Chris Timmermann
christimmermann.bsky.social
Chris Timmermann
@christimmermann.bsky.social
Research Fellow. Head of DMT Research Group. Centre for Psychedelic Research, Imperial College London. Neuroscience | Phenomenology | Psychedelics | Meditation
Publications: https://scholar.google.com/citations?user=ezYk7h0AAAAJ&hl=
Reposted by Chris Timmermann
NEW from me:

Political hostility, high visa fees and (in the case of the UK) stagnant incomes are making the UK and US less attractive destinations for top international talent.

That steep decline in the appeal of moving to the US after 2016 is 👀
October 31, 2025 at 2:32 PM
Reposted by Chris Timmermann
NEW TEN-PART AUDIO SERIES about #PSYCHEDELICS
Out now on BBC Sounds - and other podcast spaces.

Co-written & presented by the beautifully curious @timhayward.bsky.social
Production, sound design and mix by me.

It's been a fascinating and challenging process to get here...

I do hope you'll listen.
BBC Radio 4 - Understand, The Trip
Tim Hayward looks at the science, culture, history - and future - of psychedelics.
www.bbc.co.uk
August 21, 2025 at 4:09 PM
Reposted by Chris Timmermann
With immense pleasure, here is our #TICS opinion paper on "mind blanking"!
@cp-trendscognsci.bsky.social

**Where is my mind?**
A neurocognitive investigation of mind blanking
www.sciencedirect.com/science/arti...

With Jenny Windt, @antoinelutz.bsky.social and @ademertzi.bsky.social
ScienceDirect.com | Science, health and medical journals, full text articles and books.
authors.elsevier.com
April 24, 2025 at 5:17 PM
Our new paper - the first peer-reviewed brain and phenomenological examination of 5-MeO-DMT is out in Neuro of Consciousness.

TLDR: We tested whether ‘the mount Everest’ of psychedelics could induce a complete state of consciousness deconstruction while preserving awareness. 1/n

#neuroskyence
April 23, 2025 at 2:06 PM
Reposted by Chris Timmermann
Age-related differences in 1/f aperiodic EEG/MEG signals can be driven by cardiac rather than brain activity 👇

#interoception 🧠🫀 #neuroskyence

elifesciences.org/reviewed-pre...
Age-related changes in “cortical” 1/f dynamics are linked to cardiac activity
elifesciences.org
April 1, 2025 at 8:10 PM
Check this out by Jeremy Skipper at @thelablab.bsky.social iai.tv/articles/lan...
Language creates an altered state of consciousness | Jeremy I Skipper
iai.tv
March 21, 2025 at 12:30 PM
Reposted by Chris Timmermann
Maybe a good time to remember that mice have tiny hyperconnected brains. An estimated 97% of all possible connections between brain areas exist in mice, vs ~62% in macaques and marmosets.

No wonder everything is everywhere in mice, they have all-to-all connectivity!

doi.org/10.1093/cerc...
January 11, 2025 at 4:37 PM
Reposted by Chris Timmermann
2/ Our comment is a response to both the charge from 'IIT-concerned et al' that IIT is pseudoscientific (we disagree) www.nature.com/articles/s41... and to the response by Tononi et al www.nature.com/articles/s41...
March 10, 2025 at 10:54 AM
Congrats to Lisa Luan for a successful PhD defence leading our extended DMT studies at @imperialcollegeldn.bsky.social . Very proud to call her my first completed PhD student and in awe of how she managed to meticulously carry out some of the most extreme studies one could think of
March 10, 2025 at 1:26 PM
Benny Shanon, one of the pioneers of modern psychedelic research, has recently passed away. If you haven't done so, check out his book Antipodes of the Mind, one of the most influential and beautiful books I have read. May his contributions carry forward in our work and explorations of consciousness
February 7, 2025 at 1:26 PM
Psychedelic-mediated Reversal of General Anesthesia and Restoration of Brain Dynamics in Rat

www.biorxiv.org/content/10.1...
www.biorxiv.org
January 31, 2025 at 3:03 PM
If you have experience with psychedelics or meditation please consider participating and sharing
⭐ Do you have experience with #psychedelics 🍄 or #meditation 🪷? ⭐

🆘 Please help us understand how these practices shape the experience of emotions in our bodies.

🔬 Contribute to science by taking part in a quick, 20-min anonymous online experiment.

🖱️ Click here to participate: bit.ly/3DYMEkb
January 31, 2025 at 12:59 PM
Reposted by Chris Timmermann
Really excited about this paper out today in @natureneuro.bsky.social
If you are interested in how to characterise the role of the DMN in human cognition you really should check it out.
a 🧵
January 28, 2025 at 2:53 PM
Reposted by Chris Timmermann
Out in @natureneuro.bsky.social today 🥂

Cytoarchitecture, wiring and signal flow of the human default mode network

Combining 3D histology, 7T MRI, and connectomics to explore DMN structure-function associations

Led by Casey Paquola, @themindwanders.bsky.social & a terrific team of colleagues 🙏
The architecture of the human default mode network explored through cytoarchitecture, wiring and signal flow - Nature Neuroscience
The default mode network (DMN) is implicated in cognition and behavior. Here, the authors show that the DMN is cytoarchitecturally heterogeneous, it contains regions receptive to input from the sensory cortex and a core relatively insulated from environmental input, and it uniquely balances its output across sensory hierarchies.
www.nature.com
January 28, 2025 at 2:24 PM
Reposted by Chris Timmermann
Hi everyone, we have published a new paper showing that #psilocybin increases emotional #empathy in patients living with depression for at least two weeks after a single administration. If you are interested in #psychedelics and #social cognition, take a look here: www.nature.com/articles/s41...
Psilocybin increases emotional empathy in patients with major depression - Molecular Psychiatry
Molecular Psychiatry - Psilocybin increases emotional empathy in patients with major depression
www.nature.com
December 19, 2024 at 7:03 AM
Reposted by Chris Timmermann
Does the culture you grow up in shape the way you see the world? In a new Psych Review paper, @chazfirestone.bsky.social & I tackle this centuries-old question using the Müller-Lyer illusion as a case study. Come think through one of history's mysteries with us🧵(1/13):
January 25, 2025 at 10:05 PM
Reposted by Chris Timmermann
Is our brain infinitely flexible or constrained? Oby & colleagues cleverly uses BCIs to test what cortical activity can/can't be generated quickly. Highly recommend!
www.nature.com/articles/s41...

And you can get a tl;dr + my takes on why this is exciting here: www.nature.com/articles/s41...
Dynamical constraints on neural population activity - Nature Neuroscience
Oby, Degenhart, Grigsby and colleagues used a brain–computer interface to challenge monkeys to override their natural time courses of neural activity. They found the time courses to be highly robust, ...
www.nature.com
January 17, 2025 at 2:18 PM
Very proud to have contributed to this work with @matthewsacchet.bsky.social and his team exploring the neurophenomenology of advanced Jhana meditation. Notice the strong similarities with psychedelic states, especially in EEG findings. Stay tuned for more www.sciencedirect.com/science/arti...
Multimodal neurophenomenology of advanced concentration absorption meditation: An intensively sampled case study of Jhana
Using a combination of fMRI, EEG, and phenomenology ratings, we examined the neurophenomenology of advanced concentrative absorption meditation, namel…
www.sciencedirect.com
January 13, 2025 at 1:45 PM
Reposted by Chris Timmermann
Why inflammatory reductionism is a threat to psychiatry (and the rest of medicine) academic.oup.com/brain/advanc...

Fascinating from Tom Pollak (not on BlueSky?) - via @annaciaunica.bsky.social
Why inflammatory reductionism is a threat to psychiatry (and the rest of medicine)
A new world-view is emerging, one which attempts to explain all manner of ills as the result of inflammation or immune dysfunction. While motivated by some
academic.oup.com
January 9, 2025 at 5:38 AM
Reposted by Chris Timmermann
Our review on the theoretical status of oscillations and field potentials is out! What are their effects, and what can electrophysiology signals reveal about how the brain works?

w/ @dlevenstein.bsky.social @prokraustinator.bsky.social Bradley Voytek @rdgao.bsky.social

www.cell.com/trends/cogni...
Processes and measurements: a framework for understanding neural oscillations in field potentials
Various neuroscientific theories maintain that brain oscillations are important for neuronal computation, but opposing views claim that these macroscale dynamics are ‘exhaust fumes’ of more relevant processes. Here, we approach the question of whether oscillations are functional or epiphenomenal by distinguishing between measurements and processes, and by reviewing whether causal or inferentially useful links exist between field potentials, electric fields, and neurobiological events. We introduce a vocabulary for the role of brain signals and their underlying processes, demarcating oscillations as a distinct entity where both processes and measurements can exhibit periodicity. Leveraging this distinction, we suggest that electric fields, oscillating or not, are causally and computationally relevant, and that field potential signals can carry information even without causality.
www.cell.com
January 6, 2025 at 9:41 AM
Our work with DMT featured in this extensive piece in Vox @vox.com www.vox.com/the-highligh...
The world’s most mysterious psychedelic is already inside your brain
DMT, “the nuclear bomb of the psychedelic family,” explained.
www.vox.com
December 9, 2024 at 2:12 PM
Eduardo furthers this key discussion of how we validate experience/context-based therapies such as psychedelic therapy
⚠️ My new preprint examines the opposite conclusions of the 🇺🇸FDA👎 and 🇳🇱Dutch Commission👍 about #MDMA therapy for PTSD.

I suggest that FDA more closely followed the hierarchy of EBM, while the Dutch approached what a pluralistic EBM+ assesment would look like.

#psychiatry
#neuroskyence
#PhilSci
December 9, 2024 at 1:32 PM