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Marc Wittmann

@marcwittmann.bsky.social
715 followers 141 following 109 posts

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'.

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Marc Wittmann @marcwittmann.bsky.social · 11h
Have you ever felt time slow down dramatically? Our findings with lead author Steve Taylor from the first socio-demographically representative sample: 70% have experienced at least one time expansion experience in their lifetime. brill.com/view/journal...
brill.com
Time Expansion Experiences: A Survey and A Qualitative Study
Abstract We report the findings of a survey and a qualitative study of “time expansion experiences” (TEEs) in which time subjectively slows down dramatically. We found that 70% of a sample of 1043 US ...
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Marc Wittmann @marcwittmann.bsky.social · 04/09/2026
Thoughtful analysis of our EU TIMED project with Ruth Ogden and me: Your Perception Of Time Is, In Fact, Warped www.noemamag.com/your-percept...
noemamag.com
Your Perception Of Time Is, In Fact, Warped | NOEMA
We keep marveling at how fast the years go by. The deeper problem is that we’re forgetting them — and losing the quiet, boring moments where memory forms.
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Marc Wittmann @marcwittmann.bsky.social · 03/09/2026
The final article of our EU Horizon 2020 VIRTUALTIMES project with Shiva Khoshnoud and @federicoalvarez.bsky.social at @igpp.bsky.social on Exploring and modifying the sense of time in virtual environments: "How playing video games downregulates self-referential processing".
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Marc Wittmann @marcwittmann.bsky.social · 01/09/2026
Can Science Test the Possibility of Reincarnation? My Psychology Today blog on astounding findings at University of Virginia School of Medicine: In 1,678 cases, the more unexpected the death of the previous person, the shorter intermission time before rebirth www.psychologytoday.com/us/blog/sens...
psychologytoday.com
Can Science Test the Possibility of Reincarnation?
The latest reincarnation research astoundingly reveals that the intermission time between a person’s death and a child’s birth is shorter following unexpected deaths.
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Marc Wittmann @marcwittmann.bsky.social · 18/08/2026
In the spirit of Arthur C Clarke “The only way of discovering the limits of the possible is to venture a little way past them into the impossible” I hosted the symposium "Beyond self, time, and space" celebrating science and friendship under the eclipse of the sun: igpp.de/symposium-be...
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Marc Wittmann @marcwittmann.bsky.social · 10/08/2026
Subjective exceptional experiences are more common—and more transformative—than we think. Our research explores their link to meaning, self-transcendence, and awakening | Psychology Today www.psychologytoday.com/us/blog/sens...
psychologytoday.com
Subjective Exceptional Experiences in Self-Transformation
Subjective exceptional experiences are more common—and more transformative—than we think. New research explores their link to meaning, self-transcendence, and awakening.
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Marc Wittmann @marcwittmann.bsky.social · 31/07/2026
Watch my talk at the Floatation Tank Association webinar, May 28, 2026: Changing Self and Time: Altered States During and After Floatation-REST www.youtube.com/watch?v=ia1O...
youtube.com
Floatation Tank Association - Altered States During and After Floatation-REST Dr. Marc Whittmann
YouTube video by Floatation Tank Association
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Marc Wittmann @marcwittmann.bsky.social · 27/06/2026
My latest experimental co-production with my students: Trait absorption as predictor of altered states of consciousness across three relaxation induction methods: meditation, Ganzfeld, resting osf.io/preprints/ps...
osf.io
OSF
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Marc Wittmann @marcwittmann.bsky.social · 21/06/2026
I am among the speakers of this year's Float Conference im Norfolk, Virginia, September 18 - 20, 2026, presenting our IGPP work on inducing altered states of consciousness in Floatation-REST. www.floatconference.com/speakers
floatconference.com
Speakers | Float Conference
See which float researchers, small business experts, and marketing gurus will be speaking at this year's Float Conference!
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Marc Wittmann @marcwittmann.bsky.social · 18/06/2026
Preprint out! Mapping nonordinary (exceptional) experiences in a representative German sample: Phenomenology, prevalence and links to self-transcendence osf.io/preprints/ps...
osf.io
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Marc Wittmann @marcwittmann.bsky.social · 28/05/2026
The first micro-phenomenological study regarding Floatation-REST is out: We assessed the diachronic and synchronic structure of experience related to altered states of consciousness, out of time and self: link.springer.com/article/10.1...
link.springer.com
The micro-phenomenology of Floatation-REST - BMC Complementary Medicine and Therapies
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...
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Marc Wittmann @marcwittmann.bsky.social · 25/05/2026
I am grateful to Marcin Moskalewicz for inviting me to give a talk on "Embodied time: Neural and bodily foundations of time perception" at the Time in the Mind 10th Summer School of Cognitive Science, Kazimierz, in Poland, 9.9.2026: lsk.kul.pl/projects/mar...
lsk.kul.pl
Marc Wittmann - Embodied Time: Neural and Bodily Foundations of Time Perception - Letnia Szkoła Kognitywistyki
Embodied Time: Neural and Bodily Foundations of Time Perception Marc Wittmann Institute for Frontier Areas of Psychology and Mental Health, Freiburg, Germany […]
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Marc Wittmann @marcwittmann.bsky.social · 14/05/2026
What happens in the brain during flow? Applying EEG microstate analysis during video game play, Shiva Khoshnoud @federicoalvarez.bsky.social and I found that flow is associated with reduced dynamics in brain states linked to self-referential processing in the DMN. www.biorxiv.org/content/10.6...
biorxiv.org
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Marc Wittmann @marcwittmann.bsky.social · 14/04/2026
Why does time speed up as we age? Now in Springer Nature's Memory & Cognition journal: A fascinating case of falsification of our strong and convincing hypothesis with lead author Alice Teghil from Sapienza Università da Roma and my team at @igpp.bsky.social: link.springer.com/article/10.3...
link.springer.com
Memory encoding for new information, not autobiographical memory load, is linked with age-related differences in subjective time passage over the past decade - Memory & Cognition
The widely replicated finding that time passage over the past decade is perceived as faster by older adults was the focus of this study. We investigated potential factors associated with this effect, ...
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Marc Wittmann @marcwittmann.bsky.social · 13/04/2026
The TIMED collaborative effort "The vanishing hours: Future temporal focus and the passage of time in the digital era". Individual and cross-country differences in how digital behaviour affects subjective passage of time: authors.elsevier.com/c/1mwyy_4NEt...
authors.elsevier.com
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Marc Wittmann @marcwittmann.bsky.social · 27/03/2026
Justin Feinstein, President of the Float Research Collective gave a talk at @igpp.bsky.social, here it is now available on youtube:
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Marc Wittmann @marcwittmann.bsky.social · 26/03/2026
Justin Feinstein, President of Float Research Collective, gave a talk at @igpp.bsky.social Freiburg, here it is now availale on youtube:
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Marc Wittmann @marcwittmann.bsky.social · 12/03/2026
Last few days for registering for SENSING TIME, the @timingresforum.bsky.social 2nd Summer School for Master’s students and early-stage PhD researchers, in Padua 6th-10th of July 2026 sites.google.com/view/sensing...
sites.google.com
SensingTime2026
The Shaping a World-class University program of University of Padova and TRF collaborated in the organization of the 2nd TRF training school that took place during the 6th and 10th of July 2026 in Pad...
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Marc Wittmann @marcwittmann.bsky.social · 10/03/2026
Our Special Issue on Investigating Extra-Sensory Experiences & Consciousness through Qualitative Research, edited by @donnamthomas.bsky.social and me. We welcome qualitative studies exploring this under-researched area for an understanding of consciousness think.taylorandfrancis.com/special_issu...
think.taylorandfrancis.com
Special Issue: Investigating Extra-Sensory Experiences and Consciousness through Qualitative Research
Explore Extra-Sensory Experiences and Consciousness: Submit your work to this qualitative enquiry into the extra-sensory dimensions of human experience
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Marc Wittmann @marcwittmann.bsky.social · 08/03/2026
Next in our series on the most boring task ever in psychology: impulsive individuals feel more boredom while waiting—and it makes time feel slower: brill.com/view/journal...
brill.com
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Marc Wittmann @marcwittmann.bsky.social · 02/03/2026
Tuesday, 3.3.2026, at 3.15 pm CET, Dr. Justin Feinstein, President and Director of Float Research Collective gives a talk at the @igpp.bsky.social Freiburg. Stop by at the institute or join via zoom by requesting an email link here: igpp.de/en/justin-fe...
igpp.de
Justin Feinstein, PhD: "A decade of research exploring Floatation-REST as a non-pharmacological intervention for stress and anxiety-related disorders" - IGPP Institut für Grenzgebiete der Psychologie ...
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Marc Wittmann @marcwittmann.bsky.social · 12/02/2026
New preprint out: @donnamthomas.bsky.social and me exploring phenomenal parallels between exceptional experiences in childhood and altered states of consciousness in adults, based on the 8-dimensions approach bei Fort et al: www.sciencedirect.com/science/arti... The preprint: osf.io/preprints/ps...
osf.io
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Marc Wittmann @marcwittmann.bsky.social · 08/02/2026
In the words of Maciej Stolarski, the initiator of this in memoriam article dedicated to Philip G. Zimbardo: "I am happy - and deeply moved - to share our newly published tribute paper honoring Phil, which in many ways feels like our final goodbye to him": onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com
Perspectives on Time and Personality: Philip G. Zimbardo (1934–2024) in Memoriam
The present paper aims to honor the memory of one of the most notable figures in psychological science over the past five decades, Philip G. Zimbardo, who sadly passed away in late 2024. To this end,...
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IGPP @igpp.bsky.social · 07/01/2026
Call for Papers ! Submit your article to the Journal Qualitative Research in Psychology for a Special Issue on: Investigating Extra-Sensory Experiences and Consciousness through Qualitative Research Co-Guest Editor: @marcwittmann.bsky.social #ConsciousnessResearch shorturl.at/VYKFF
shorturl.at
Special Issue: Investigating Extra-Sensory Experiences and Consciousness through Qualitative Research
Explore Extra-Sensory Experiences and Consciousness: Submit your work to this qualitative enquiry into the extra-sensory dimensions of human experience
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Marc Wittmann @marcwittmann.bsky.social · 22/01/2026
An anniversary! Four years of #Floatation-REST @igpp.bsky.social research with the Floataway.com cabin at Prana Freiburg: 2 doctoral theses, 2 master's theses, 2 third-party funding acquisitions, 3 publications, and here the lastest preprint: www.researchsquare.com/article/rs-7...
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Marc Wittmann @marcwittmann.bsky.social · 16/01/2026
Im Rahmen der Vortragsreihe zu 75 Jahre Grenzgebietsforschung am @igpp.bsky.social am 18.11.2025 in Freiburg in der Universitätsbibliothek mein Vortrag: "Wie wir die Zeit erleben: Das leibliche Selbst, veränderte Bewusstseinszustände, anomale Phänomene" youtu.be/A_vhCAu1RwI?...
youtu.be
Wie wir die Zeit erleben: Das leibliche Selbst, veränderte Bewusstseinszustände, anomale Phänomene
YouTube video by IGPP Freiburg
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Donna M Thomas @donnamthomas.bsky.social · 07/01/2026
think.taylorandfrancis.com/special_issu... @marcwittmann.bsky.social Call for papers for this special issue 'Investigating Extra-Sensory Experiences and Consciousness through Qualitative Research
think.taylorandfrancis.com
Special Issue: Investigating Extra-Sensory Experiences and Consciousness through Qualitative Research
Explore Extra-Sensory Experiences and Consciousness: Submit your work to this qualitative enquiry into the extra-sensory dimensions of human experience
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Marc Wittmann @marcwittmann.bsky.social · 06/12/2025
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...
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Marc Wittmann @marcwittmann.bsky.social · 23/11/2025
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...
the-mind.org
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...
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Marc Wittmann @marcwittmann.bsky.social · 15/11/2025
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...
psychologytoday.com
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.
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Marc Wittmann @marcwittmann.bsky.social · 14/11/2025
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...
researchsquare.com
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...
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Marc Wittmann @marcwittmann.bsky.social · 28/10/2025
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...
link.springer.com
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.
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Marc Wittmann @marcwittmann.bsky.social · 14/10/2025
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...
sciencedirect.com
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…
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Marc Wittmann @marcwittmann.bsky.social · 13/10/2025
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...
youtube.com
Subjective Time and Body-Self During Altered States of Consciousness: New Evidence
YouTube video by MIND Foundation
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Marc Wittmann @marcwittmann.bsky.social · 30/09/2025
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...
youtube.com
Dr. Marc Wittmann, Subjective Time and Self in Altered States: Exploring Floatation-REST
YouTube video by ESI Frankfurt
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Marc Wittmann @marcwittmann.bsky.social · 25/09/2025
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...
zuerich.com
Alle Veranstaltungen
Alle Veranstaltungen in Zürich und der Region.
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Marc Wittmann @marcwittmann.bsky.social · 19/09/2025
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.
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IGPP @igpp.bsky.social · 12/09/2025
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...
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Marc Wittmann @marcwittmann.bsky.social · 23/08/2025
More news on interoception and time perception!
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Marc Wittmann @marcwittmann.bsky.social · 18/08/2025
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.io
OSF
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Marc Wittmann @marcwittmann.bsky.social · 12/08/2025
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...
degruyterbrill.com
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...
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Marc Wittmann @marcwittmann.bsky.social · 02/08/2025
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.io
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Marc Wittmann @marcwittmann.bsky.social · 28/07/2025
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.io
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IGPP @igpp.bsky.social · 28/07/2025
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...
igpp.de
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Marc Wittmann @marcwittmann.bsky.social · 23/07/2025
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
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.
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Marc Wittmann @marcwittmann.bsky.social · 02/07/2025
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...
frontiersin.org
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...
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Reposted by Marc Wittmann
Donna M Thomas @donnamthomas.bsky.social · 30/06/2025
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!
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Bigna Lenggenhager @bigna.bsky.social · 22/06/2025
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!
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Marc Wittmann @marcwittmann.bsky.social · 13/06/2025
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.
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