Meditation states and traits: EEG, ERP, and neuroimaging studies.
Level 5 - mechanism / opinion, no new human data
Narrative review of neuroelectric and neuroimaging literature
PubMed 16536641 · doi:10.1037/0033-2909.132.2.180
What was done
This narrative review synthesized published research on the neurophysiological correlates of meditation states and traits, focusing on electroencephalographic (EEG) recordings, sensory and cognitive event-related potentials (ERPs), and functional neuroimaging studies.
What was found
The abstract reports no numerical values, effect sizes, or counts of included studies. Qualitatively, it reports that meditation is associated with general EEG slowing, with theta and alpha wave activation linked to practitioner proficiency. Sensory evoked potentials demonstrated amplitude and latency shifts during concentrative meditation, while cognitive ERPs showed modified attentional allocation. Functional neuroimaging studies indicated increased regional cerebral blood flow, highlighting structural involvement of the anterior cingulate cortex and dorsolateral prefrontal cortex.
Why it matters
This review integrates diverse neuroelectric and imaging modalities to establish a neurological framework for meditation, linking subjective practice to specific prefrontal attentional networks.
Limits
The abstract provides no quantitative data, sample sizes, or study counts. As a narrative review, it lacks systematic search criteria and risk-of-bias grading. The authors explicitly note that observed neurophysiological state and trait effects remain variable across the literature.
Cited by
- context During meditation, brain electrical activity starts altering within 30 seconds and cerebral blood flow changes within 5 to 10 minutes.