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  1. Perceptual consciousness overflows cognitive access.Ned Block - 2011 - Trends in Cognitive Sciences 15 (12):567-575.
    One of the most important issues concerning the foundations ofconscious perception centerson thequestion of whether perceptual consciousness is rich or sparse. The overflow argument uses a form of ‘iconic memory’ toarguethatperceptual consciousnessisricher (i.e.,has a higher capacity) than cognitive access: when observing a complex scene we are conscious of more than we can report or think about. Recently, the overflow argumenthas been challenged both empirically and conceptually. This paper reviews the controversy, arguing that proponents of sparse perception are committed to the (...)
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  • Perception and Iconic Memory: What Sperling Doesn't Show.Ian B. Phillips - 2011 - Mind and Language 26 (4):381-411.
    Philosophers have lately seized upon Sperling's partial report technique and subsequent work on iconic memory in support of controversial claims about perceptual experience, in particular that phenomenology overflows cognitive access. Drawing on mounting evidence concerning postdictive perception, I offer an interpretation of Sperling's data in terms of cue-sensitive experience which fails to support any such claims. Arguments for overflow based on change-detection paradigms (e.g. Landman et al., 2003; Sligte et al., 2008) cannot be blocked in this way. However, such paradigms (...)
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  • Consciousness, Accessibility, and the Mesh between Psychology and Neuroscience.Ned Block - 2007 - Behavioral and Brain Sciences 30 (5):481--548.
    How can we disentangle the neural basis of phenomenal consciousness from the neural machinery of the cognitive access that underlies reports of phenomenal consciousness? We can see the problem in stark form if we ask how we could tell whether representations inside a Fodorian module are phenomenally conscious. The methodology would seem straightforward: find the neural natural kinds that are the basis of phenomenal consciousness in clear cases when subjects are completely confident and we have no reason to doubt their (...)
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  • Two neural correlates of consciousness.Ned Block - 2005 - Trends in Cognitive Sciences 9 (2):46-52.
    Neuroscientists continue to search for 'the' neural correlate of consciousness (NCC). In this article, I argue that a framework in which there are at least two distinct NCCs is increasingly making more sense of empirical results than one in which there is a single NCC. I outline the distinction between phenomenal NCC and access NCC, and show how they can be distinguished by experimental approaches, in particular signal- detection theory approaches. Recent findings in cognitive neuroscience provide an empirical case for (...)
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  • (2 other versions)On a confusion about a function of consciousness.Ned Block - 1995 - Brain and Behavioral Sciences 18 (2):227-–247.
    Consciousness is a mongrel concept: there are a number of very different "consciousnesses." Phenomenal consciousness is experience; the phenomenally conscious aspect of a state is what it is like to be in that state. The mark of access-consciousness, by contrast, is availability for use in reasoning and rationally guiding speech and action. These concepts are often partly or totally conflated, with bad results. This target article uses as an example a form of reasoning about a function of "consciousness" based on (...)
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  • (5 other versions)What is it like to be a bat?Thomas Nagel - 1974 - Philosophical Review 83 (October):435-50.
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  • Perceptual illusions in brief visual presentations.Vincent de Gardelle, Jérôme Sackur & Sid Kouider - 2009 - Consciousness and Cognition 18 (3):569-577.
    We often feel that our perceptual experience is richer than what we can express. For instance, when flashed with a large set of letters, we feel that we can see them all, while we can report only a few. However, the nature of this subjective impression remains highly debated: while many favour a dissociation between two forms of consciousness , others contend that the richness of phenomenal experience is a mere illusion. Here we addressed this question with a classical partial-report (...)
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  • Finessing the Bored Monkey Problem.Ned Block - 2020 - Trends in Cognitive Sciences 24 (1):1-2.
    This is a response to Ian Phillips and Jorge Morales, "The Fundamental Problem with No-Cognition Paradigms," Trends in Cognitive Sciences, 2020.
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  • The Fundamental Problem with No-Cognition Paradigms.Ian B. Phillips & Jorge Morales - 2020 - Trends in Cognitive Sciences:1-2.
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  • What Is Wrong with the No-Report Paradigm and How to Fix It.Ned Block - 2019 - Trends in Cognitive Sciences 23 (12):1003-1013.
    Is consciousness based in prefrontal circuits involved in cognitive processes like thought, reasoning, and memory or, alternatively, is it based in sensory areas in the back of the neocortex? The no-report paradigm has been crucial to this debate because it aims to separate the neural basis of the cognitive processes underlying post-perceptual decision and report from the neural basis of conscious perception itself. However, the no-report paradigm is problematic because, even in the absence of report, subjects might engage in post-perceptual (...)
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  • Rich conscious perception outside focal attention.Ned Block - 2014 - Trends in Cognitive Sciences 18 (9):445-447.
    Can we consciously see more items at once than can be held in visual working memory? This question has elud- ed resolution because the ultimate evidence is subjects’ reports in which phenomenal consciousness is filtered through working memory. However, a new technique makes use of the fact that unattended ‘ensemble prop- erties’ can be detected ‘for free’ without decreasing working memory capacity.
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  • Consciousness cannot be separated from function.Michael A. Cohen & Daniel C. Dennett - 2011 - Trends in Cognitive Sciences 15 (8):358--364.
    Here, we argue that any neurobiological theory based on an experience/function division cannot be empirically confirmed or falsified and is thus outside the scope of science. A ‘perfect experiment’ illustrates this point, highlighting the unbreachable boundaries of the scientific study of consciousness. We describe a more nuanced notion of cognitive access that captures personal experience without positing the existence of inaccessible conscious states. Finally, we discuss the criteria necessary for forming and testing a falsifiable theory of consciousness.
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  • (5 other versions)What is it like to be a bat?Thomas Nagel - 1979 - In Mortal questions. New York: Cambridge University Press. pp. 435 - 450.
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  • Introspection and subliminal perception.Thomas Zoega Ramsøy & Morten Overgaard - 2004 - Phenomenology and the Cognitive Sciences 3 (1):1-23.
    Subliminal perception (SP) is today considered a well-supported theory stating that perception can occur without conscious awareness and have a significant impact on later behaviour and thought. In this article, we first present and discuss different approaches to the study of SP. In doing this, we claim that most approaches are based on a dichotomic measure of awareness. Drawing upon recent advances and discussions in the study of introspection and phenomenological psychology, we argue for both the possibility and necessity of (...)
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  • Separate neural definitions of visual consciousness and visual attention: A case for phenomenal awareness.Victor A. F. Lamme - 2004 - Neural Networks 17 (5):861-872.
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  • (1 other version)The information available in visual presentations.George Sperling - 1960 - Psychological Monographs 74:1-29.
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  • Do we still need phenomenal consciousness? Comment on Block.Sid Kouider, Jérôme Sackur & Vincent de Gardelle - 2012 - Trends in Cognitive Sciences 16 (3):140-141.
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  • What is the Bandwidth of Perceptual Experience?Michael A. Cohen, Daniel C. Dennett & Nancy Kanwisher - 2016 - Trends in Cognitive Sciences 20 (5):324-335.
    Although our subjective impression is of a richly detailed visual world, numerous empirical results suggest that the amount of visual information observers can perceive and remember at any given moment is limited. How can our subjective impressions be reconciled with these objective observations? Here, we answer this question by arguing that, although we see more than the handful of objects, claimed by prominent models of visual attention and working memory, we still see far less than we think we do. Taken (...)
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  • Windows of Integration Hypothesis Revisited.Rony Hirschhorn, Ofer Kahane, Inbal Gur-Arie, Nathan Faivre & Liad Mudrik - 2021 - Frontiers in Human Neuroscience 14.
    In the ongoing research of the functions of consciousness, special emphasis has been put on integration of information: the ability to combine different signals into a coherent, unified one. Several theories of consciousness hold that this ability depends on – or at least goes hand in hand with – conscious processing. Yet some empirical findings have suggested otherwise, claiming that integration of information could take place even without awareness. Trying to reconcile this apparent contradiction, the “windows of integration” hypothesis claims (...)
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  • We See More Than We Can Report “Cost Free” Color Phenomenality Outside Focal Attention.Zohar Z. Bronfman, Noam Brezis, Hilla Jacobson & Marius Usher - 2014 - Psychological Science 25 (7):1394-1403.
    The distinction between access consciousness and phenomenal consciousness is a subject of intensive debate. According to one view, visual experience overflows the capacity of the attentional and working memory system: We see more than we can report. According to the opposed view, this perceived richness is an illusion—we are aware only of information that we can subsequently report. This debate remains unresolved because of the inevitable reliance on report, which is limited in capacity. To bypass this limitation, this study utilized (...)
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