Table 8 Ego-Dissolution Inventory (EDI).

From: Phenomenology and content of the inhaled N, N-dimethyltryptamine (N, N-DMT) experience

Questionnaire items

Documented in experience, n (%)

All experiences (n = 3778)

Experiences with no reported concomitant psychoactive substance use (n = 3242)

Felt especially assertive

4 (0.1)

4 (0.1)

Experienced a dissolution of “self” or ego

140 (3.7)

129 (4.0)

Felt more important or special than others

4 (0.1)

3 (0.1)

Felt at one with the universe

112 (3.0)

104 (3.2)

Ego felt inflated

4 (0.1)

4 (0.1)

Felt a sense of union with others

82 (2.2)

76 (2.3)

Felt especially sure-of-myself

6 (0.2)

6 (0.2)

Experienced a decrease in sense of self-importance

92 (2.4)

83 (2.6)

Felt especially keen and competitive

4 (0.1)

3 (0.1)

Experienced a disintegration of “self” or ego

140 (3.7)

124 (3.8)

Felt like viewpoint was worth more than other peoples’

3 (0.1)

3 (0.1)

Felt far less absorbed by own issues and concerns

81 (2.1)

74 (2.3)

Felt especially self-confident

6 (0.2)

6 (0.2)

Lost all sense of ego

134 (3.5)

122 (3.8)

Felt especially self-assured

6 (0.2)

6 (0.2)

All notion of self and identity dissolved away

134 (3.5)

124 (3.8)