective and deliberative method that aims to articulate, assess and reintegrate hitherto unquestioned values and presuppositions into new designs of production systems. Reflexive design thus may be seen as a conscious strategy of making explicit the separate stages of instrumentalization in advance, instead of criticizing the implicit embedding of dominant values in technological artefacts once they have been realized. The approach is illustrated with a case from animal husbandry. (shrink)

The experience of time and temporally extended events is a fundamental property of mind, and of time-based media arts. In dealing with properties of time, does the operational logic of contemporary media production tools cohere with philosophical views on the experience of time? This article considers a range of views on the phenomenal experience of time as they relate to the production of time-based media. Embedded within our production technologies, the artist is faced with a new philosophical instrument: the production (...) timeline. The timeline utility in most time-based media software (and non-digital precursors) adopts the cinematic model as its operating metaphor; a series of frames, assembled one after the other in sequence. But the timeline brings new temporal complications such as reversibility, hierarchy and modifiability. The timeline also contorts time into a spatialized dimension, represented as a linear vector within the software interface. Automatic adoption of the linear timeline and the frame as the base unit of temporal thinking is problematic. J. M. E. McTaggart’s argument for the unreality of time based on contradictions within a range of possible temporal modal logics is compared with approaches to animation and editing software, and also interactive media software and their unique approach to time as potential events is considered. (shrink)

Animal advocates cannot allow the idea to take hold that only the great apes and certain other “higher” animals are fit to be “persons.” Working to change the moral status of the great apes or sea mammals; for example; is a legitimate and important undertaking; but it should not be done at the expense of other animals. Such thinking is not only disconnected from real animals in the real world; it perpetuates the view that beings belonging to (...) species deemed “nonpersons” or “merely conscious” are of lesser; or no; moral significance until or unless; through an institutionalized system of painful; stressful; and demeaning experiments over decades or centuries; some of them might “prove” themselves worthy of being called persons or semi-persons or sort-of-persons entitled to whatever privileges such designations may confer. (shrink)

This collection opens a dialogue between process philosophy and contemporary consciousness studies. Approaching consciousness from diverse disciplinary perspectives—philosophy, psychology, neuroscience, neuropathology, psychotherapy, biology, animal ethology, and physics—the contributors offer empirical and philosophical support for a model of consciousness inspired by the process philosophy of Alfred North Whitehead (1861–1947). Whitehead’s model is developed in ways he could not have anticipated to show how it can advance current debates beyond well-known sticking points. This has trenchant consequences for epistemology and (...) suggests fresh and promising new perspectives on such topics as the mind-body problem, the neurobiology of consciousness, animal consciousness, the evolution of consciousness, panpsychism, the unity of consciousness, epiphenomenalism, free will, and causation. Contents: Introduction, Michel Weber & Anderson Weekes I. Setting the Stage 1. Process Thought as a Heuristic for Investigating Consciousness, Michel Weber & Anderson Weekes 2. Whitehead as a Neglected Figure of 20th Century Philosophy, Michel Weber & Anderson Weekes 3. Consciousness as a Topic of Investigation in Western Thought, Anderson Weekes 4. Whitehead’s Unique Approach to the Topic of Consciousness, Anderson Weekes II. Psychology and Philosophy of Mind 5. Consciousness as a Subjective Form, David Ray Griffin 6. The Interpretation and Integration of the Literature on Consciousness from a Process Perspective, Michael W. Katzko 7. Windows on Nonhuman Minds, Donald R. Griffin III. From Metaphysics to (Neuro)Science and Back Again 8. Panexperientialism, Quantum Theory, and Neuroplasticity, George W. Shields 9. The Evolution of Consciousness, Max Velmans 10. The Carrier Theory Of Causation, Gregg H. Rosenberg IV. Clinical Applications: Consciousness as Process 11. The Microgenetic Revolution in Contemporary Neuropsychology and Neurolinguistics, Maria Pachalska and Bruce Duncan MacQueen 12. From Coma to Consciousness, Avraham Schweiger, Michael Frost, Ofer Keren 13. Consciousness and Rationality from a Process Perspective, Michel Weber V. History (and Future?) of Philosophy 14. Consciousness, Memory, and Recollection according to Whitehead, Xavier Verley 15. Consciousness and Causation in Light of Whitehead’s Phenomenology of Becoming, Anderson Weekes. (shrink)

An enquiry into plant consciousness requires, on the one hand, taking into account recent experiments in plant biology and, on the other hand, refining the theoretical framework of behaviour and the various degrees of cognition. The main goal of this contribution is to advance such a framework by comparing classical animal and human cognition approaches with the theories of minimal cognition. This leads us to interpret more carefully the various plant activities and to highlight the limits of classical theories (...) of zoocentric cognition. In particular, the article shows that the notions of cognition and consciousness are often abusively confused, and with that of behaviour. Once this ambiguity is removed, it is possible to better distinguish several meanings of consciousness and to evaluate their relevance to plant activities. (shrink)

By pushing Descartes to more clearly explain the union of body and soul beyond the functioning of a ‘strong’ passion, namely sadness, Elisabeth wants Descartes to review his idea of the passions, and his understanding of the ‘theory of the four humors’. This chapter aims at showing that Descartes turns away from Galen’s theory of the humors, which he globally adopts in the 1633 Treatise of Man. With the shift in his conceptualization of the humors between this Treatise and the (...) Treatise of the Passions (1649), Descartes analyzed more specifically the inner feelings, consciousness, and the passions, by considering that a man is not simply a body, but a psychophysical being, with a body and a soul. (shrink)

A mechanistic study of consciousness need not be confined to human complexity. Other animals also display key behaviors and responses that have long been intimately tied to the measure of consciousness in humans. Among them are some very well-defined and measurable endpoints: selective attention, sleep and general anesthesia. That these three variables associated with changes in consciousness might exist even in a fruit-fly does not necessarily imply that a fly is “conscious”, but it does suggest that (...) some of the problems central to the field of consciousness studies could be investigated in a model organism such as Drosophila melanogaster. Demonstrating suppression of unattended stimuli, which is central to attention studies in humans, is now possible in Drosophila by measuring neural correlates of visual selection. By combining such studies with an eventual understanding of suppression in other arousal states in the fly, such as sleep and general anesthesia, we might be unraveling mechanisms relevant to consciousness as well. BioEssays 27:321–330, 2005. © 2005 Wiley Periodicals, Inc. (shrink)

This article surveys philosophical and scientific issues arising from questions about animal consciousness. These questions include: which animals have consciousness and what (if anything) that consciousness might be like. Just what sort(s) of science can bear on these questions is a live issue, but investigations of the behavior and neurophysiology of a wide taxonomic range of animals, as well as the phylogenetic relationships among taxa are relevant. Such questions are also deeply philosophical, with epistemological, metaphysical, (...) and phenomenological dimensions. Progress will ultimately require interdisciplinary work by philosophers willing to engage with the empirical details of animal biology, as well as scientists who are sensitive to the philosophical complexities of the issue. The article discusses motivations for studying animal consciousness, and the common framing of such issues by analogy to the human case. Various concepts of consciousness, their historical background, and the related epistemological and metaphysical issues are described. Theories about the structure and function of consciousness are identified and assessed in the context of ideas about the evolution and distribution of consciousness, and comparative approaches to specific cognitive capacities that have often been taken to indicate that humans are not the only conscious animals. (shrink)

Peter Carruthers has recently argued for a surprising conditional: if a global workspace theory of phenomenal consciousness is both correct and fully reductive, then there are no substantive facts to discover about phenomenal consciousness in nonhuman animals. I present two problems for this conditional. First, it rests on an odd double-standard about the ordinary concept of phenomenal consciousness: its intuitive non-gradability is taken to be unchallengeable by future scientific developments, whereas its intuitive determinacy is predicted to (...) fall by the wayside. Second, it relies on dismissing, prematurely, the live empirical possibility that phenomenal consciousness may be linked to a core global broadcast mechanism that is shared by a wide range of animals. Future developments in the science of consciousness may lead us to reconsider the non-gradability of phenomenal consciousness, but they are unlikely to lead us to accept that there are no facts to discover outside the paradigm case of a healthy adult human. (shrink)

Since Norbert Wiener presented a new research field called the study of control and communication in the animal and the machine, the biological and the artificial universes are each time more integrated as pieces of a game that involves science, philosophy, technology, arts, architecture and several other fields. It is astonishing to take a look at an imaginary non-linear timeline where it is possible to see the ancient Ars Mnemonica inspiring the Leibniz combinatoria and how all these virtual knowledge structures (...) inspired the development of a communication and control machine called the computer. A machine that is quite an exploded black box artificial systems integrated into biological systems in a cybernetic structure through which most diverse kinds of information flows. We are living in times in which the logic of this machine becomes the core of our post-biological era in its essence, the era in which the biological and artificial realms are immersed in one another. An era in which we see [] humans in fact integrating with the fiction of their imagination as conjured up digitally by the computer, and in which the digital arts emanating from the cosmology of number are also a link between digital finality and infinity imagination, defending man in his impossibility to be simulated (Weibel 1999: 222). Considering this panorama in the contemporary artistic context, it could be stimulating to think about interactive digital art installations as systems in which the elements are both organic and artificial, both physical and virtual, interconnected like they were performing a cybernetic ballet. The aim of the present research is to study this choreography using the complex sciences framework. Following this objective, a series of parameters based on systemic measures of organization and complexity were structured. Our intention is, obviously, not to say that the work of art is more or less systemic, more or less complex or organized, but to help in understanding and to conceive the installation as a system: a complex adaptive system (CAS). (shrink)

Should models of consciousness be detailed _mechanistic_ models of particular types of systems, or should they be _minimal_ models that abstract away from the underlying mechanistic details and provide generalisations? Detailed mechanistic models may afford a complete and precise account of consciousness in human beings and other, physiologically similar mammals. But they do not provide a good model of consciousness in other animals, such as non-vertebrates, let alone artificial systems. Minimal models can be applicable to a (...) wide range of different conscious systems. But do they provide genuine explanations that are autonomous from explanations by detailed mechanistic models? This paper provides a taxonomy of minimal models and measures of consciousness, clarifies their relation to detailed mechanistic models, and highlights benefits of different minimalist approaches to consciousness. (shrink)

How does consciousness vary across the animal kingdom? Are some animals ‘more conscious’ than others? This article presents a multidimensional framework for understanding interspecies variation in states of consciousness. The framework distinguishes five key dimensions of variation: perceptual richness, evaluative richness, integration at a time, integration across time, and self-consciousness. For each dimension, existing experiments that bear on it are reviewed and future experiments are suggested. By assessing a given species against each dimension, we can construct (...) a consciousness profile for that species. On this framework, there is no single scale along which species can be ranked as more or less conscious. Rather, each species has its own distinctive consciousness profile. (shrink)