Table 2. State survey: overview of measures and corresponding measurement time points.
| Measure | Target concept | Session 1 | Session 2 | Session 3 | Session 4 |
|---|---|---|---|---|---|
| NADA-Sa | Self-transcendence | ✓ | ✓ | ||
| MPoDb | Decentering | ✓ | ✓ | ||
| Pain intensity (single item) | Pain intensity | ✓ | ✓ | ||
| EEGc | Frontal midline theta power | ✓ | ✓ | ||
| fNIRSd | Fronto-temporal-parietal cortical proxy of DMNe activity; cerebral cortex | ✓ | ✓ |
NADA-S: Nondual Awareness Dimensional Assessment–State.
MPoD: Metacognitive Processes of Decentering Scale.
EEG: electroencephalogram.
fNIRS: functional near-infrared spectroscopy.
DMN: default mode network.