Table 2.
Proportion of participants who indicated they experienced each acute subjective effect of ibogaine, and comparisons of means and standard deviations, of items assessing acute subjective ibogaine experiences between treatment responders and non-responders
| Characteristics | Full sample | Treatment responders (n = 68) | Treatment non-responders (n = 20) | t-test statistic |
|---|---|---|---|---|
|
|
|
|
||
| % endorseda | M (SD) | M (SD) | ||
| I saw visions or visuals | 88 | 1.33 (0.94) | 1.53 (0.87) | 0.793 |
| My withdrawal symptoms were eliminated or drastically reduced | 80 | 1.05 (1.24) | 1.29 (1.05) | 0.753 |
| I experienced physical discomfort | 74 | 0.75 (1.20) | 0.71 (1.11) | −0.137 |
| I saw geometric shapes | 68 | 0.61 (1.22) | 0.88 (1.32) | 0.808 |
| I gained insightful knowledge about myself | 67 | 0.81 (1.11) | 0.47 (1.28) | −1.092 |
| I experienced something sacred or spiritual | 64 | 0.66 (1.29) | 0.18 (1.38) | −1.346 |
| I experienced fear | 51 | 0.11 (1.39) | 0.53 (1.07) | 1.154 |
| I saw frightening images | 49 | 0.06 (1.46) | 0.35 (1.32) | 0.744 |
| I experienced a feeling of unity with ultimate reality | 48 | 0.39 (1.29) | −0.24 (1.44) | −1.734 |
| I worked through or released feelings of unhealthy shame or guilt | 46 | 0.30 (1.15) | −0.24 (1.15) | −1.696 |
| I gained insight into the causes or reasons for my addiction | 43 | 0.41 (1.08) | −0.47 (1.13) | −2.951* |
| I recalled and experienced difficult memories from my past | 36 | −0.11 (1.27) | −0.29 (1.36) | −0.524 |
| I felt like I was being reborn | 32 | −0.03 (1.32) | −0.41 (1.37) | −1.047 |
| I gained insight into past trauma in my life | 30 | −0.03 (1.08) | −0.53 (1.28) | −1.621 |
| I experienced bliss or ecstasy | 26 | −0.09 (1.28) | −0.59 (1.18) | −1.438 |
Note.
a
This response category was collapsed to include those who selected “Strongly agree” or “Agree” that he or she agreed with statements indicating the experiences each acute subjective effect of ibogaine. Range of scores was −2 to +2 for each item.
*
p < 0.01.