Newberg (2012)
Quality Index (Adjusted QI) 0.645
0 Low < 0.56 Moderate 0.56–0.77 High ≥ 0.78 1
Study Details
ConditionCognitive decline (neuroimaging review)
Clinical domainCognition & Neurodegeneration
PopulationMultiple studies (literature)
Sample size—
Country / SettingMultiple; international research synthesis
Protocol clusterKirtan Kriya (12-min)
Duration8 weeks, 12 min/day Kirtan Kriya
Control typeOther/Mixed
ComparatorN/A - Review/Qualitative
Outcomes & Effect Sizes
Primary outcomeBrain function (fMRI/SPECT/PET)
Scales usedVarious CBF/imaging methods
Key resultCBF changes with meditation; attention networks engaged
Effect sizeMeta-synthesis of CBF/fMRI changes across practices
RetentionN/A - literature review
SafetyGenerally safe; reviewed studies report no serious events
Methodological Summary
Literature review; heterogeneous methods; synthesis
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: Neuroscience mechanisms study; cerebral blood flow and brain activation patterns; meditation depth analysis.
Quality Item Scores — 1 fail · 2 partial · 3 pass · ★ critical
★A1
2
A2
2
★B2
2
B3
3
B4
2
★B5
1
B6
2
★B7
2
★B8
2
B9
2
JP1
3
Critical fails1
Raw QI0.697
SAF0.925
Adjusted QI0.645
Final ratingModerate