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Jussi Jylkkä

14 papers in the library · 51 citations · publishing 2019-2026

Papers

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Beyond psychedelic exceptionalism: how people combine meditation with psychoactive substances, and how this relates to well-being.

Psychopharmacology October 17, 2026 Andreas Krabbe, Lena Lindström, Pilleriin Sikka et al.

Combining meditation with psychoactive substances is often assumed to be a niche practice centred on classic psychedelics. We sought to broaden this narrative in two cross-sectional studies. Study 1 used a broad naturalistic sample (N = 1,391) to examine the prevalence of substance use, meditation, and their simultaneous combination, as well as associations with subjective happiness. Study 2...

DOI: 10.1007/s00213-026-07179-5 (opens in new tab) Full text (opens in new tab) Meditation Polysubstance use Psychedelics Psychological flexibility +2

Body image phenomenology in reports of psychedelic and meditative experiences: main themes and associations with body attitudes.

Neuroscience of Consciousness 2026 Hilla Väyrynen, Nanna Strid, Emma Ylönen et al.

Psychedelics and meditation can facilitate transformative experiences with acute changes in sensory processing and self-perception, but research about their relation to narrative and affective-attitudinal body image remains limited. We examined body image themes in psychedelic and meditative experience narratives, compared these between experience types, and examined their associations with...

Comparing psychedelic and meditation experience reports with natural language processing.

Scientific Reports December 16, 2025 Konsta Kallio-Mannila, Rosa Salmela, Jussi Jylkkä 2 citations

Psychedelics and meditation are known for their potential to induce personally meaningful and even transformative experiences. However, it is unclear how similar these experiences are, or how they differ from each other. This explorative study used natural language processing (NLP) methods to compare reports of personally meaningful subjective experiences facilitated by either psychedelic...

The interplay of psychedelic use and meditation in shaping psychological well-being

Consciousness and Cognition December 15, 2025 Andreas Krabbe, Pilleriin Sikka, Jussi Jylkkä

Psychedelic substances and meditation can elicit personally meaningful experiences that support well-being, yet their relative and combined contributions remain unclear. Meditation typically produces gradual improvements through sustained practice, whereas psychedelics may induce acute shifts. To examine these dynamics, we re-analysed data from two cross-sectional online surveys using multiple...

DOI: 10.1016/j.concog.2025.103977 (opens in new tab) Parapsychology Mental health Consciousness Cognition +3

Psychedelic researchers’ own experiences of psychedelic substances, their link to opinions of psychedelics, and reflections on positionality

Psychopharmacology August 11, 2025 Jussi Jylkkä, Aila Mustamo 1 citation

RATIONALE: Anecdotal evidence suggests that psychedelic researchers often have personal experiences with psychedelic substances. While such experiences may benefit research, concerns have been raised about potential biases and "excessive enthusiasm." However, the prevalence of personal experiences, their perceived relevance, and their association with opinions about psychedelics remain...

Meditation and psychedelics facilitate similar types of mystical, psychological, and philosophical-existential insights predictive of wellbeing: a qualitative-quantitative approach.

Consciousness and Cognition July 7, 2025 Jussi Jylkkä, Hilla Väyrynen, Enyu Lin et al. 3 citations

Both psychedelic substances and meditation have been proposed to facilitate personally meaningful and transformative experiences, with insights playing a central role. However, previous research has mainly relied on questionnaires, limiting the range of insights that can be identified. In this study, we recruited participants who provided narrative reports of insights in personally meaningful...

DOI: 10.1016/j.concog.2025.103901 (opens in new tab) Profound personal insights Transformative insights Deep insights Mystical revelations +8

Acceptance as a possible link between past psychedelic experiences and psychological flexibility.

Scientific Reports October 16, 2024 Andreas Krabbe, Pilleriin Sikka, Jussi Jylkkä 9 citations

Increased psychological flexibility (PF) may underlie the lasting positive effects of psychedelic experiences on mental well-being. The associations between different components of PF, psychological inflexibility (PI), and well-being with psychedelic use are not well understood. We conducted a cross-sectional internet survey of participants (N = 629) with experience of classical psychedelics....

DOI: 10.1038/s41598-024-75595-8 (opens in new tab) Full text (opens in new tab) Mindfulness Psychedelics Mental health Psychological flexibility +1

Comforting delusions? How to evaluate the plausibility of mystical-type insights in psychedelic experiences

Philosophical Psychology August 14, 2024 Jussi Jylkkä 8 citations

Psychedelics can facilitate mystical-type insights and beliefs, such as the belief that the fundamental nature of reality is loving consciousness. These belief changes could underlie the positive effects of psychedelics on wellbeing. However, mystical-type beliefs have been criticized of being delusional, as they contradict naturalism. Here I argue that naturalism is one metaphysical position...

DOI: 10.1080/09515089.2024.2391433 (opens in new tab) Mysticism Agnosticism Metaphysics Epistemology +4

Endorsement of metaphysical idealism mediates a link between past use of psychedelics and wellbeing

Scientific Reports June 10, 2024 Jussi Jylkkä, Andreas Krabbe, Patrick Jern 11 citations

It has been proposed that psychedelics promote wellbeing through spiritual-type transformations, involving changes in metaphysical beliefs. Past empirical research shows a link between the use of psychedelics and the endorsement of non-physicalist metaphysical beliefs. However, non-physicalist beliefs encompass a wide range of metaphysical ideas, and their links to wellbeing and psychedelics...

Naturalism and the hard problem of mysticism in psychedelic science.

Frontiers in Psychology March 15, 2024 Jussi Jylkkä 6 citations

Psychedelic substances are known to facilitate mystical-type experiences which can include metaphysical beliefs about the fundamental nature of reality. Such insights have been criticized as being incompatible with naturalism and therefore false. This leads to two problems. The easy problem is to elaborate on what is meant by the "fundamental nature of reality," and whether mystical-type...

DOI: 10.3389/fpsyg.2024.1112103 (opens in new tab) Full text (opens in new tab) Psychedelics Entheogens Hallucinogens Psychoactive substances +17

The holistic effects of medical cannabis compared to opioids on pain experience in Finnish patients with chronic pain.

Journal of Cannabis Research November 9, 2023 Jussi Jylkkä, Aleksi Hupli, Aleksandra Nikolaeva et al.

Medical cannabis (MC) is increasingly used for chronic pain, but it is unclear how it aids in pain management. Previous literature suggests that MC could holistically alter the pain experience instead of only targeting pain intensity. However, this hypothesis has not been previously systematically tested. A retrospective internet survey was used in a sample of Finnish chronic pain patients (40...

DOI: 10.1186/s42238-023-00207-7 (opens in new tab) Full text (opens in new tab) Chronic pain Consciousness Experience Functionality +6

Sociodemographic differences and experienced effects of young adults who use cannabis mainly for self-medication versus recreationally in Finland

Drugs, Habits and Social Policy August 18, 2023 Aleksi Hupli, Ali Ünlü, Jussi Jylkkä et al. 9 citations

Purpose Cannabis use continues to increase worldwide, and a number of nation states are changing their cannabis policies. Policy changes require research into key populations, namely, people who use cannabis. This study aims to examine sociodemographic differences of young Finns who reported using cannabis mainly for self-medication versus mainly recreationally, as well as their reported...

Reconciling Mystical Experiences with Naturalistic Psychedelic Science: Reply to Sanders and Zijlmans.

ACS Pharmacology & Translational Science June 8, 2021 Jussi Jylkkä

In a recent Viewpoint, Sanders and Zijlmans call for the demystification of psychedelic science. However, they ignore the subjective aspect of psychedelic experiences. For the subject, mystical experiences are felt as real and can yield personally meaningful insights. It is a philosophical question whether they are true.

Consciousness as a concrete physical phenomenon.

Consciousness and Cognition September 1, 2019 Jussi Jylkkä, Henry Railo 2 citations

The typical empirical approach to studying consciousness holds that we can only observe the neural correlates of experiences, not the experiences themselves. In this paper we argue, in contrast, that experiences are concrete physical phenomena that can causally interact with other phenomena, including observers. Hence, experiences can be observed and scientifically modelled. We propose that the...

DOI: 10.1016/j.concog.2019.102779 (opens in new tab) Full text (opens in new tab) Empirical observation Epistemic gap Model-dependent realism Philosophy of science +2