Two Neural Correlates of Consciousness (expanded version)Block, Ned (2005) Two Neural Correlates of Consciousness (expanded version). Trends in Cognitive Sciences, 9 (2). pp. 46-52. Full text available as:
Official URL: http://www.trends.com/tics/ Alternative URL: http://www.nyu.edu/gsas/dept/philo/faculty/block/papers/final_revised_proof.pdf AbstractNeuroscientists 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 signaldetection theory approaches. Recent findings in cognitive neuroscience provide an empirical case for two different NCCs.
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