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50Emergence or Reduction?—Essays on the Prospects of Nonreductive PhysicalismPhilosophy and Phenomenological Research 55 (3): 701. 1995.This book collects twelve original articles, arranged in three sections, plus an introduction.
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47Die physiologischen Bedingungen des BewußtseinsIn Hans Lenk & Hans Poser (eds.), Neue Realitäten. Herausforderung der Philosophie: Xvi. Deutscher Kongreß Für Philosophie Berlin 20.–24. September 1993, De Gruyter. pp. 222-235. 1995.
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11Qualia and Brain ProcessesIn Ansgar Beckermann, Hans Flohr & Jaegwon Kim (eds.), Emergence or Reduction?: Essays on the Prospects of Nonreductive Physicalism, W. De Gruyter. pp. 220-238. 1992.
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Conference on Neural Correlates of Consciousness: Empirical and Conceptual QuestionsConsciousness and Cognition 7 108. 1998.
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337Emergence or Reduction?: Essays on the Prospects of Nonreductive Physicalism (edited book)W. de Gruyter. 1992.Introduction — Reductive and Nonreductive Physicalism A Short Survey of Six Decades of Philosophical Discussion Including an Attempt to Formulate a Version ...
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An information-processing theory of anesthesiaNeuropsychologia 33 1169-80. 1995.A theory of anaesthesia is presented. It consists of four hypotheses: (1) The occurrence of states of consciousness causally depends on the formation of transient higher-order, self-referential mental representations. The occurrence of such states is identical with the appearance of conscious phenomena. Loss of consciousness will occur, if and only if the brain's representational activity falls below a critical threshold. (2) Mental representations are instantiated by neural cell assemblies. (3)…Read more
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137Qualia and brain processesIn Ansgar Beckermann, Hans Flohr & Jaegwon Kim (eds.), Emergence or Reduction? Prospects for Nonreductive Physicalism, De Gruyter. 1992.
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Hirn als Subjekt? Grenzfragen der neurobiologischen Hirnforschung (III)Deutsche Zeitschrift für Philosophie 53 (5). 2005.
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358Brain processes and phenomenal consciousness: A new and specific hypothesisTheory and Psychology 1 245-62. 1990.A hypothesis on the physiological conditions for the occurrence of phenomenal states is presented. It is suggested that the presence of phenomenal states depends on the rate at which neural assemblies are formed. Unconsciousness and various disturbances of phenomenal consciousness occur if the assembly formation rate is below a certain threshold level; if this level is surpassed, phenomenal states necessarily result. A critical production rate of neural assemblies is the necessary and sufficient…Read more
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215Sensations and brain processesBehavioral Brain Research 71 157-61. 1995.A hypothesis on the physiological conditions of consciousness is presented. It is assumed that the occurrence of states of consciousness causally depends on the formation of complex representational structures. Cortical neural networks that exhibit a high representational activity develop higher-order, self-referential representations as a result of self-organizing processes. The occurrence of such states is identical with the appearance of states of consciousness. The underlying physiological p…Read more
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NMDA-receptor-mediated computational processes and phenomenal consciousnessIn Thomas Metzinger (ed.), Neural Correlates of Consciousness, Mit Press. pp. 245-258. 2000.
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6Die physiologischen Grundlagen des BewußtseinsIn Elbert & Birbaumer (eds.), Enzyklopädie der Psychologie,Serie1,Bd.6 : Biologische Grundlagen der Psychologie, Hogrefe. pp. 35-86. 2002.
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64On the mechanism of action of anesthetic agentsIn Stuart R. Hameroff, Alfred W. Kaszniak & A. C. Scott (eds.), Toward a Science of Consciousness II, Mit Press. pp. 2--459. 1998.
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80UnconsciousnessBest Practice and Research Clinical Anaesthesiology 20 (1): 11-22. 2006.This paper reviews a theory on the physiological conditions of consciousness. The theory consists of four hypotheses: (1) The occurrence of states of consciousness depends on the formation of higher-order representations that represent the internal state of the brain itself. (2) Higher-order representations are instantiated by the spatio-temporal activity pattern of large-scale neuronal assemblies. (3) The N-methyl-D-aspartate (NMDA) synapse plays a crucial role in the generation of conscious st…Read more