Barely conscious(ness)

You may not have been conscious of it, but big arguments have been swirling around the issue of consciousness (for the example that prompted this post see here). Science had, then didn’t have and now again has big problems with consciousness. You know an argument is in trouble when its starting point is the denial of probably the one thing we are all aware of (at least when we are awake and healthy) – our consciousness. Descartes was so sure of his that he based his philosophy on it (the famous “I think [doubt] therefore I am”). But you might be surprised to learn that for a good chunk of the 20^th century in science, a good chunk of scientists were convinced that either it did it not exist or if it did, it didn’t “do” anything. They were the behaviourists, represented by B. F. Skinner (he of the infamous box). Consciousness was “nothing but” (ie reducible to) behaviour (by which they primarily meant movement) or propensities to behave. Don’t feel any need to understand any this (a notion which clearly assumes some degree of consciousness on your part!), because such views didn’t last long into the second half of the twentieth century. Behaviourist schemes clearly didn’t work, and the starting point was in any case fatally flawed.

But historically there had been an ongoing struggle to accommodate subjective, first-person, mental states (consciousness) within a thoroughly empirical (scientific) approach to our understanding of ourselves. Those devoted to the nineteenth century theory/myth of the conflict between science (good) and theology (bad), didn’t want to provide any space for the immaterial (whether soul or mind – for current purposes assume that both words name the same thing). But not having a satisfying material explanation for what we are all most aware of was a bit of a problem. If claiming that things like mental states did not exist was not viable, what to do? Well, assuming there was a thoroughly material explanation for our private interior self (potentially another fatally flawed assumption), given the powerful new tools of neuroscience such phenomena had to be explicable in terms of what was going on in the brain (that clearly material lump of stuff inside our heads). So there arose an empirical subdiscipline within neuroscience, that of “consciousness studies”.

Writing 10 years ago in the inaugural editorial of the journal “Neuroscience of Consciousness” the editors credited a 1990 paper by Crick and Koch as marking “the rebirth of consciousness science as a serious exercise”(Seth et al. 2015; Crick and Koch 1990). The publication of the new journal reflected “the maturity of this rigorous and empirically grounded approach to the science of subjective experience”. While they themselves made no claim that this was necessarily the only available approach to subjective experience, such a claim had already appeared in Crick’s book, published the previous year (Crick 1994). Crick and Koch claimed in their paper that “Everyone has a rough idea of what is meant by consciousness” and avoided a “precise definition”. This, along with other knotty issues, was left to one side “otherwise much time can be frittered away in fruitless argument”, implicitly a criticism of what had gone before. Philosophy (and certainly theology) had had its day. It was now over to science to explain the previously inexplicable, even consciousness (see Chemero and Silberstein 2008). This particular body swerve would prove to be costly.

Now, thirty five years on from the “rebirth of consciousness science”, where stands the project that had reached “maturity” ten years ago? Franken and colleagues recently published the results of a survey of consciousness researchers who attended two consecutive annual meetings of the Association of the Scientific Study of Consciousness (established in 1994 and later the sponsor of Neuroscience of Consciousness) to investigate “the theoretical and methodological foundations, common assumptions, and the current state of the field of consciousness research” (Francken et al. 2022). Among the issues they found “a lack of consensus regarding the definition and most promising theory of consciousness” and “that many views and opinions currently coexist in the consciousness community. Moreover, individual respondents appear to hold views that are not always completely consistent from a theoretical point of view”. Lest it be felt that this is a rather slim basis on which to form a view as to the current state of the field, Seth and Bayne (2022) reported in a recent extensive review that “in the case of consciousness, it is unclear how current theories relate to each other, or whether they can be empirically distinguished”. They recommended “the iterative development, testing and comparison of theories of consciousness” . Franken et al (2022) used ten different theoretical constructs in their survey, Seth and Bayne (2022) identified a “selection” of twenty-two “theories of consciousness” (see their Table 1) which they grouped into four broad categories and Kuhn (limiting himself to “materialism” theories) identified fourteen neurobiological theories, to which he added lists of philosophical (N=12), electromagnetic (7) and computational/informational (4) theories (Kuhn 2024). Confused? Well, it turns out the field of consciousness studies is.

An attempt to follow Seth and Bayne’s advice, using a “large-scale adversarial collaboration” to experimentally compare predictions made by two of the major competing theories of consciousness (“global neuronal workspace theory”, GNWT vs “integrated informational theory”, IIT) recently reported results in Nature (Ferrante et al. 2025; see also the accompanying Nature Editorial). The evidence that emerged partially supported and partially challenged both theories. However, the aftermath is more revealing. In response to the preprint and media coverage of the paper (the actual Nature paper was submitted for publication in June 2023, accepted for publication in March 2025 and published in April 2025) a long list of researchers (including recognised leaders in neuroscience) put their names to an open letter on the PsyArXiv preprint server condemning the exercise as flawed, calling IIT “pseudoscience” and objecting to its characterisation as a leading candidate theory for explaining consciousness at all (Fleming, et al. 2023). Proponents of GNWT also called into question the discussion of the results and the conclusions drawn (Naccache et al. 2025). All of this suggests that what flowed from Crick and Koch’s avoidance of a definition of consciousness was basic conceptual confusion. But many had claimed that this was the problem at the time; this was precisely the charge made against the field by the philosopher Peter Hacker not long after its “rebirth” (Bennett and Hacker 2003, 239–44; see also Hacker 2012). Nobody is sure what it is they’re talking about, and even those who do claim to know what they mean usually agree that the have no way of measuring the “it” they are clear about. So the next time you read a headline about “understanding” consciousness, just be aware – we don’t.

It’s not just the state of the specific scientific sub-field of consciousness research that appears to have problems and confusions. Concerns have emerged from within the wider materialist camp. Some more history is in order. The philosopher Thomas Nagel is perhaps best known for his classic paper “What is it like to be a bat?”; with regard to the problem of consciousness, the philosopher Patricia Churchland called this paper a “watershed articulation” (Nagel 1974; Churchland 1996). The problem which Nagel drew attention to was the one left by the demise of the behaviourists; the “subjective character of experience” (the what-is-it-like-to-be-ness) was not captured “by any of the familiar, recently devised reductive analyses of the mental”. Materialist accounts of thinking people left something vital out of the account. So he suggested that what was needed were new studies of the subjective and the mental partially answered in subsequent development of consciousness studies described above.

But that was then, what about now? Advances in neuroscience have definitely occurred. With all that  we know now (all those lovely coloured brain scans, snapshots of what goes on while people think), surely a thoroughly materialist account of us, which leaves the concept of the immaterial (be it mind or soul) lying redundant in its wake, is possible? Or at least given such progress, we should be in a position to see clearly how in principal it might be possible. Writing in 2012, Nagel was, if anything, more concerned than he was in the 70’s. Consciousness remained one of the major sticking points causing his concern: “The fundamental elements and laws of physics and chemistry have been inferred to explain the behaviours of the inanimate world. Something more is needed to explain how there can be conscious, thinking creatures..” (Nagel 2012, 20). And yet his concerns went beyond the existence of (as yet unexplained) consciousness to the wider materialist project: “The inadequacies of the naturalistic and reductionist world picture seem to me to be real”(Nagel 2012, 22). He did not find theism (the “polar opposite” of materialism) “any more credible than materialism as a comprehensive world view”, but was having a problem trying to imagine naturalistic accounts that were able to accommodate previously excluded elements like consciousness (or purpose, belief, love and the like). He concluded by accepting as conceivable that “the truth is beyond our reach, in virtue of our intrinsic cognitive limitations” (Nagel 2012, 128). The philosopher Mary Midgley took Nagel’s argument (along with those made by others) to provide evidence that the “credo of materialism” was “beginning to fray around the edges” (Midgley 2014, 14). Things haven’t improved since.

Does any of this matter? On one level, not really. You are still you, even although there is no scientific explanation for you in material terms. At least no one is now claiming that because of the lack of that explanation “you” don’t exist. Fundamentally, of course, I would be argue that science with its third-party, observational statements, which necessarily leave out of the account things like purpose, hope, love, agency and the like (ie things that really matter to us), can only ever provide a partial account of what we are as “persons” (something most scientist are clear about – usually). As Midgley and many others have argued the argument that only science defines or explains important stuff, including what we are as persons, is a monstrous overreach. Such claims are still occasionally made, but this view too is “fraying”.

But there are of course other sources of data, other (complimentary) ways of reasoning, other views of who and what we are as persons (something I touched on previously). If the materialist program is faltering, these need to be heard again. Wonder what (the decidedly immaterial) God thinks?

[PS: I don't normally provide references to the literature in these posts, but as I happened to have them to hand, I thought it would be churlish not to....]

Bennett, Maxwell R, and Peter Michael Stephan Hacker. 2003. Philosophical Foundations of Neuroscience. Blackwell.

Chemero, Anthony, and Michael Silberstein. 2008. “After the Philosophy of Mind: Replacing Scholasticism with Science*.” Philosophy of Science 75 (1): 1–27. JSTOR. https://doi.org/10.1086/587820.

Churchland, Patricia S. 1996. “The Hornswoggle Problem.” Journal of Consciousness Studies 3 (5–6): 402–8.

Crick, F. H. C. 1994. The Astonishing Hypothesis: The Scientific Search for the Soul. Macmillan.

Crick, Francis, and Christof Koch. 1990. “Towards a Neurobiological Theory of Consciousness.” 2 (263–275): 203.

Ferrante, Oscar, Urszula Gorska-Klimowska, Simon Henin, et al. 2025. “Adversarial Testing of Global Neuronal Workspace and Integrated Information Theories of Consciousness.” Nature 642 (8066): 133–42. https://doi.org/10.1038/s41586-025-08888-1.

Fleming, S.M, Chris D Frith, M Goodale, et al. 2023. “The Integrated Information Theory of Consciousness as Pseudoscience.” Preprint, PsyArXiv. https://doi.org/10.31234/osf.io/zsr78.

Francken, Jolien C, Lola Beerendonk, Dylan Molenaar, et al. 2022. “An Academic Survey on Theoretical Foundations, Common Assumptions and the Current State of Consciousness Science.” Neuroscience of Consciousness 2022 (1): niac011. https://doi.org/10.1093/nc/niac011.

Hacker, P. M. S. 2012. “The Sad and Sorry History of Consciousness: Being, among Other Things, a Challenge to the ‘Consciousness-Studies Community.’” Royal Institute of Philosophy Supplements 70: 149–68.

Kuhn, Robert Lawrence. 2024. “A Landscape of Consciousness: Toward a Taxonomy of Explanations and Implications.” Progress in Biophysics and Molecular Biology 190 (August): 28–169. https://doi.org/10.1016/j.pbiomolbio.2023.12.003.

Midgley, M. 2014. Are You an Illusion? Heretics (Durham, England). Acumen. https://books.google.co.uk/books?id=6hHtnQEACAAJ.

Naccache, Lionel, Claire Sergent, Stanislas Dehaene, Xia-Jing Wang, Michele Farisco, and Jean-Pierre Changeux. 2025. “GNW Theoretical Framework and the ‘Adversarial Testing of Global Neuronal Workspace and Integrated Information Theories of Consciousness.’” Neuroscience of Consciousness 2025 (1): niaf037. https://doi.org/10.1093/nc/niaf037.

Nagel, Thomas. 1974. “What Is It Like to Be a Bat?” The Philosophical Review 83: 435–50.

Nagel, Thomas. 2012. Mind and Cosmos: Why the Materialist Neo-Darwinian Conception of Nature Is Almost Certainly False. Oxford University Press.

Seth, Anil K., and Tim Bayne. 2022. “Theories of Consciousness.” Nature Reviews Neuroscience 23 (7): 439–52. https://doi.org/10.1038/s41583-022-00587-4.

Seth, Anil K., Biyu J. He, and Jakob Hohwy. 2015. “Editorial.” Neuroscience of Consciousness 2015 (1): niv001. https://doi.org/10.1093/nc/niv001