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A Direct Comparison of Unconscious Face Processing Under Masking and Interocular SuppressionIn Julien Dubois & Nathan Faivre (eds.), Invisible, but how?: the depth of unconscious processing as inferred from different suppression techniques, Frontiers Media Sa. 2015.
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18Preface : consciousness redux -- What is consciousness? -- Who is conscious? -- Animal consciousness -- Consciousness and the rest -- Consciousness and the brain -- Tracking the footprints of consciousness -- Why we need a theory of consciousness -- Of wholes -- Tools to measure consciousness -- The uber-mind and pure consciousness -- Does consciousness have a function? -- Computationalism and experience -- Computers can't simulate experience -- Consciousness : here, there but not everywhere -- …Read more
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Computational Modelling of Visual AttentionNature Reviews Neuroscience 2. 2001.Five important trends have emerged from recent work on computational models of focal visual attention that emphasize the bottom-up, image-based control of attentional deployment. First, the perceptual saliency of stimuli critically depends on the surrounding context. Second, a unique 'saliency map' that topographically encodes for stimulus conspicuity over the visual scene has proved to be an efficient and plausible bottom-up control strategy. Third, inhibition of return, the process by which th…Read more
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50IIT, half masked and half disfiguredBehavioral and Brain Sciences 45. 2022.The target article misrepresents the foundations of integrated information theory and ignores many essential publications. It, thus, falls to this lead commentary to outline the axioms and postulates of IIT and correct major misconceptions. The commentary also explains why IIT starts from phenomenology and why it predicts that only select physical substrates can support consciousness. Finally, it highlights that IIT's account of experience – a cause–effect structure quantified by integrated info…Read more
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1Consciousness: Here, There and Everywhere?Philosophical Transactions of the Royal Society B: Biological Sciences 370 (1668): 20140167. 2015.The science of consciousness has made great strides by focusing on the behavioural and neuronal correlates of experience. However, while such correlates are important for progress to occur, they are not enough if we are to understand even basic facts, for example, why the cerebral cortex gives rise to consciousness but the cerebellum does not, though it has even more neurons and appears to be just as complicated. Moreover, correlates are of little help in many instances where we would like to kn…Read more
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Rapid natural scene categorization in the near absence of attentionProceedings of the National Academy of Sciences of the United States of America 99 (14): 9596. 2002.
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34Visual awareness and the thalamic intralaminar nucleiConsciousness and Cognition 4 (2): 163-66. 1995.We argue that the current known anatomy of connections between the intralaminar nuclei of the thalmus and visual cortical areas makes it unlikely that neuronal activity in the ILN mediates visual awareness
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87Single-neuron correlates of subjective vision in the human medial temporal lobeProceedings of the National Academy of Science Usa 99 8378-8383. 2002.
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697Response to Mole: Subjects can attend to completely invisible objectsTrends in Cognitive Sciences 12 (2): 44-45. 2008.
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1094Top-down attention and consciousness: comment on Cohen et alTrends in Cognitive Sciences 16 (11): 527. 2012.
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1Neural mechanisms underlying temporal aspects of conscious visual perceptionIn Haluk Ögmen & Bruno G. Breitmeyer (eds.), The First Half Second: The Microgenesis and Temporal Dynamics of Unconscious and Conscious Visual Processes, Mit Press. pp. 275-294. 2006.
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46Sparse but not ‘Grandmother-cell’ coding in the medial temporal lobeTrends in Cognitive Sciences 12 (3): 87-91. 2008.
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4Competition and selection during visual procesing of natural scenes and objectsJournal of Vision 3 (1). 2003.
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44Continuous flash suppression reduces negative afterimagesNature Neuroscience 8 (8): 1096-1101. 2005.Illusions that produce perceptual suppression despite constant retinal input are used to manipulate visual consciousness. Here we report on a powerful variant of existing techniques, Continuous Flash Suppression. Distinct images flashed successively around 10 Hz into one eye reliably suppress an image presented to the other eye. Compared to binocular rivalry, the duration of perceptual suppression increased more than 10-fold. Using this tool we show that the strength of the negative afterimage o…Read more
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26The neuroanatomy of visual consciousnessIn H. Jasper, L. Descarries, V. Castellucci & S. Rossignol (eds.), Consciousness: At the Frontiers of Neuroscience, Lippincott-raven. 1998.
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Free Will, Physics, Biology and the Brain: An IntroductionIn Nancey Murphy, George Ellis, O. ’Connor F. R. & Timothy (eds.), Downward Causation and the Neurobiology of Free Will, Springer Verlag. pp. 1--23. 2009.
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62Motion-induced blindness does not affect the formation of negative afterimagesConsciousness and Cognition 13 (4): 691-708. 2004.Aftereffects induced by invisible stimuli constitute a powerful tool to investigate what type of neural information processing can occur in the absence of visual awareness. This approach has been successfully used to demonstrate that awareness of oriented gratings or translating stimuli is not necessary to obtain a robust orientation-specific or motion-specific aftereffect. We exploit motion-induced blindness to investigate the related question of the influence of visual awareness on the formati…Read more
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10Toward the neuronal substrate of visual consciousnessIn Stuart R. Hameroff, Alfred W. Kaszniak & A. C. Scott (eds.), Toward a Science of Consciousness, Mit Press. 1996.
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36Large-Scale Neuronal Theories of the Brain (edited book)MIT Press. 1994.This book originated at a small and informal workshop held in December of 1992 in Idyllwild, a relatively secluded resort village situated amid forests in the ...
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1275Attention and consciousness: Related yet differentTrends in Cognitive Sciences 16 (2): 103-105. 2012.
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1Some thoughts on consciousness and neuroscienceIn Michael S. Gazzaniga (ed.), The New Cognitive Neurosciences: 2nd Edition, Mit Press. 2000.
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92Free will, physics, biology, and the brainIn Nancey Murphy, George Ellis, O. ’Connor F. R. & Timothy (eds.), Downward Causation and the Neurobiology of Free Will, Springer Verlag. pp. 31--52. 2009.
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29A direct comparison of unconscious face processing under masking and interocular suppressionFrontiers in Psychology 5. 2014.
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75Understanding awareness at the neuronal levelBehavioral and Brain Sciences 14 (4): 683-685. 1991.
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86Phenomenology Without Conscious Access is A Form of Consciousness Without Top-down AttentionBehavioral and Brain Sciences 30 (5-6): 509-510. 2007.We agree with Block's basic hypothesis postulating the existence of phenomenal consciousness without cognitive access. We explain such states in terms of consciousness without top-down, endogenous attention and speculate that their correlates may be a coalition of neurons that are consigned to the back of cortex, without access to working memory and planning in frontal cortex
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What is the relationship between a visual percept and the underlying neuronal activity in parts of the brain? This manifesto reviews the theoretical framework of Crick and Kochfor answering these questions based on the neuroanatomy and physiology of mammalian cortex and associated subcortical structures. This evidence suggests that primates are not directly aware of neural activity in primary visual cortex, although they may be aware of such activity in extrastriate cortical areas. Psychophysica…Read more
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225The Quest for Consciousness: A Neurobiological ApproachRoberts & Company. 2004.In "The Quest for Consciousness," Caltech neuroscientist Christof Koch explores the biological basis of consciousness.