Behavioral and Brain Sciences
March 23, 2022
Giulio Tononi, Melanie Boly, Matteo Grasso et al.
The target article misrepresents the foundations of integrated information theory (IIT) and ignores many essential publications. It, thus, falls to this lead commentary to outline the axioms and postulates of IIT and correct major misconceptions. The commentary also explains why IIT starts from phenomenology and why it predicts that only select physical substrates can support consciousness....
Frontiers in Human Neuroscience
2022
André Sevenius Nilsen, Bjørn E. Juel, Benjamin Thürer et al.
36 citations
In the field of consciousness science, there is a tradition to categorize certain states such as slow-wave non-REM sleep and deep general anesthesia as "unconscious". While this categorization seems reasonable at first glance, careful investigations have revealed that it is not so simple. Given that (1) behavioral signs of (un-)consciousness can be unreliable, (2) subjective reports of...
Neuroscience of Consciousness
2022
A. Arena, Bjørn E. Juel, R. Comolatti et al.
Abstract It remains unclear how specific cortical regions contribute to the brain’s overall capacity for consciousness. Clarifying this could help distinguish between theories of consciousness. Here, we investigate the association between markers of regionally specific (de)activation and the brain’s overall capacity for consciousness. We recorded electroencephalographic responses to cortical...
Journal of Psychedelic Studies
January 15, 2021
André S. Nilsen, Bjørn E. Juel, Nadine Farnes et al.
While psychedelic agents are known to have powerful, but largely unexplained, effects on contents of consciousness, there is an increasing interest in the potential clinical usefulness of such drugs for therapy, and legalization is discussed in some countries. Thus, it is relevant to study the effects of psychedelic compounds not only on experience, but also on behavioral performance.Seven...
PLoS One
November 23, 2020
Nadine Farnes, Bjørn E. Juel, André S. Nilsen et al.
81 citations
How and to what extent electrical brain activity reflects pharmacologically altered states and contents of consciousness, is not well understood. Therefore, we investigated whether measures of evoked and spontaneous electroencephalographic (EEG) signal diversity are altered by sub-anaesthetic levels of ketamine compared to normal wakefulness, and how these measures relate to subjective...
bioRxiv Preprint Server
March 22, 2019
André S. Nilsen, Bjørn E. Juel, Johan F. Storm
preprint
Background Developing and testing methods for reliably assessing states of consciousness in humans is important for both basic research and clinical purposes. Several potential measures, partly grounded in theoretical developments, have been proposed, and some of them seem to reliably distinguish between conscious and unconscious brain states. However, the degrees to which these measures may...
André S. Nilsen, Bjørn E. Juel, Benjamin Thürer et al.
preprint
Knowledge of which brain properties are required for consciousness is essential for improving clinical diagnostics and therapy as well as for investigating consciousness per se. The search for such properties has yielded many methods and measures for distinguishing conscious and apparently unconscious brain states. Here, we present a systematic literature review of 255 electroencephalography...