How does mindfulness meditation quiet the neural sense of self?
By directing their attention, experienced meditators can turn down distinct brain networks that produce our everyday sense of identity and immediate physical experience.
Source
Mindfulness-induced selflessness: a MEG neurophenomenological study
What they did
Researchers recorded brain activity using magnetoencephalography in 12 long-term mindfulness practitioners as they generated different states of self-awareness. The practitioners mentally projected 3 distinct conditions: a narrative self focused on identity, a minimal self focused on present physical experience, and a selfless state. Each condition lasted for 30 seconds and was repeated 3 times. Following the recording, participants provided verbal descriptions of their subjective experiences.
What they found
When meditators shifted from a narrative self to a minimal self, they showed a decrease in high-frequency gamma-band activity in the medial prefrontal cortex. Dropping the minimal self to enter a selfless state was linked to decreased beta-band brainwaves in the right inferior parietal lobule, especially for those experiencing a total lack of ownership over their thoughts. These neural changes corresponded with a significant drop in negative emotions during the present-centered states.
The limits
What it doesn't show
The study is limited by a small sample of only 12 participants, all of whom practice a specific style of meditation, making it hard to generalize to other populations or other meditation styles. Because the design is correlational, it cannot prove that the observed changes in brain activity directly cause the subjective feeling of selflessness. Additionally, the retrospective interviews relied on participants' memory of their experiences, which could introduce bias or inaccuracies.
Key terms
- Magnetoencephalography (MEG)
- A non-invasive neuroimaging technique that maps brain activity by recording magnetic fields produced by naturally occurring electrical currents in the brain.
- Neurophenomenology
- An approach that combines subjective reports of experience with objective brain imaging data.
- Narrative Self
- A mode of self-awareness that integrates memories, future planning, and personal traits into a continuous personal identity.
- Minimal Self
- A mode of self-awareness focused strictly on the immediate present moment, specifically the sense of owning and causing bodily actions.
- Selfless state
- An experiential state where conscious awareness continues but lacks a central, subjective sense of an observer or owner.
- Gamma-band activity
- High-frequency brain oscillations typically associated with active cognitive processing and sensory integration.
Flashcards
Want these cards to stick?
Save the deck to NoteFren and study it with spaced repetition.
Quiz yourself
What are the two distinct types of self-awareness commonly dissociated in contemporary neurocognitive studies of the self?
Common questions
How did the researchers know that the brain changes weren't just due to muscle relaxation?
The researchers performed control analyses showing that the brain patterns did not match typical muscle artifacts and were localized in deep neural regions rather than at the borders of the head sensors.
Why was beta-band activity particularly interesting for the minimal self?
Beta-band activity is traditionally associated with motor planning and physical action, which are core components of our physical, moment-to-moment sense of ownership.
What is the difference between Vipassana and other types of meditation mentioned?
Vipassana focuses specifically on mindfulness and present-moment observation, whereas other styles like Zen or non-dual practices may have different conceptual goals or training methods.
Did the participants find the selfless state harder to sustain than the other states?
No, participants rated their success and stability similarly across all conditions, meaning difficulty did not explain the different brain signals.
More on Neural oscillations