TABLE 6.
Overview of pre-planned sensitivity analyses.
| Task–subtest | Unmodified analysis | Matched control groups | Restriction to same serotonergic psychedelics | Exclusion of study with greatest weight |
|---|---|---|---|---|
| VLT–Trial 5 | 3 pairs MD 0.24 [-0.87, 1.35], p = 0.68, I2 = 69% |
N/A1 | N/A1 | N/A2 |
| VLT–Short recall after interference | 3 pairs MD -0.05 [-1.11, 1.02], p = 0.93, I2 = 57% |
N/A1 | N/A1 | N/A2 |
| VLT–Long delayed recall | 4 pairs MD 0.03 [-0.59, 0.64], p = 0.94, I2 = 43% |
N/A1 | 3 pairs (Ayahuasca) MD -0.13 [-1.01, 0.76], p = 0.78, I2 = 43% |
3 pairs MD -0.13 [-1.01, 0.76], p = 0.78, I2 = 43% |
| VLT–Recognition | 3 pairs MD -0.04 [-0.40, 0.32], p = 0.84, I2 = 31% |
N/A1 | N/A1 | N/A2 |
| TMT-A | 3 pairs MD -0.03 [-1.99, 1.94], p = 0.98, I2 = 9% |
N/A1 | N/A2 | N/A2 |
| TMT-B | 3 pairs MD -0.03 [-7.36, 7.29], p = 0.99, I2 = 57% |
N/A1 | N/A2 | N/A2 |
| Stroop–Word list | 5 pairs MD 0.05 [-0.43, 0.52], p = 0.85, I2 = 86% |
N/A1 | 4 pairs (Ayahuasca) MD 0.14 [-0.42, 0.69], p = 0.63, I2 = 86% |
4 pairs MD 0.14 [-0.42, 0.69], p = 0.63, I2 = 86% |
| Stroop–Color list | 5 pairs MD 0.25 [-0.17, 0.68], p = 0.24, I2 = 82% |
N/A1 | 4 pairs (Ayahuasca) MD 0.34 [-0.15, 0.84], p = 0.18, I2 = 82% |
4 pairs MD 0.34 [-0.15, 0.84], p = 0.18, I2 = 82% |
| Stroop–Incongruent list | 5 pairs MD 0.38 [0.03, 0.72], p = 0.03, I2 = 73% |
N/A1 | 4 pairs (Ayahuasca) MD 0.49 [0.16, 0.83], p = 0.004, I2 = 60% |
4 pairs MD 0.49 [0.16, 0.83], p = 0.004, I2 = 60% |
| ROCF–Copy | 3 pairs MD 0.30 [-0.22, 0.83], p = 0.99, I2 = 57% |
N/A1 | N/A2 | N/A2 |
| ROCF–Delayed recall | 3 pairs MD 1.03 [-0.35, 2.42], p = 0.14, I2 = 0% |
N/A1 | N/A2 | N/A2 |
N/A = analysis not available; 1unmodified analysis already fulfilled this criterion; 2sample size <three. VLT, Verbal Learning Task; TMT, Trail Making Test; ROCF, Rey-Osterrieth Complex Figure Test