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Marc Wittmann

@marcwittmann.bsky.social

Psychologist at the Institute for Frontier Areas of Psychology and Mental Health in Freiburg. Time perception in ordinary and altered states of consciousness. MIT Press book author: 'Felt Time' and 'Altered States of Consciousness'.

676 Followers  |  138 Following  |  84 Posts  |  Joined: 01.12.2023  |  2.0455

Latest posts by marcwittmann.bsky.social on Bluesky

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The @springernature.com book "The Bodily Self, Emotion, and Subjective Time: Exploring Interoception through the Contributions of A.D. (Bud) Craig" is out: 22 authors, 16 chapters. Neurobiology, Psychology, Psychiatry, Neuroimaging, Musicology, Philosophy, ... link.springer.com/book/10.1007...

06.12.2025 16:34 โ€” ๐Ÿ‘ 10    ๐Ÿ” 1    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 1
THE MIND THE MIND Bulletin of Mind-Body Medicine Research is published by the Mind-Body Medicine Research Council, which has been founded by George Stefano, Ph.D., and Tobias Esch, M.D., in 2022. Find all issu...

A sketch of an idea to a theory of why altered states of consciousness as induced through psychedelics, meditation, and Floatation-REST have therapeutic potential for alleviating psychiatric conditions.
www.the-mind.org/the-mind/iss...

23.11.2025 11:16 โ€” ๐Ÿ‘ 4    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 1
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The Real Reason the Last Decade of Our Life Seems to Fly By Our new study shows why time feels like it speeds up with age. The good news: Older adults cherish and recall their meaningful experiences more vividly than the younger do.

The Real Reason the Last Decade of Our Life Seems to Fly By. My Psychology Today blog on our latest empirical discovery with Alice Teghil as to why time speeds up as we grow older. It is not related to autobiographical memory but to cognitve decline. www.psychologytoday.com/us/blog/sens...

15.11.2025 17:52 โ€” ๐Ÿ‘ 4    ๐Ÿ” 2    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
The micro-phenomenology of Floatation-REST This micro-phenomenological study examines altered states of consciousness (ASC) during Floatation-REST, a sensory isolation method where individuals lie in a tank filled with Epsom salt-saturated wat...

The very first micro-phenomenological study on experience during Floatation-REST from my lab at @igpp.bsky.social
revealing the dynamics of how individuals enter into altered states of consciousness. Part 2 of Helena Hruby's doctoral thesis:
www.researchsquare.com/article/rs-7...

14.11.2025 10:30 โ€” ๐Ÿ‘ 3    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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The Bodily Self, Emotion, and Subjective Time This book provides a comprehensive exploration of the interplay between the bodily self, emotion, and subjective time perception and consciousness.

On November 26 our @SpringerNature book in commemoration of Bud (A.D.) Craig's legacy is out. See TOC with 14 contributions on the insular cortex, bodily self, emotion, psychiatric disorders, epilepsy, pain, mindfulness, touch, music, and subjective time. link.springer.com/book/10.1007...

28.10.2025 07:42 โ€” ๐Ÿ‘ 11    ๐Ÿ” 6    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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Reinterpreting the Einstein-Bergson Debate through Contemporary Neuroscience Reinterpreting the Einstein-Bergson Debate through Contemporary Neuroscience was published in Einstein vs. Bergson on page 349.

Together with Carlos Montemayor we wrote a book chapter on the Einstein-Bergson debate:
www.degruyterbrill.com/document/doi...

14.10.2025 12:18 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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How the body and brain process time Recent evidence from two independent meta-analyses reveals that subjective time is processed in the insular cortex alongside the supplementary motor aโ€ฆ

The two main hubs in the brain for the processing of human time perception have been identified: SMA and Insula. Here Alice Teghil from Sapienza Universitร  di Roma and I provide the conceptual background in our review on 'How the body and brain process time'. www.sciencedirect.com/science/arti...

14.10.2025 08:23 โ€” ๐Ÿ‘ 31    ๐Ÿ” 11    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 0
Subjective Time and Body-Self During Altered States of Consciousness: New Evidence
YouTube video by MIND Foundation Subjective Time and Body-Self During Altered States of Consciousness: New Evidence

Now and newly online available, my talk at the INSIGHT 2023 conference of the MIND Foundation in Berlin: "Subjective Time and Body-Self During Altered States of Consciousness: New Evidence". www.youtube.com/watch?v=vcyH...

13.10.2025 16:57 โ€” ๐Ÿ‘ 3    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Dr. Marc Wittmann, Subjective Time and Self in Altered States: Exploring Floatation-REST
YouTube video by ESI Frankfurt Dr. Marc Wittmann, Subjective Time and Self in Altered States: Exploring Floatation-REST

My talk at the ESI Systems Neuroscience Conference (ESISyNC) 2025 on "Subjective Time and Self in Altered States: Exploring Floatation-REST", Frankfurt, 9.9.2025, to be found here on Youtube: www.youtube.com/watch?v=phDq...

30.09.2025 07:52 โ€” ๐Ÿ‘ 7    ๐Ÿ” 4    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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Alle Veranstaltungen Alle Veranstaltungen in Zรผrich und der Region.

Zeit, Raum, Welt und Ich? Photobastei 2.0, Zรผrich, 29.10.2025, 19:00 - 21:00 Uhr: Eine Diskussion zu psychedelischen Erfahrungen und Bewusstsein mit Susanne Schmetkamp, Kurt Stocker, Marc Wittmann
www.zuerich.com/de/events-na...

25.09.2025 18:58 โ€” ๐Ÿ‘ 1    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Yes, me too! Give us a clue!

19.09.2025 09:53 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Me too! Give us a hint!

19.09.2025 09:40 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Boredom on many levels of inquiry: as body feelings, subjective slowing down of time, and related insular cortex activity. Review out by @wanjawolff.bsky.social and team.

19.09.2025 08:53 โ€” ๐Ÿ‘ 7    ๐Ÿ” 2    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Herzliche Einladung zu unserer Vortragsreihe
โ€ž75 Jahre Grenzgebietsforschung in Freiburgโ€œ

Am 16. September gehtโ€˜s los. Online-Teilnahme mรถglich. Weitere Informationen unter:
igpp.de/vorlesungsre...

12.09.2025 08:54 โ€” ๐Ÿ‘ 3    ๐Ÿ” 3    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

More news on interoception and time perception!

23.08.2025 08:48 โ€” ๐Ÿ‘ 5    ๐Ÿ” 2    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
OSF

A fascinating case of falsification of our strong and convincing hypothesis with lead author Alice Teghil: Memory encoding for new information, not autobiographical memory load, predicts age-related acceleration in subjective time passage over the last decade osf.io/preprints/ps...

18.08.2025 17:48 โ€” ๐Ÿ‘ 5    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Silence, darkness, and gravity: A qualitative analysis of individual experiences during Floatation-REST Background: In Floatation-REST (Reduced Environmental Stimulation Therapy), an individual lies on the surface of highly saline water in a dark and silent environment. Prior research on Floatation-REST...

Our first qualitative methods article in the @degruyterbrill.bsky.social journal Spiritual Care on "Silence, darkness, and gravity: A qualitative analysis of individual experiences during Floatation-REST" now available: www.degruyterbrill.com/document/doi...

12.08.2025 10:27 โ€” ๐Ÿ‘ 3    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
OSF

The TIMED project www.timed-europe.net reveals: The more we live in the online world, and the more we enjoy and benefit from that immersion, the more quickly life seems to speed by. The good news? This effect is relatively smallโ€”but measurable: osf.io/preprints/ps...

02.08.2025 13:57 โ€” ๐Ÿ‘ 2    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
OSF

How do the body and brain process time? Evidence from neuroimaging, neurophysiological, electrophysiological, and patient-based studies suggest that time perception is grounded in interoceptive (insula) and sensorimotor processing (SMA). Preprint with Alice Teghil osf.io/preprints/ps...

28.07.2025 17:00 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Anomalies, Demarcation, and Discovery:
Toward Constructive Engagement with Frontier Science
Lecture by Florian Metzler, PhD
#IGPPKolloquium 29.07.25, 15:15 (CET) live or via zoom
Register here: www.igpp.de/allg/kolloqu...

28.07.2025 08:15 โ€” ๐Ÿ‘ 2    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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The Bodily Self, Emotion, and Subjective Time This book provides a comprehensive exploration of the interplay between the bodily self, emotion, and subjective time perception and consciousness.

In the upcoming book on A.D. (Bud) Craig's legacy
link.springer.com/book/9783031...
Alice Teghil writes about body processes in retrospective timing:
link.springer.com/chapter/10.1...
Marc Wittmann & Sylvie Droit-Volet on how the body informs about time passage:
link.springer.com/chapter/10.1...

23.07.2025 09:01 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

I think that Craig would agree with most parts of your thread when he expounds that emotional moments are the integration of body signals with motivational and cognitive states. That is your "bidirectional interplay between bodily sensations, the narrative self, and metacognitive self-appraisal".

13.07.2025 14:00 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Frontiers | New measurements of digital technology use: the Immersion in Digital Life and Quality of Digital Experience scales IntroductionCurrent methods of assessing digital technology use fail to adequately capture a holistic picture of how individuals experience digital technolog...

The first of two validation articles on the Immersion in Digital Life Scale (IDLS) and Quality of Digital Experience Scale (QDES) to measure experience with digital technology use is out, a collaborative effort of the www.timed-europe.net TIMED network
www.frontiersin.org/journals/psy...

02.07.2025 15:03 โ€” ๐Ÿ‘ 4    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Ever had any strange experiences? We're looking for adults aged 45-60 years living in North of England to take part in our research. Get in touch if interested, there'll be some great discussions and free supper!

30.06.2025 08:36 โ€” ๐Ÿ‘ 2    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

As exciting as being in "flow" is researching it! We present a new continuous subjective measure that doesn't interfere with flow to to temporally connect subjective experience with physiological data osf.io/preprints/os...
Thanks to @suragenc.bsky.social , Elif, @marcwittmann.bsky.social &Tzvetan!

22.06.2025 10:05 โ€” ๐Ÿ‘ 15    ๐Ÿ” 2    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 0

Watch Helena Hruby's talk on our first #Floatation-REST study as part of her doctoral thesis, at the 2024 Float Conference in San Antonio, USA.

13.06.2025 13:01 โ€” ๐Ÿ‘ 3    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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#ASC #CMT

Fort, L. D., Costines, C., Wittmann, M., Demertzi, A., & Schmidt, T. T. (2025). Classification schemes of altered states of consciousness. Neuroscience & Biobehavioral Reviews, 175, 106178. doi.org/10.1016/j.ne...

@marcwittmann.bsky.social @ademertzi.bsky.social @titoschmi.bsky.social

04.06.2025 09:22 โ€” ๐Ÿ‘ 11    ๐Ÿ” 2    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 0
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Coming in September 2025: 16 chapters in the @springernature.com book on "The Bodily Self, Emotion, and Subjective Time: Exploring Interoception through the Contributions of A.D. (Bud) Craig". Subsequently I present all online chapters here. Today 1/16: link.springer.com/chapter/10.1...

03.06.2025 15:23 โ€” ๐Ÿ‘ 4    ๐Ÿ” 2    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Time and Existence: How Artists Try to Grasp the Ineffable Contemporary artists find different expressions to cope with existential aspects of time referring to either the expiring life (chronos) or the passing moment to moment (kairos).

The death of a friend. Today, 3 years ago. In memory of Dirk, my Psychology Today blog on art and existential time. The last painting of the 2nd millenium. www.psychologytoday.com/us/blog/sens...

30.05.2025 12:01 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Timing Research Forum 4 Welcome to TRF4! The 4th Timing Research Forum Conference We are excited to welcome you to TRF4, the fourth international conference organized by the Timing Research Forum (TRF) community. TRF is a v...

ONE WEEK LEFT to submit abstracts for #TRF4 in Tokyo! If you're doing work related to #time, #timing, #temporal_processing (broadly defined), you should join us! Funds available to support travel, keynotes confirmed, and a free half-day tour of Tokyo ๐Ÿ‡ฏ๐Ÿ‡ต

sites.google.com/view/trf4tok...

26.05.2025 14:54 โ€” ๐Ÿ‘ 5    ๐Ÿ” 4    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

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