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Nicholas T. van Dam

19 papers in the library · 191 citations · publishing 2020-2026

Papers

A Framework for the Empirical Investigation of Mindfulness Meditative Development

Mindfulness April 13, 2023 Julieta Galante, Andrea Grabovac, Malcolm Wright et al. 82 citations

About half of the millions of people who learn mindfulness meditation continue regular practice after initial instruction, but it is unclear whether benefits increase with ongoing practice or whether harm can occur. Evidence shows a wide range of experiences from positive to challenging and potentially harmful. Complex interactions and temporal sequences may explain these experiences and their links to health and well-being. Effects may vary systematically due to factors like initial dosage, accumulated practice, developing skill, and interactions with past experiences and environment. The authors call for interdisciplinary, ontologically agnostic research using longitudinal models and insights from contemplative traditions to develop safer, more effective applications.

Prevalence and 20-year trends in meditation, yoga, guided imagery and progressive relaxation use among US adults from 2002 to 2022

Scientific Reports July 1, 2024 Jonathan N. Davies, Anna Faschinger, Julieta Galante et al. 45 citations

Between 2002 and 2022, the use of meditation, yoga, and guided imagery or progressive relaxation among US adults rose significantly. By 2022, 18.3% (60.53 million) practiced meditation, 16.8% (55.78 million) practiced yoga, and 6.7% (22.22 million) used guided imagery or progressive relaxation. Growth was widespread across sociodemographic groups, but people of 'Other' race (54% Indigenous Americans) and those with moderate psychological distress were overrepresented across all practices. Individuals with severe distress were more likely to use meditation and guided imagery or progressive relaxation. Meditation use accelerated among adults aged 65 and older, those not accessing mental health care, and less educated groups, suggesting unmet health needs.

Underestimating harm in mindfulness-based stress reduction

Psychological Medicine December 7, 2020 Nicholas T. van Dam, Julieta Galante 19 citations

A critique of a recent study on harm after mindfulness-based stress reduction (MBSR) programs points out serious methodological limitations that undermine confidence in the authors' conclusion that MBSR is no more harmful than no treatment. The original study used a large observational dataset of 2,155 participants alongside active and wait-list arms of randomized controlled trials (156 and 118 participants respectively). The critique argues that despite the seemingly conclusive finding, the methods employed have potentially serious flaws.

Subjective Experiences of Committed Meditators Across Practices Aiming for Contentless States

Mindfulness June 1, 2023 Toby J. Woods, Jennifer Windt, Lydia Brown et al. 15 citations

People who practice Shamatha, Thai Forest, or Stillness Meditation typically report a highly positive experience of stillness or silence with little awareness of thoughts and perceptions, but with a high degree of abstract content such as calm and mental relaxation. Across the three traditions, robust differences emerged in reports of bliss/joy, wakefulness, absorptiveness, and depth. The experiences are contentless only in the sense of lacking obvious mental content like thoughts, not in being devoid of all content, challenging the classical view that such states are identical across traditions.

Incidence and Predictors of Meditation-Related Unusual Experiences and Adverse Effects in a Representative Sample of Meditators in the United States

Clinical Psychological Science January 6, 2025 Nicholas T. van Dam, Jessica Targett, Jonathan N. Davies et al. 14 citations

Meditation use in the United States is about as common as accessing mental health services, making it important to understand its potential harms. In a survey of 886 U.S. adults, nearly all (96.6%) reported an unusual experience related to meditation, 58.4% reported an adverse effect on a standard inventory, 78.3% endorsed at least one item on a scale of meditation-related adverse effects, 31.4% said they had a challenging, difficult, or distressing experience, and 9.1% reported functional impairment due to such effects. Psychological distress, psychoticism, unusual beliefs, and attending a meditation retreat were each linked to more unusual experiences and adverse effects. The authors recommend informing potential meditators about possible experiences, considering risk factors, and routinely monitoring for adverse effects.

Too much or not enough of a good thing? Reconciling differing perspectives on the optimal dose of mindfulness meditation and advancing a dose-response research agenda

June 23, 2023 Nicholas Bowles, Jonathan N. Davies, Sarah Strohmaier et al. 10 citations preprint

Mindfulness meditation is widely practiced in religious and secular settings, with many studies suggesting benefits for psychosocial well-being. Yet little is known about dose-response effects—how often or how long one must practice to achieve specific goals. Recommended practice durations are becoming shorter, but the impact of this reduction on outcomes is unclear. This review critically appraises evidence from empirical studies, traditional sources, and contemporary teaching trends. It argues that previous studies' limited dose ranges and analytic approaches hinder understanding of dose-response. The authors propose a research agenda prioritizing dose-response questions, using designs optimized to examine how the relationship varies by outcome and individual, which could reconcile conflicting knowledge and tailor mindfulness offerings.

High-precision neurofeedback-guided meditation training optimises real-world self-guided meditation practice for well-being

bioRxiv (Cold Spring Harbor Laboratory) October 26, 2024 Saampras Ganesan, Nicholas T. van Dam, Sunjeev K. Kamboj et al. 3 citations preprint

Personalized high-precision neurofeedback (NF) can help novice meditators better disengage from mental activity during meditation, improving emotional well-being and mindful awareness. In a single-blind, controlled study, 40 novices received two days of meditation training with feedback from either their own or a matched participant's posterior cingulate cortex (PCC) activity, measured using 7 Tesla fMRI. The experimental group showed stronger functional decoupling of PCC from dorsolateral prefrontal cortex, indicating improved control over disengagement. This led to greater improvements in emotional well-being and mindful awareness during a week of real-world self-guided meditation, supporting the utility of NF-guided meditation training.

Incidence and predictors of meditation-related unusual experiences and adverse effects in a representative sample of meditators in the United States.

May 13, 2024 Nicholas T. van Dam, Jessica Targett, Jonathan N. Davies et al. 2 citations preprint

Meditation use is now as common as mental health service access. In a cross-sectional, population-based survey of 886 US adults, 96.6% reported an unusual experience related to meditation, 58.4% reported an adverse effect (AE), 78.3% endorsed at least one item on the Meditation-related AEs Scale, 31.4% reported a challenging, difficult, or distressing experience, and 9.1% reported functional impairment due to AEs. Psychological distress, psychoticism, unusual beliefs, and meditation retreat participation were positively associated with unusual experiences and AEs. The findings suggest that potential meditators should be informed about possible experiences, providers should consider risk factors, and AEs should be routinely and actively monitored.

Meditation attenuates Default-mode activity: a pilot study using ultra-high strength MRI

bioRxiv (Cold Spring Harbor Laboratory) January 3, 2023 Saampras Ganesan, Bradford A. Moffat, Nicholas T. van Dam et al. 1 citation preprint

Using ultra-high strength 7 Tesla fMRI, a pilot study scanned 10 beginner meditators during focused attention meditation and rest. Meditation significantly reduced activity in Default-mode network hubs—antero-medial prefrontal cortex, posterior cingulate cortex, precuneus—and in visual and thalamic regions, even after adjusting for physiological differences between conditions. State Mindfulness Scale scores significantly increased after the meditation session and remained elevated at a two-week follow-up. The findings support that focused attention meditation attenuates default-mode activity linked to self-referential processing, establishing the feasibility of 7 Tesla fMRI for meditation research.

A randomized controlled trial exploring dose-response effects of mindfulness meditation practice on wellbeing

June 25, 2026 Nicholas Bowles, Nicholas T. van Dam, Jonathan N. Davies et al. preprint

Among 716 meditation-naïve healthy adults randomly assigned to 4, 10, 20, or 30 minutes of daily mindfulness meditation over 28 days, all groups showed significant improvements in wellbeing and mental health symptoms from baseline to post-intervention. No evidence of a dose–response effect emerged: longer assigned practice durations were not more beneficial than shorter ones. Adherence declined with longer assignments; 70.9% of the 10-minute group completed at least two-thirds of sessions versus 48.5% of the 30-minute group. Exploratory analyses indicated that actual practice engagement and confidence in meditation's efficacy predicted better outcomes, suggesting that adherence and expectancy may matter more than prescribed length.

Contemplative practices serve as complementary mental health strategies in nationally representative samples from Australia and New Zealand

Scientific Reports May 19, 2026 Karin Matko, Cate Bailey, Julieta Galante et al.

Seventy percent of adults in Australia and New Zealand engaged in contemplative practices such as meditation, yoga, or breathing techniques in the past year, most commonly meditation (31%). Practitioners reported higher psychological distress and greater use of mental healthcare than non-practitioners. After adjusting for sociodemographic differences, the association with distress disappeared for yoga and relaxation practitioners but remained for breathing techniques, which were linked to increased distress in all models. Among those with unmet healthcare needs, meditators and relaxation practitioners reported less distress than non-practitioners with unmet needs. The findings suggest contemplative practices may serve as complements to mental healthcare, but their complex relationships with mental health require further study.

Quality of Life, Healthcare Use and Cost of Practice From a Nationally-Representative Australian Survey to Inform Future Economic Evaluations of Contemplative Practices

Mindfulness February 25, 2026 Cate Bailey, Nicholas T. van Dam, Jonathan N Davies et al.

A nationally representative Australian survey compared quality of life, health service use, and costs among meditators, other contemplative practitioners, and non-practitioners. Unadjusted quality-of-life scores were higher for non-practitioners, and this difference persisted after accounting for demographics but disappeared when mental health service use was included. Unmet mental-health service need was highest among meditators (13.9%) versus non-practitioners (2.4%). The average annual cost of contemplative practice was $1,281 per person. The findings provide preliminary data for future economic evaluations of contemplative practices.

Introducing interdisciplinary contemplative pedagogy: a case study of ‘ The Art and Science of Meditation ’

Pedagogy Culture and Society December 8, 2025 Christopher T. Mccaw, Haisu Sun, Julieta Galante et al.

A model for applying contemplative pedagogy in higher education emphasizes rich contextualization and interdisciplinarity. The framework places embodied contemplative practices within concentric layers of context, drawing from multiple disciplinary perspectives. It addresses challenges educators face in contemporary universities, using cosmopolitanism to navigate epistemological, cultural, and practical diversity. The course 'The Art and Science of Meditation' illustrates this approach.

Contemplative Practices as Complementary Mental Health Strategies: Insights from a Nationally Representative Sample in Australia and New Zealand

October 20, 2025 Karin Matko, Cate Bailey, Julieta Galante et al. preprint

A nationally representative survey of 2,640 Australians and New Zealanders found that 70% had engaged in contemplative practices over the past year, most commonly meditation, relaxation, breathing techniques, and yoga. Users of these practices reported higher psychological distress and mental healthcare use than non-practitioners. After adjusting for socio-demographic differences, the association with distress disappeared for yoga and relaxation practitioners; for meditators it disappeared when accounting for mental healthcare use. Breathing practice remained linked to increased distress across all models. However, meditators and relaxation practitioners with unmet healthcare needs reported less distress than non-practitioners with unmet needs. The practices may play a complementary or alternative role in managing mental health.

Quality-Of-Life, Healthcare Use and Cost of Practice from a Nationally-Representative Australian Survey to inform future economic evaluations of Contemplative practices

September 16, 2025 Cate Bailey, Nicholas T. van Dam, Jonathan N. Davies et al. preprint

A nationally representative Australian survey of 2,065 people found that meditators and other contemplative practitioners had lower unadjusted quality-of-life than non-practitioners, a difference that persisted after accounting for demographics but disappeared when mental health service use was considered. Unmet mental-health service need was highest among meditators (13.9%) versus non-practitioners (2.4%), and 8.9% of the overall sample had unmet need. The average annual cost of contemplative practices was $1,281 per person. The findings provide preliminary data for future cost-effectiveness evaluations of contemplative practices, with the EQ-HWB-9 index performing well as an outcome measure.

“Exploding into the Universe”: Exploring intense meditation-related experiences (IMREs) and perceived impacts on the sense of self

July 25, 2025 Tom Wood, Merle Kock, Nicholas T. van Dam et al. preprint

Intense meditation-related experiences (IMREs) can alter the sense of self, worldview, and emotions, impacting daily life. Through in-depth interviews with thirteen meditators, four themes emerged: watching the self and world transform; emotional explosions leading to insight; gaining new perspectives and agency; and challenges in talking about the experience. Meditators used concepts from science and meditative traditions to make sense of IMREs, which were profound transformative experiences that changed how they perceived and acted in the world. The meaning of these experiences was immediately clear for some but clarified over time for most.

Meditation experiences through a developmental lens: Does the “Stages of Insight”, a Buddhist model of meditative progression, apply to contemporary meditators?

May 27, 2025 Prai Wattanatakulchat, Julieta Galante, Timothy Wood et al. preprint

Unwanted meditation-related experiences are common and alternate with positive ones, but predicting them is difficult because they have been studied as isolated events. This survey of 886 U.S. meditators tested whether a modern interpretation of the Stages of Insight (SoI), a Buddhist model of meditative progression, fits contemporary meditators. Only four of the eight stages could be assessed. The pattern of item endorsement predicted the number of stages reached better than chance, but early stages were not more frequently endorsed than later ones, and more meditation experience did not predict classification into later stages. The findings provide no clear evidence that the SoI model applies across contexts and traditions, but show that traditional models can guide research on meditation experiences as developmental processes.

Examining the Dose-Response Effects of Mindfulness Meditation Interventions on Well-Being: Protocol for a Randomized Controlled Trial (Preprint)

February 17, 2025 Nicholas Bowles, A. Bürger, Jonathan N. Davies et al.

A planned online mindfulness course for healthy adults aged 18–65 years will test whether longer daily meditation practice (10, 20, or 30 minutes) produces greater improvements in well-being and other psychological outcomes than a short control practice (4 minutes). The study aims to enroll at least 688 participants, but recruitment has been slow and affected by fraudulent entries; by the end of 2024 only 70 eligible participants had enrolled. The trial will measure well-being, distress, anxiety, depression, and other factors at several time points, with results expected by March 2026.

Introducing interdisciplinary contemplative pedagogy: A case study of “The Art and Science of Meditation”

February 11, 2025 Christopher T. Mccaw, Julieta Galante, Cullan Joyce et al.

A conceptual framework is presented for applying contemplative pedagogy in higher education, emphasizing rich contextualization and interdisciplinarity. The model places embodied contemplative activities within concentric layers of socio-cultural, political, religious, ethical, and material context. Cosmopolitanism is introduced to address epistemological, cultural, and practical diversity encountered by educators and students. The framework is illustrated through a case study of an undergraduate subject, The Art and Science of Meditation, designed by the authors.