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  1. Signal detection theory, the exclusion failure paradigm and weak consciousness—Evidence for the access/phenomenal distinction?Elizabeth Irvine - 2009 - Consciousness and Cognition 18 (2):551-560.
    Block [Block, N. . Two neural correlates of consciousness. Trends in Cognitive Science, 9, 46–52] and Snodgrass claim that a signal detection theory analysis of qualitative difference paradigms, in particular the exclusion failure paradigm, reveals cases of phenomenal consciousness without access consciousness. This claim is unwarranted on several grounds. First, partial cognitive access rather than a total lack of cognitive access can account for exclusion failure results. Second, Snodgrass’s Objective Threshold/Strategic model of perception relies on a problematic ‘enable’ approach to (...)
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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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  • (1 other version)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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  • Assumptions of subjective measures of unconscious mental states: Higher order thoughts and bias.Zoltán Dienes - 2004 - Journal of Consciousness Studies 11 (9):25-45.
    This paper considers two subjective measures of the existence of unconscious mental states - the guessing criterion, and the zero correlation criterion - and considers the assumptions underlying their application in experimental paradigms. Using higher order thought theory the impact of different types of biases on the zero correlation and guessing criteria are considered. It is argued that subjective measures of consciousness can be biased in various specified ways, some of which involve the relation between first order states and second (...)
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  • Exclusion failure does not demonstrate unconscious perception II: Evidence from a forced-choice exclusion task.Gary D. Fisk & Steven J. Haase - 2006 - Vision Research 46 (25):4244-4251.
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  • Unconscious perception: A model-based approach to method and evidence.Michael Snodgrass, Edward Bernat & Howard Shevrin - 2004 - Perception and Psychophysics 66 (5):846-867.
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  • Conscious and unconscious processes: The effects of motivation.Troy A. W. Visser & Philip M. Merikle - 1999 - Consciousness and Cognition 8 (1):94-113.
    The process-dissociation procedure has been used in a variety of experimental contexts to assess the contributions of conscious and unconscious processes to task performance. To evaluate whether motivation affects estimates of conscious and unconscious processes, participants were given incentives to follow inclusion and exclusion instructions in a perception task and a memory task. Relative to a control condition in which no performance incentives were given, the results for the perception task indicated that incentives increased the participants' ability to exclude previously (...)
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  • Access for what? Reflective consciousness.Michael Snodgrass & Scott A. Lepisto - 2007 - Behavioral and Brain Sciences 30 (5-6):525-526.
    Can phenomenality without access occur? We suggest that the crucial issue is not to show phenomenality that cannot be accessed, but whether phenomenality sometimes simply is not accessed. Considering this question leads to positing a distinct, second form of consciousness: Reflective consciousness. The most important form of access is then from phenomenal (first-order) to reflective (second-order) consciousness.
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  • Unconscious inhibition and facilitation at the objective detection threshold: Replicable and qualitatively different unconscious perceptual.Michael Snodgrass & Howard Shevrin - 2006 - Cognition 101 (1):43-79.
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