Wang (2011)
Quality Index (Adjusted QI) 0.701
0 Low < 0.56 Moderate 0.56–0.77 High ≥ 0.78 1
Study Details
ConditionMeditation/brain perfusion
Clinical domainCognition & Neurodegeneration
PopulationExperienced meditators (varies)
Sample size—
Country / SettingUSA - neuroscience research lab
Protocol clusterKirtan Kriya (12-min)
DurationAcute/Cross-sectional
Control typeOther/Mixed
ComparatorN/A - Mechanism study
Outcomes & Effect Sizes
Primary outcomeBrain function (fMRI/SPECT/PET)
Scales usedCBF mapping; PET or SPECT
Key resultDifferent practices show distinct CBF patterns; KK unique
Effect sizeCBF pattern unique to KK vs other practices
RetentionN/A - acute neuroimaging session
SafetySafe during SPECT imaging
Methodological Summary
Observational neuroimaging; mechanism study; no control
KY Protocol Components
Kirtan Kriya: 12-minute singing meditation using mantra "Sa-Ta-Na-Ma" with finger movements (thumb touches index, middle, ring, pinky sequentially). Structure: 2 min aloud → 2 min whisper → 4 min silent → 2 min whisper → 2 min aloud. STUDY-SPECIFIC: fMRI neuroimaging study examining brain activation patterns during Kirtan Kriya practice.
Quality Item Scores — 1 fail · 2 partial · 3 pass · ★ critical
★A1
3
A2
2
★B2
2
B3
3
B4
2
★B5
3
B6
2
★B7
2
★B8
1
B9
2
JP1
3
Critical fails1
Raw QI0.758
SAF0.925
Adjusted QI0.701
Final ratingModerate