whatsoever can be conscious: the so-called "hard problem of consciousness". A. C. Elitzur has argued, however, "While this hypothesis does not address the 'hard problem', namely, the very nature of consciousness, it constrains any theory that attempts to do so and provides important insights into the relation between consciousness and cognition.", as much as any consciousness theory is constrained by the natural brain perception limitations. New work by Richard Robinson shows promise in establishing the brain functions involved in this model and may help shed light on how we understand signs or symbols and reference these to our semiotic registers. See also Artificial consciousness Cognitive map Cognitive model Conceptual space Image schema LIDA (cognitive architecture) Multiple drafts model of consciousness Neural correlates of consciousness Sparse distributed memory References Baars, Bernard J. (1988), A Cognitive Theory of Consciousness (Cambridge, MA: Cambridge University Press) Baars, Bernard J.(1997), In the Theater of Consciousness (New York, NY: Oxford University Press) Baars, Bernard J. (2002) The conscious access hypothesis: Origins and recent evidence. Trends in Cognitive Sciences, 6 (1), 47-52. Blackmore, Susan (2002). There is no stream of consciousness. Journal of Consciousness Studies 9. 5-6 Blackmore, Susan (2004). Why Global Workspace Theory cannot explain consciousness(2004) Presentation. Blackmore, Susan (2005). Conversations on consciousness (Oxford : Oxford University Press) Damasio, A.R. (1989). Time-locked multiregional retroactivation: A systems-level proposal for the neural substrates of recall and recognition. Cognition 33. 1-2:25-62. Dehaene, S., Sergent, C. and Changeux, J.-P. (2003). A neuronal network model linking subjective reports and objective physiological data during conscious perception. Proc. National Academy of Science (USA) 100. 14: 8520-8525. Metzinger, T. (ed) (2000). Neural Correlates of Consciousness: Empirical and Conceptual Questions. MIT Press. Shanahan, M.P. (2006). A cognitive architecture that combines internal simulation with a global workspace. Consciousness and Cognition 15: 433-449. Bao, C., Fountas, Z., Olugbade, T. and Bianchi-Berthouze, N. (2020). Multimodal Data Fusion based on the Global Workspace Theory. arXiv preprint arXiv:2001.09485. Further reading External links Continuous updates on Global Workspace Theory by Baars and colleagues and published articles for download Synopsis by Baars and Katherine McGovern Review of Bernard Baars' A Cognitive Theory of Consciousness Robinson R (2009) Exploring the "Global Workspace" of Consciousness Consciousness studies Psychological theories