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'.https://bsky.app/profile/marcwittmann.bsky.socialhttps://bsky.app/profile/marcwittmann.bsky.social/post/3mltnls2lsc2yWhat 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. https://www.biorxiv.org/content/10.64898/2026.05.11.724329v114 May 2026 20:24 +0000at://did:plc:bvfdthdrrl7ekoyuxafrx4dt/app.bsky.feed.post/3mltnls2lsc2yhttps://bsky.app/profile/marcwittmann.bsky.social/post/3mjh7hjvog22rWhy 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: https://link.springer.com/article/10.3758/s13421-026-01879-114 Apr 2026 10:49 +0000at://did:plc:bvfdthdrrl7ekoyuxafrx4dt/app.bsky.feed.post/3mjh7hjvog22rhttps://bsky.app/profile/marcwittmann.bsky.social/post/3mjfh2rj2bc2vThe 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: https://authors.elsevier.com/c/1mwyy_4NEtDCLj13 Apr 2026 18:00 +0000at://did:plc:bvfdthdrrl7ekoyuxafrx4dt/app.bsky.feed.post/3mjfh2rj2bc2vhttps://bsky.app/profile/marcwittmann.bsky.social/post/3mi266sdcmc2zJustin Feinstein, President of the Float Research Collective gave a talk at @igpp.bsky.social, here it is now available on youtube: [contains quote post or other embedded content]27 Mar 2026 12:57 +0000at://did:plc:bvfdthdrrl7ekoyuxafrx4dt/app.bsky.feed.post/3mi266sdcmc2zhttps://bsky.app/profile/marcwittmann.bsky.social/post/3mhxhfoteas2eJustin Feinstein, President of Float Research Collective, gave a talk at @igpp.bsky.social Freiburg, here it is now availale on youtube: [contains quote post or other embedded content]26 Mar 2026 11:03 +0000at://did:plc:bvfdthdrrl7ekoyuxafrx4dt/app.bsky.feed.post/3mhxhfoteas2ehttps://bsky.app/profile/marcwittmann.bsky.social/post/3mgukw5pe6k2jLast 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 https://sites.google.com/view/sensingtime2026/home-page12 Mar 2026 14:03 +0000at://did:plc:bvfdthdrrl7ekoyuxafrx4dt/app.bsky.feed.post/3mgukw5pe6k2jhttps://bsky.app/profile/marcwittmann.bsky.social/post/3mgpbm6rfmc25Our 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 https://think.taylorandfrancis.com/special_issues/special-issue-investigating-extra-sensory-experiences-and-consciousness-through-qualitative-research/10 Mar 2026 11:33 +0000at://did:plc:bvfdthdrrl7ekoyuxafrx4dt/app.bsky.feed.post/3mgpbm6rfmc25https://bsky.app/profile/marcwittmann.bsky.social/post/3mgk556j4lk2vNext in our series on the most boring task ever in psychology: impulsive individuals feel more boredom while waiting—and it makes time feel slower: https://brill.com/view/journals/time/aop/article-10.1163-22134468-bja10134/article-10.1163-22134468-bja10134.xml08 Mar 2026 10:30 +0000at://did:plc:bvfdthdrrl7ekoyuxafrx4dt/app.bsky.feed.post/3mgk556j4lk2vhttps://bsky.app/profile/marcwittmann.bsky.social/post/3mg3h7sctcs2nTuesday, 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: https://igpp.de/en/justin-feinstein-phd-a-decade-of-research-exploring-floatation-rest-as-a-non-pharmacological-intervention-for-stress-and-anxiety-related-disorders/02 Mar 2026 14:20 +0000at://did:plc:bvfdthdrrl7ekoyuxafrx4dt/app.bsky.feed.post/3mg3h7sctcs2nhttps://bsky.app/profile/marcwittmann.bsky.social/post/3meogbxn42s2aNew 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: https://www.sciencedirect.com/science/article/pii/S0149763425001782 The preprint: https://osf.io/preprints/psyarxiv/zjt8n_v112 Feb 2026 16:34 +0000at://did:plc:bvfdthdrrl7ekoyuxafrx4dt/app.bsky.feed.post/3meogbxn42s2ahttps://bsky.app/profile/marcwittmann.bsky.social/post/3mee5nkq73k24In 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": https://onlinelibrary.wiley.com/doi/10.1111/jopy.70052?af=R08 Feb 2026 14:33 +0000at://did:plc:bvfdthdrrl7ekoyuxafrx4dt/app.bsky.feed.post/3mee5nkq73k24https://bsky.app/profile/marcwittmann.bsky.social/post/3mcz3qk3xsc2pAn 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: https://www.researchsquare.com/article/rs-7301168/v122 Jan 2026 11:34 +0000at://did:plc:bvfdthdrrl7ekoyuxafrx4dt/app.bsky.feed.post/3mcz3qk3xsc2phttps://bsky.app/profile/marcwittmann.bsky.social/post/3mcl7m4x5l22nIm 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" https://youtu.be/A_vhCAu1RwI?si=UlUMEWJl9lh5L3qS16 Jan 2026 23:06 +0000at://did:plc:bvfdthdrrl7ekoyuxafrx4dt/app.bsky.feed.post/3mcl7m4x5l22nhttps://bsky.app/profile/marcwittmann.bsky.social/post/3m7dgkq7vbs2vThe @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, ... https://link.springer.com/book/10.1007/978-3-031-94035-406 Dec 2025 16:34 +0000at://did:plc:bvfdthdrrl7ekoyuxafrx4dt/app.bsky.feed.post/3m7dgkq7vbs2vhttps://bsky.app/profile/marcwittmann.bsky.social/post/3m6c6qmpiqk2aA 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. https://www.the-mind.org/the-mind/issue-2025-3/report-2/23 Nov 2025 11:16 +0000at://did:plc:bvfdthdrrl7ekoyuxafrx4dt/app.bsky.feed.post/3m6c6qmpiqk2ahttps://bsky.app/profile/marcwittmann.bsky.social/post/3m5or6aahok2nThe 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. https://www.psychologytoday.com/us/blog/sense-of-time/202511/the-real-reason-the-last-decade-of-our-life-seems-to-fly-by15 Nov 2025 17:52 +0000at://did:plc:bvfdthdrrl7ekoyuxafrx4dt/app.bsky.feed.post/3m5or6aahok2nhttps://bsky.app/profile/marcwittmann.bsky.social/post/3m5lhyeyvps2qThe 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: https://www.researchsquare.com/article/rs-7301168/v114 Nov 2025 10:30 +0000at://did:plc:bvfdthdrrl7ekoyuxafrx4dt/app.bsky.feed.post/3m5lhyeyvps2qhttps://bsky.app/profile/marcwittmann.bsky.social/post/3m4agnqmvgk2bOn 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. https://link.springer.com/book/10.1007/978-3-031-94035-428 Oct 2025 07:42 +0000at://did:plc:bvfdthdrrl7ekoyuxafrx4dt/app.bsky.feed.post/3m4agnqmvgk2bhttps://bsky.app/profile/marcwittmann.bsky.social/post/3m35cgxri3c2bThe 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'. https://www.sciencedirect.com/science/article/pii/S0149763425004178?via%3Dihub14 Oct 2025 08:23 +0000at://did:plc:bvfdthdrrl7ekoyuxafrx4dt/app.bsky.feed.post/3m35cgxri3c2bhttps://bsky.app/profile/marcwittmann.bsky.social/post/3m33ootu3rc2zNow 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". https://www.youtube.com/watch?v=vcyHx6Cy5RE13 Oct 2025 16:57 +0000at://did:plc:bvfdthdrrl7ekoyuxafrx4dt/app.bsky.feed.post/3m33ootu3rc2zhttps://bsky.app/profile/marcwittmann.bsky.social/post/3m2226hycxs25My 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: https://www.youtube.com/watch?v=phDqIkM3mB030 Sep 2025 07:52 +0000at://did:plc:bvfdthdrrl7ekoyuxafrx4dt/app.bsky.feed.post/3m2226hycxs25https://bsky.app/profile/marcwittmann.bsky.social/post/3lzon3aiqz22rZeit, 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 https://www.zuerich.com/de/events-nachtleben/event-finden?eventId=117958751825 Sep 2025 18:58 +0000at://did:plc:bvfdthdrrl7ekoyuxafrx4dt/app.bsky.feed.post/3lzon3aiqz22rhttps://bsky.app/profile/marcwittmann.bsky.social/post/3lz6ih46pts2xBoredom 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. [contains quote post or other embedded content]19 Sep 2025 08:53 +0000at://did:plc:bvfdthdrrl7ekoyuxafrx4dt/app.bsky.feed.post/3lz6ih46pts2xhttps://bsky.app/profile/marcwittmann.bsky.social/post/3lx2lmedqrc2tMore news on interoception and time perception! [contains quote post or other embedded content]23 Aug 2025 08:48 +0000at://did:plc:bvfdthdrrl7ekoyuxafrx4dt/app.bsky.feed.post/3lx2lmedqrc2thttps://bsky.app/profile/marcwittmann.bsky.social/post/3lwoxh4cmwc2rA 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 https://osf.io/preprints/psyarxiv/kd76j_v118 Aug 2025 17:48 +0000at://did:plc:bvfdthdrrl7ekoyuxafrx4dt/app.bsky.feed.post/3lwoxh4cmwc2rhttps://bsky.app/profile/marcwittmann.bsky.social/post/3lw73ypygic2iOur 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: https://www.degruyterbrill.com/document/doi/10.1515/spircare-2025-0054/html12 Aug 2025 10:27 +0000at://did:plc:bvfdthdrrl7ekoyuxafrx4dt/app.bsky.feed.post/3lw73ypygic2ihttps://bsky.app/profile/marcwittmann.bsky.social/post/3lvgd33gums2fThe 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: https://osf.io/preprints/psyarxiv/x4ub5_v202 Aug 2025 13:57 +0000at://did:plc:bvfdthdrrl7ekoyuxafrx4dt/app.bsky.feed.post/3lvgd33gums2f