Prof. Mark Solms, PhD, University of Cape Town

will give a lecture in our forum:

The cortical fallacy and the hard problem of consciousness

Time: September 25, 2024  16.30-18.30

Venue: Sophus Lies Auditorium, Blindern Campus, University of Oslo

Professor Mark Solms is Director of Neuropsychology at the Neuroscience Institute of the University of Cape Town. He is also Honorary Lecturer in Neurosurgery at the St Bartholomew’s & Royal London Hospital School of Medicine and an Honorary Fellow of the American College of Psychiatrists. He is a member of the British Psychoanalytical Society and the American and South African Psychoanalytic Associations. He has published 350 scientific papers, and eight books, the latest being The Hidden Spring (Norton, 2021).

On 26th of September 2024, Prof. Björn Merker will hold a public lecture in our forum:

Cracks in the cortical consensus: Recent empirical findings that bear on consciousness theory

Time: September 26, 2024  16.30-18.30

Venue: Sophus Lies Auditorium, Blindern Campus, University of Oslo

An overwhelming consensus regarding the locus of consciousness assigns it to cortical mechanisms. Besides the intuitive appeal of assigning what is presumed to be a sophisticated function to an organ that is exceptionally developed in ourselves, a number of empirical findings have been taken to support this identification. One is the claim that severing the commissures that connect the two sides of the cerebral cortex leaves the patient with two separate and independent consciousnesses. Another is the claim that loss of the primary visual cortex leaves the patient able to respond to stimuli in the affected part of the visual field but bereft of all phenomenal visual experience in the same (so called blind sight). A third is empirical evidence that activation of two parts of cortical circuitry, the so called feed-forward and feed-back components of cortical counter-current organization, must converge and interact for a given stimulus event to be consciously perceived. There are, however, rather recently accrued empirical findings on each of these issues that compromise their support for a cortical locus of consciousness. I will review these challenges to the cortical consensus, and relate them to more general characteristics of cortical organization that militate against its filling the role of “organ of consciousness”.

Björn Merker is a neuroscientist in retirement. He has longstanding interests in systems neuroscience, evolutionary biology, and brain mechanisms of consciousness. He obtained his doctorate from the Department of Psychology and Brain Science at M.I.T. in 1980 for work on the mammalian superior colliculus. Since then he has worked on oculomotor physiology in cats, on the primary visual cortex in macaques, on song development and mirror self-recognition in gibbons, and on the evolutionary and developmental background to human music and language. In retirement he has continued theoretical work related to both the latter topics as well as consciousness.

On May 15th, 2024, Dr. Jaan Aru, Institute of Computer Science, University of Tartu.

will give a lecture in our forum:

Science of consciousness in the age of artificial intelligence

Time: May 15th, 2024,  16.00 – 17.45

Venue: Sophus Lies auditorium, Moltke Moes vei 35,  Blindern Campus, University of Oslo

A recording of a live stream of the event will be posted here once processed.

Jaan Aru is an associate professor at the Institute of Computer Science, University of Tartu. He did his PhD in the Max Planck Institute of Brain Research and obtained a Marie-Curie fellowship to do a post-doc with Matthew Larkum in Berlin. He has written three books in Estonian and has twice received the national science communication prize in Estonia for his efforts in popularizing science. In 2019, he received the Young Scientist Prize from the President of Estonia.

Advances in artificial intelligence (AI) and the current debate on conscious machines provide a golden opportunity to reassess fundamental assumptions about consciousness. For instance, the rise of the capabilities of AI systems has led to the question of whether these systems might soon be conscious. However, that debate has revealed that we might have underestimated the complexity neurobiological mechanisms underlying consciousness. in this talk, Aru will mainly focus on two issues: First, the architectures of present-day AI algorithms are missing key features of the thalamocortical system that have been linked to conscious awareness in mammals. Second, the evolutionary and developmental trajectories that led to the emergence of living conscious organisms arguably have no parallels in artificial systems as envisioned today. The existence of living organisms depends on their actions and their survival is intricately linked to multi-level cellular, inter-cellular, and organismal processes culminating in agency and consciousness.

Recent articles by Jaan Aru

Aru, J., Drüke, M., Pikamäe, J., & Larkum, M. E. (2023). Mental navigation and the neural mechanisms of insight. Trends in Neurosciences. 

Aru, J., & Rozgonjuk, D. (2022). The effect of smartphone use on mental effort, learning, and creativity. Trends in Cognitive Sciences. 

Gidon, A., Aru, J., & Larkum, M. E. (2022). Does brain activity cause consciousness? A thought experiment. Plos Biology, 20(6), e3001651. 

Aru, J., Labash, A., Corcoll, O., & Vicente, R. (2023). Mind the gap: Challenges of deep learning approaches to Theory of Mind. Artificial Intelligence Review. 

Tulver, K., Kaup, K. K., Laukkonen, R., & Aru, J. (2023). Restructuring insight: An integrative review of insight in problem-solving, meditation, psychotherapy, delusions and psychedelics. Consciousness and Cognition. 

Aru, J., Suzuki, M., & Larkum, M. E. (2020). Cellular Mechanisms of Conscious Processing. Trends in Cognitive Sciences.

here is a test embedding for “feilsøking”

NOTE: this lecture by Lucia Melloni has been postponed until further notice and will not be held on 1st of september 2024. 

About the event:

Prof. Lucia Melloni, PhD, Max Planck Institute for Empirical Aesthetics, Frankfurt

will give a lecture in our forum:

An adversarial collaboration to critically evaluate theories of consciousness

Time: September, 2024 (date and time to be decided)

Venue: Auditorium 1, Sverdrups hus (the main library), Blindern Campus, University of Oslo

Dr. Lucia Melloni is a leader of the ongoing, large-scale, international adversarial collaboration to critically evaluate leading theories of consciousness, involving 11 partners, funded by the Templeton World Charity Foundation.

The first experimental results were announced in June 2013 at the 26th meeting of the Association for the Scientific Study of Consciousness (ASSC) in New York City.

Dr. Melloni has been investigating the neural underpinnings of perception (vision), how and why we experience (consciousness) and how those experiences get imprinted in our brain (learning and memory). She has used multiple methods, ranging from invasive and non-invasive electrophysiological and neuroimaging, behavioral techniques, and online surveys. The most recent one focus is on laminar electrophysiology in humans. Finally, she is committed to team-science and open science practices and she is leading a large-scale adversarial collaboration, involving 11 international collaborators to learn more about the footprints of consciousness.

Some articles by Lucia Melloni

Melloni L, Mudrik L, Pitts M, Bentz K, Ferrante O, Gorska U, Hirschhorn R, Khalaf A, Kozma C, Lepauvre A, Ling L, Mazumder D, Richter D, Zhou H, Blumenfeld H, Boly M, Chalmers D, Devore S, Fallon F, de Lange FP, Jensen O, Kreiman G, Luo H, Panagiotaropoulos TI, Dehaene S, Koch C, Tononi G. (2023). An adversarial collaboration protocol for testing contrasting predictions of global neuronal workspace and integrated information theory. PLoS ONE

Alasfour A, Gabriel P, Jiang X, Shamie I, Melloni L, Thesen T, Dugan P, Friedman D, Doyle W, Devinsky O, Gonda D, Sattar S, Wang S, Halgren E, Gilja V (2022). Spatiotemporal Dynamics of Human High Gamma Discriminate Naturalistic Behavioral States. PLOS COMPUT. BIOL. 18(8): e1010401. doi.org/10.1371/journal.pcbi.1010401

Xu C, Gao J, Gao J, He F, Yu J, Ling Y, Li H, Li J, Melloni L, Luo B, Ding N (2022). Statistical learning in patients in the minimally conscious state. CEREB. CORTEX. bhac222, https://doi.org/10.1093/cercor/bhac222. medRxiv 2022.01.04.22268656; doi: doi.org/10.1101/2022.01.04.22268656

Yaron I, Melloni L, Pitts M, Mudrik L (2022). The Consciousness Theories Studies (ConTraSt) database: analyzing and comparing empirical studies of consciousness theories. NAT. HUM. BEHAV. Feb 21. doi: 10.1038/s41562-021-01284-5. Epub ahead of print. PMID: 35190711.

Pu Y, Kong X, Ranganath C, Melloni L (2022). Event boundaries shape temporal organization of memory by resetting temporal context. NAT COMMUN Feb 2;13(1):622. doi: 10.1038/s41467-022-28216-9. PMID: 35110527; PMCID: PMC8810807.

Lepauvre A & Melloni L (2021). The search for the Neuronal Correlates of Consciousness: Progress and Challenges. PHIMISCI, 2. https://doi.org/10.33735/phimisci.2021.87

Vilas M, Auksztulewicz R, Melloni L (2021). Active Inference as a Computational Framework for Consciousness. REV.PHIL.PSYCH. https://doi.org/10.1007/s13164-021-00579-w

Melloni L, Mudrik L, Pitts M, Koch C (2021). Making the hard problem of consciousness easier. SCIENCE, 372 (6545), 911-912, doi: 10.1126/science.abj3259

On April 15, 2024, Dr. Claire Sergent, CNRS, University of Paris,

will give a lecture in our forum:

Investigating the neural mechanisms of conscious processing in humans

Time: April 15, 2024,  15.00 – 16.30

Venue: Domus Bibliotheca, University of Oslo, Karl Johans gate 47

Abstract: When we contrast how the brain processes the same external stimulation according to whether we report it as perceived or not, we observe a whole series of neural events that correlate with this conscious report. One of the challenges we are now facing in consciousness research is to identify, among these correlates, what corresponds to core mechanisms of conscious access, and distinguish them from upstream events, such as early sensory processing, and from downstream events, such as explicit decision-making and other task-related processes. Here I will present the results of two experimental approaches that we are currently developing in my team to perform this dissection, and I will discuss their potential for identifying neural signatures of conscious access even in the absence of explicit report from the individual. These new developments call for an extension of current models such as the global workspace model, to explain conscious experience beyond task-related processes. They might also open possibilities for a better evaluation of consciousness in non-communicating patients.

Dr. Claire Sergent is an outstanding consciousness researcher with more than 20 years of experience from the forefront of consciousness research. She worked on the early development of the Global Neuronal Workspace Theory of consciousness research (GNWT), together with the pioneers Jean-Pierre Changeux, Stanislas Dehaene and Lionel Naccache. With her group in Paris, she recently published a study that significantly changed the implications of the GNW theory  (“Bifurcation in brain dynamics reveals a signature of conscious processing independent of report” Nature Communications, 2021)

Recent articles by Claire Sergent

Derrien D, Garric C, Sergent C, Chokron S. The nature of blindsight: implications for current theories of consciousness. Neurosci Conscious, 2022, 2022 (1), pp.niab043.

Sergent C, Corazzol M, Labouret G, Stockart F, Wexler M, King JR, Meyniel F, Pressnitzer D. Bifurcation in brain dynamics reveals a signature of conscious processing independent of report. Nat Commun, 2021, 12 (1), pp.1149.

Garric C, Sebaa A, Caetta F, Perez C, Savatovsky J, Sergent C, Chokron S. Dissociation between objective and subjective perceptual experiences in a population of hemianopic patients: A new form of blindsight?. Cortex, 2019, 117, pp.299-310.

Jacquet PO, Wyart V, Desantis A, Hsu YF, Granjon L, Sergent C, Waszak F. Human susceptibility to social influence and its neural correlates are related to perceived vulnerability to extrinsic morbidity risks. Sci Rep, 2018, 8 (1), pp.13347.

Sergent C, Faugeras, Rohaut, Perrin, Valente, Tallon-Braudry, Cohen, Naccache L. Multidimensional cognitive evaluation of patients with disorders of consciousness using EEG: a proof of concept study. Neuroimage, 2016. (PDF)

Some earlier articles by Claire Sergent

Sergent C, Dehaene S. Neural processes underlying conscious perception: experimental findings and a global neuronal workspace framework. J Physiol Paris, 2005, 98 (4-6), pp.374-84.

Sergent C, Dehaene S. Is consciousness a gradual phenomenon? Evidence for an all-or-none bifurcation during the attentional blink. Psychol Sci, 2004, 15 (11), pp.720-8.

Dehaene S, Sergent C, Changeux JP. A neuronal network model linking subjective reports and objective physiological data during conscious perception. Proc Natl Acad Sci U S A, 2003, 100 (14), pp.8520-5.

Dr Sergent Bifurcation in brain dynamics reveals a signature of conscious processing independent of report

Integrative Neuroscience and Cognition Center – CNRS UMR 8002
CNRS, Université de Paris
45 Rue des Saints Pères
75270 Paris Cedex 06
France