| Performance of picture comparison | ||||
|
|
| Placebo | 25 Verum | 50 Verum |
| 0 h | Mean | 54.17 | 49.38 | 53.95 |
| SD | 16.61 | 14.32 | 15.62 | |
| SEM | 3.91 | 3.20 | 3.58 | |
| 2 h | Mean | 58.33 | 63.75 | 59.21 |
| SD | 12.13 | 13.99 | 9.17 | |
| SEM | 2.86 | 3.13 | 2.10 | |
| Performance of Stroop test | ||||
|
|
| Placebo | 25 Verum | 50 Verum |
| 0 h | Mean | 93.06 | 96.88 | 96.32 |
| SD | 18.30 | 13.98 | 16.06 | |
| SEM | 4.31 | 3.13 | 3.68 | |
| 2 h | Mean | 95.14 | 100.00 | 100.00 |
| SD | 12.96 | 0.00 | 0.00 | |
| SEM | 3.06 | 0.00 | 0.00 | |
| Performance of memory test | ||||
|
|
| Placebo | 25 Verum | 50 Verum |
| 0 h | Mean | 70.83 | 77.50 | 85.53 |
| SD | 17.68 | 26.78 | 20.94 | |
| SEM | 4.17 | 5.99 | 4.81 | |
| 2 h | Mean | 80.56 | 73.75 | 80.26 |
| SD | 18.30 | 26.25 | 27.10 | |
| SEM | 4.31 | 5.87 | 6.22 | |
| Performance of concentration performance test | ||||
|
|
| Placebo | 25 Verum | 50 Verum |
| 0 h | Mean | 41.67 | 38.75 | 36.84 |
| SD | 28.44 | 35.80 | 34.73 | |
| SEM | 6.70 | 8.00 | 7.27 | |
| 2 h | Mean | 45.83 | 32.50 | 48.68 |
| SD | 33.49 | 25.78 | 31.70 | |
| SEM | 7.89 | 5.76 | 7.27 | |
| Performance of Brain Teaser | ||||
|
|
| Placebo | 25 Verum | 50 Verum |
| 0 h | Mean | 55.00 | 51.00 | 50.53 |
| SD | 19.78 | 18.89 | 21.47 | |
| SEM | 4.66 | 4.22 | 4.93 | |
| 2 h | Mean | 65.00 | 60.50 | 65.79 |
| SD | 19.78 | 19.86 | 17.42 | |
| SEM | 4.66 | 4.44 | 4.00 | |