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'.
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...
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.
www.psychologytoday.com
November 15, 2025 at 5:52 PM
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...
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...
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...
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...
www.researchsquare.com
November 14, 2025 at 10:30 AM
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...
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...
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...
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.
link.springer.com
October 28, 2025 at 7:42 AM
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...
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 Università di Roma and I provide the conceptual background in our review on 'How the body and brain process time'. www.sciencedirect.com/science/arti...
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 a…
www.sciencedirect.com
October 14, 2025 at 8:23 AM
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 Università di Roma and I provide the conceptual background in our review on 'How the body and brain process time'. www.sciencedirect.com/science/arti...
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...
Subjective Time and Body-Self During Altered States of Consciousness: New Evidence
YouTube video by MIND Foundation
www.youtube.com
October 13, 2025 at 4:57 PM
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...
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...
Dr. Marc Wittmann, Subjective Time and Self in Altered States: Exploring Floatation-REST
YouTube video by ESI Frankfurt
www.youtube.com
September 30, 2025 at 7:52 AM
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...
Zeit, Raum, Welt und Ich? Photobastei 2.0, Zürich, 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...
www.zuerich.com/de/events-na...
Alle Veranstaltungen
Alle Veranstaltungen in Zürich und der Region.
www.zuerich.com
September 25, 2025 at 6:58 PM
Zeit, Raum, Welt und Ich? Photobastei 2.0, Zürich, 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...
www.zuerich.com/de/events-na...
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.
📢 Now accepted at Neuroscience & Biobehavioral Reviews 🤩
Our proposal offers a framework for understanding how fundamental regulatory sensations, such as boredom & effort, shape temporal experience through interoceptive mechanisms.
Link: www.sciencedirect.com/science/arti...
TL;DR: Check 🧵 below
Our proposal offers a framework for understanding how fundamental regulatory sensations, such as boredom & effort, shape temporal experience through interoceptive mechanisms.
Link: www.sciencedirect.com/science/arti...
TL;DR: Check 🧵 below
September 19, 2025 at 8:53 AM
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.
Reposted by Marc Wittmann
Herzliche Einladung zu unserer Vortragsreihe
„75 Jahre Grenzgebietsforschung in Freiburg“
Am 16. September geht‘s los. Online-Teilnahme möglich. Weitere Informationen unter:
igpp.de/vorlesungsre...
„75 Jahre Grenzgebietsforschung in Freiburg“
Am 16. September geht‘s los. Online-Teilnahme möglich. Weitere Informationen unter:
igpp.de/vorlesungsre...
September 12, 2025 at 8:54 AM
Herzliche Einladung zu unserer Vortragsreihe
„75 Jahre Grenzgebietsforschung in Freiburg“
Am 16. September geht‘s los. Online-Teilnahme möglich. Weitere Informationen unter:
igpp.de/vorlesungsre...
„75 Jahre Grenzgebietsforschung in Freiburg“
Am 16. September geht‘s los. Online-Teilnahme möglich. Weitere Informationen unter:
igpp.de/vorlesungsre...
More news on interoception and time perception!
🎉 Happy to share our latest paper on #Physiology&Behavior @elsevierconnect.bsky.social
Together with Luigi Micillo, Nicola Cellini and Giovanna Mioni we explored the link between cardiac #interoception and time perception
🧵in the comments
Together with Luigi Micillo, Nicola Cellini and Giovanna Mioni we explored the link between cardiac #interoception and time perception
🧵in the comments
In the heart of time: investigating the link between cardiac activity and interoception in explicit and implicit timing
Recent research suggests that our sense of time is influenced by interoceptive abilities. Efficient access to bodily signals, measured objectively (in…
www.sciencedirect.com
August 23, 2025 at 8:48 AM
More news on interoception and time perception!
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...
OSF
osf.io
August 18, 2025 at 5:48 PM
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...
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...
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...
www.degruyterbrill.com
August 12, 2025 at 10:27 AM
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...
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 small—but measurable: osf.io/preprints/ps...
OSF
osf.io
August 2, 2025 at 1:57 PM
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 small—but measurable: osf.io/preprints/ps...
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...
OSF
osf.io
July 28, 2025 at 5:00 PM
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...
Reposted by Marc Wittmann
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...
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...
www.igpp.de
July 28, 2025 at 8:15 AM
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...
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...
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...
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...
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.
link.springer.com
July 23, 2025 at 9:01 AM
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...
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...
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...
www.frontiersin.org/journals/psy...
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...
www.frontiersin.org
July 2, 2025 at 3:03 PM
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...
www.frontiersin.org/journals/psy...
Reposted by Marc Wittmann
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!
June 30, 2025 at 8:36 AM
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!
Reposted by Marc Wittmann
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!
Thanks to @suragenc.bsky.social , Elif, @marcwittmann.bsky.social &Tzvetan!
June 22, 2025 at 10:05 AM
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!
Thanks to @suragenc.bsky.social , Elif, @marcwittmann.bsky.social &Tzvetan!
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.
Talk by Helena Hruby on "Altered states of consciousness during Floatation-REST" at the 2024 Float Conference in San Antonio, USA.
www.youtube.com/watch?v=7q_q...
#Floatation #ASC
www.youtube.com/watch?v=7q_q...
#Floatation #ASC
Altered states of consciousness during Floatation-REST, Helena Hruby | 2024 Float Conference
YouTube video by Float Conference
www.youtube.com
June 13, 2025 at 1:01 PM
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.
Reposted by Marc Wittmann
#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
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
June 4, 2025 at 9:23 AM
#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
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
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...
June 3, 2025 at 3:23 PM
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...
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...
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).
www.psychologytoday.com
May 30, 2025 at 12:01 PM
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...
Reposted by Marc Wittmann
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 🇯🇵
sites.google.com/view/trf4tok...
sites.google.com/view/trf4tok...
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...
sites.google.com
May 26, 2025 at 2:54 PM
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 🇯🇵
sites.google.com/view/trf4tok...
sites.google.com/view/trf4tok...
The pre-proof version of our Neuroscience & Biobehavioral Reviews paper on Classification Schemes of Altered States of Consciousness available. I applaud Larry and Timo for their work of analysing historical and contemporary models of consiousness. www.sciencedirect.com/science/arti...
Classification Schemes of Altered States of Consciousness
In recent years, there has been a renewed interest in the conceptual and empirical study of altered states of consciousness (ASCs) induced pharmacolog…
www.sciencedirect.com
May 17, 2025 at 10:31 AM
The pre-proof version of our Neuroscience & Biobehavioral Reviews paper on Classification Schemes of Altered States of Consciousness available. I applaud Larry and Timo for their work of analysing historical and contemporary models of consiousness. www.sciencedirect.com/science/arti...