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Alfredo Pereira Jr [16]Alfredo Pereira [7]Alfredo F. Pereira [1]
  1. Consciousness and Cosmos: Building an Ontological Framework.Alfredo Pereira Jr, Chris Nunn, Greg Nixon & Massimo Pregnolato - 2018 - Journal of Consciousness Studies 25 (3-4):181-205.
    Contemporary theories of consciousness are based on widely different concepts of its nature, most or all of which probably embody aspects of the truth about it. Starting with a concept of consciousness indicated by the phrase “the feeling of what happens” (the title of a book by Antonio Damásio), we attempt to build a framework capable of supporting and resolving divergent views. We picture consciousness in terms of Reality experiencing itself from the perspective of cognitive agents. Each conscious experience is (...)
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  2.  24
    The Projective Theory of Consciousness: From Neuroscience to Philosophical Psychology.Alfredo Pereira Jr - 2018 - Trans/Form/Ação 41 (s1):199-232.
    : The development of the interdisciplinary areas of cognitive, affective and action neurosciences contributes to the identification of neurobiological bases of conscious experience. The structure of consciousness was philosophically conceived a century ago as consisting of a subjective pole, the bearer of experiences, and an objective pole composed of experienced contents. In more recent formulations, Nagel refers to a “point of view”, in which qualitative experiences are anchored, while Velmans understands that phenomenal content is composed of mental representations “projected” to (...)
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  3.  29
    What is Consciousness?: Towards a Preliminary Definition.Alfredo Pereira Jr & H. Ricke - 2009 - Journal of Consciousness Studies 16 (5):28-45.
    There is little or no general agreement about what researchers should focus on when studying consciousness. The most active scientific studies often use the methods of Cognitive Neuroscience and focus mainly on vision. Other aspects and contents of consciousness, namely thoughts and emotions, are much less studied, possibly leading to a biased view of what consciousness is and how it works. In this essay we describe what we call a referential nucleus, implicit in much of consciousness research. In this context, (...)
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  4.  21
    Neuromodulation, Emotional Feelings and Affective Disorders.Alfredo Pereira & Fushun Wang - 2016 - Mens Sana Monographs 14 (1):5.
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  5.  41
    Understanding Consciousness: A Collaborative Attempt to Elucidate Contemporary Theories.Alfredo Pereira Jr, J. Edwards, C. Nunn, A. Trehub & M. Velmans - 2010 - Journal of Consciousness Studies 17 (5-6):5-6.
    Nature Network Groups hosted an invited workshop on 'Theories of Consciousness' during the second semester of 2009. There were presentations by each of 15 authors active in the field, followed by debate with other presenters and invitees. A week was allocated to each of the theories proposed; general discussion threads were also opened from time to time, as seemed appropriate. We offer here an account of the principal outcomes. It can be regarded as a contemporary, 'state of the art' snapshot (...)
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  6.  54
    What Affective Neuroscience Means for Science of Consciousness.Leonardo Ferreira Almada, Alfredo Pereira Jr & Claudia Carrara-Augustenborg - 2013 - Mens Sana Monographs 11 (1):253.
    The field of affective neuroscience has emerged from the efforts of Jaak Panksepp in the 1990s and reinforced by the work of, among others, Joseph LeDoux in the 2000s. It is based on the ideas that affective processes are supported by brain structures that appeared earlier in the phylogenetic scale (as the periaqueductal gray area), they run in parallel with cognitive processes, and can influence behaviour independently of cognitive judgements. This kind of approach contrasts with the hegemonic concept of conscious (...)
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  7. The Quantum Mind/Classical Brain Problem.Alfredo Pereira - 2003 - Neuroquantology.
  8. Is Global Workspace a Cartesian Theater? How the Neuro-Astroglial Interaction Model Solves Conceptual Issues.Samuel Bellini-Leite & Alfredo Pereira - 2013 - Journal of Cognitive Science 14 (4):335-360.
    The Global Workspace Theory (GWT) proposed by Bernard Baars (1988) along with Daniel Dennett’s (1991) Multiple Drafts Model (MDM) of consciousness are renowned cognitive theories of consciousness bearing similarities and differences. Although Dennett displays sympathy for GWT, his own MDM does not seem to be fully compatible with it. This work discusses this compatibility, by asking if GWT suffers from Daniel Dennett’s criticism of what he calls a “Cartesian Theater”. We identified in Dennett 10 requirements for avoiding the Cartesian Theater. (...)
     
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  9.  67
    Toward an Explanation of the Genesis of Ketamine-Induced Perceptual Distortions and Hallucinatory States.Alfredo Pereira Jr - 2003 - Brain and Mind 4 (3):307-326.
    The NMDA receptor (NMDAR) channel has been proposed to function as a coincidence-detection mechanism for afferent and reentrant signals, supporting conscious perception, learning, and memory formation. In this paper we discuss the genesis of distorted perceptual states induced by subanesthetic doses of ketamine, a well-known NMDA antagonist. NMDAR blockage has been suggested to perturb perceptual processing in sensory cortex, and also to decrease GABAergic inhibition in limbic areas (leading to an increase in dopamine excitability). We propose that perceptual distortions and (...)
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  10. Brain and Behavioral Functions Supporting the Intentionality of Mental States.João de F. Teixeira & Alfredo Pereira Jr - 2008 - Abstracta 4 (2):123-147.
    This paper relates intentionality, a central feature of human consciousness, with brain functions controlling adaptive action. Mental intentionality, understood as the “aboutness” of mental states, includes two modalities: semantic intentionality, the attribution of meaning to mental states, and projective intentionality, the projection of conscious content into the world. We claim that both modalities are the evolutionary product of self-organized action, and discuss examples of animal behavior that illustrate some stages of this evolution. The adaptive advantages of self-organized action impacted on (...)
     
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  11.  74
    Peter Gärdenfors, Conceptual Spaces: The Geometry of Thought: Bradford/MIT Press, Cambridge/London, 2004, Xi+307, Paperback, $19, ISBN 0-262-57219-2. [REVIEW]Alfredo Pereira - 2007 - Minds and Machines 17 (4):493-496.
  12. Systems, Self-Organization and Information: An Interdisciplinary Perspective.Alfredo Pereira & William Alfred Pickering - 2018 - Routledge.
    Complex system studies are a growing area of central importance to a wide range of disciplines, ranging from physics to politics and beyond. Adopting this interdisciplinary approach, Systems, Self-Organisation and Information presents and discusses a range of ground-breaking research in complex systems theory. Building upon foundational concepts, the volume introduces a theory of Self-Organization, providing definitions of concepts including system, structure, organization, functionality, and boundary. Biophysical and cognitive approaches to Self-Organization are also covered, discussing the complex dynamics of living beings (...)
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  13. Trapped Ion Quantum Computing And The Principles Of Logic.Alfredo Pereira Jr & Roberson Polli - 2006 - Manuscrito 29 (2):559-573.
    An experimental realization of quantum computers is composed of two or more calcium ions trapped in a magnetic quadripole. Information is transferred to and read from the ions by means of structured lasers that interact with the ions’ vibration pattern, causing changes of energy distribution in their electronic structure. Departing from an initial state when the ions are cooled, the use of lasers modifies the internal state of one ion that is entangled with the others, then changing the collective states. (...)
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  14. Uma Reflexão a Respeito da Evolução Humana E a Natureza da Linguagem.Alfredo Pereira Jr - 2007 - Abstracta 3 (2):138-161.
    In this paper I discuss scientific and philosophical issues related to the interdisciplinary area of Neurolinguistics, focusing on the origin and nature of human language. What kind of evolutionary process leads to the emergence of language? I propose that this process began with the adoption of bipedalism, triggering the co-evolution of new brain structures and forms of social organization. This process created a context that favoured the emergence of articulated vocalization using a combinatorial linguistic system. The identification of sufficient conditions (...)
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  15.  59
    Steven Horst, Beyond Reduction: Philosophy of Mind and Post-Reductionist Philosophy of Science, Philosophy of Mind Series. [REVIEW]Alfredo Pereira - 2008 - Minds and Machines 18 (3):421-423.
  16. Grounding Word Learning in Multimodal Sensorimotor Interaction.Chen Yu, Linda B. Smith & Alfredo F. Pereira - 2008 - In B. C. Love, K. McRae & V. M. Sloutsky (eds.), Proceedings of the 30th Annual Conference of the Cognitive Science Society. Cognitive Science Society. pp. 1017--1022.
  17. Coexisting Spatio-Temporalsscales in Neuroscience.Alfredo Pereira - 2001 - Minds and Machines 11 (4).
    In this study I propose an epistemological discussion of multiple spatio-temporal scales in neuroscience. Are such scales merely convenient levels of description of structure and function, or do they correspond to irreducible levels of brain organization? What criteria should we employ in order to reduce one level to another, or to identify levels that are not reducible to others? Should we think of these criteria as based on empirical and/or theoretical reasons? Beginning with an empirical criterion – the necessity of (...)
     
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  18.  11
    Symbolic Expressions of the Human Cognitive Architecture.Enidio Ilario, Alfredo Pereira Jr & Valdir Gonzalez Paixão Jr - 2016 - Dialogue and Universalism 26 (1):107-120.
    We briefly review and discuss symbolic expressions of the cognitive architecture of the human mind/brain, focusing on the Quaternion, the Axis Mundi and the Tree of Life, and elaborate on a quaternary diagram that expresses a contemporary worldview. While traditional symbols contain vertical and horizontal dimensions related to transcendence and immanence, respectively, in the contemporary interpretation the vertical axis refers to diachronic processes as biological evolution and cultural history, while the horizontal axis refers to synchronic relations as the interactions of (...)
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  19.  11
    What The Cognitive Neurosciences Mean To Me.Alfredo Pereira Jr - 2007 - Mens Sana Monographs 5 (1):158.
    _Cognitive Neuroscience is an interdisciplinary area of research that combines measurement of brain activity (mostly by means of neuroimaging) with a simultaneous performance of cognitive tasks by human subjects. These investigations have been successful in the task of connecting the sciences of the brain (Neurosciences) and the sciences of the mind (Cognitive Sciences). Advances on this kind of research provide a map of localization of cognitive functions in the human brain. Do these results help us to understand how mind relates (...)
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  20.  9
    Trapped Ion Quantum Computing and the Principles of Logic.Alfredo Pereira Jr & Roberson Polli - 2005 - Manuscrito 28 (2):559-573.
    An experimental realization of quantum computers is composed of two or more calcium ions trapped in a magnetic quadripole. Information is transferred to and read from the ions by means of structured lasers that interact with the ions’ vibration pattern, causing changes of energy distribution in their electronic structure. Departing from an initial state when the ions are cooled, the use of lasers modifies the internal state of one ion that is entangled with the others, then changing the collective states. (...)
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  21.  9
    Recent Advances in Brain Physiology and Cognitive Processing.Alfredo Pereira Jr, Maria AliceOrnellas Pereira & FábioAugusto Furlan - 2011 - Mens Sana Monographs 9 (1):183.
    The discovery of participation of astrocytes as active elements in glutamatergic tripartite synapses (composed by functional units of two neurons and one astrocyte) has led to the construction of models of cognitive functioning in the human brain, focusing on associative learning, sensory integration, conscious processing and memory formation/retrieval. We have modelled human cognitive functions by means of an ensemble of functional units (tripartite synapses) connected by gap junctions that link distributed astrocytes, allowing the formation of intra- and intercellular calcium waves (...)
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  22.  4
    Apresentação.Alfredo Pereira Jr - 2018 - Trans/Form/Ação 41 (s1):9-12.
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  23. Uma Reflexão a Respeito da Evolução Humana E a Natureza da Linguagem.Alfredo Pereira Jr - 2007 - Abstracta 3 (2):138-161.
    In this paper I discuss scientific and philosophical issues related to the interdisciplinary area of Neurolinguistics, focusing on the origin and nature of human language. What kind of evolutionary process leads to the emergence of language? I propose that this process began with the adoption of bipedalism, triggering the co-evolution of new brain structures and forms of social organization. This process created a context that favoured the emergence of articulated vocalization using a combinatorial linguistic system. The identification of sufficient conditions (...)
     
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  24.  5
    Recent Advances in Brain Physiology and Cognitive Processing.Alfredo Pereira Jr, Maria Ornellas Pereira & Fábio Furlan - 2011 - Mens Sana Monographs 9 (1):183-192.
    The discovery of participation of astrocytes as active elements in glutamatergic tripartite synapses has led to the construction of models of cognitive functioning in the human brain, focusing on associative learning, sensory integration, conscious processing and memory formation/retrieval. We have modelled human cognitive functions by means of an ensemble of functional units connected by gap junctions that link distributed astrocytes, allowing the formation of intra- and intercellular calcium waves that putatively mediate large-scale cognitive information processing. The model contains a diagram (...)
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