Mindfulness meditation alters neural oscillations independently of arousal.
Alexander T. Duda, Adam R. Clarke, Robert J. Barry
International Journal of Psychophysiology November 1, 2024 DOI: 10.1016/j.ijpsycho.2024.112439 (opens in new tab)
Study at a glance
AI-extracted from the abstract| Characteristics | Observational cohort Peer reviewed |
|---|---|
| Sample size | 52 |
| Population | Healthy young adults |
| Intervention | Mindfulness meditation |
| Topics | Meditation |
| Keywords | Arousal Breath EEG Scl Fpca |
| Key findings | Mindfulness meditation decreased traditional alpha amplitude and increased a complex delta-theta-alpha component, with no changes in skin conductance level, supporting a state of relaxed alertness not driven by arousal. |
Abstract
Neuroscience has identified that mindfulness meditation induces a state of relaxed alertness, characterised by changes in theta and alpha oscillations and reduced sympathetic arousal, although the underlying mechanisms remain unclear. This study aims to address this gap by examining changes in neural oscillations and arousal during mindfulness meditation using both traditional and data-driven methods. Fifty-two healthy young adults underwent electroencephalography (EEG) and skin conductance level (SCL) recordings during resting baseline and mindfulness meditation conditions, both conducted with eyes closed. The EEG data revealed a significant decrease in traditional alpha (8-13 Hz) amplitude during mindfulness meditation compared to rest. However, no significant differences were observed between conditions in traditional delta, theta, beta, or gamma amplitudes. Frequency Principal Components Analysis (fPCA) was employed as a data-driven approach, identifying six components consistent across conditions. A complex delta-theta-alpha component significantly increased during mindfulness meditation. In contrast, low alpha (~9.5 Hz) and low alpha-beta (~11 Hz) components decreased significantly during mindfulness meditation. No significant differences were observed between conditions in the delta, high alpha, and high alpha-beta components. Additionally, there were no significant differences in SCL between conditions, nor were there correlations between traditional alpha or fPCA components and SCL. These findings support the conceptualisation of mindfulness meditation as a state of relaxed alertness, characterised by changes in neural oscillations likely associated with attention and awareness. However, the observed changes do not appear to be driven by arousal.
Comparable studies
Other observational and cohort studies on meditation, most cited first.
| Study | Year | Design | Participants |
|---|---|---|---|
| Using Self-Report Assessment Methods to Explore Facets of Mindfulness Undergraduate students | 2006 | Observational cohort | |
| Effectiveness of a meditation-based stress reduction program in the treatment of anxiety disorders Patients with generalized anxiety disorder or panic disorder with or without agoraphobia | 1992 | Observational cohort | n = 22 |
| Meditation experience is associated with increased cortical thickness Participants with extensive Insight meditation experience and matched controls | 2005 | Observational cohort | n = 20 |
| Meditation experience is associated with differences in default mode network activity and connectivity Experienced meditators and matched meditation-naive controls | 2011 | Observational cohort | |
| Long-term meditators self-induce high-amplitude gamma synchrony during mental practice Long-term Buddhist practitioners and controls | 2004 | Observational cohort |
Citations in the library
Cited by 10
- Differential Effects of Mindfulness Meditation and Paced Breathing on Neural Oscillations and Arousal Mindfulness August 15, 2025
- Neural Oscillatory and Sympathetic Arousal Dynamics During Mindfulness Meditation: Characterizing Relaxed Alertness Psychophysiology October 1, 2026
- Prana-Centered AI Integrating Subtle Yogic Energetics Into Intelligent Wellness Systems Advances in Computational Intelligence and Robotics June 18, 2026
- Trance states during a mind–body intervention monitored by BIS Frontiers in Psychology January 30, 2026
- EEG Effects of Vibroacoustic Stimulation and Guided Mindfulness Meditation on Cognitive Well-Being, Concentration, and Relaxation Psychology International September 29, 2025
and 5 more in the library
Cites 31
- Alterations in Brain and Immune Function Produced by Mindfulness Meditation Psychosomatic Medicine July 1, 2003
- Mindfulness Interventions Annual Review of Psychology September 30, 2016
- Mind the Hype: A Critical Evaluation and Prescriptive Agenda for Research on Mindfulness and Meditation Perspectives on Psychological Science October 10, 2017
- Long-term meditators self-induce high-amplitude gamma synchrony during mental practice Proceedings of the National Academy of Sciences November 8, 2004
- A systematic review of neurobiological and clinical features of mindfulness meditations Psychological Medicine November 27, 2009
and 26 more in the library