Synthesis:11 Dimensions Altered State of Consciousness Questionnaire

As described in Corneille & Luke (2021),

The 11-Dimensional Altered States of Consciousness Rating Scale (11D-ASC; Studerus et al., 2010), is a 42-item scale, developed from the 94-item 5-Dimensional Altered States of Consciousness Rating Scale (5D-ASC) (Dittrich, 1998) to measure the intensity of ASCs.

As such, it is essentially as shorter version of the 5D-ASC that was re-factored into and alternative, expanded set of dimensions. Studerus et al. (2010) note that the new lower order scales are most likely better suited to assess drug induced ASC.

Dimensions

Experience of unity (5 items)

Spiritual experience (3 items)

Blissful state (3 items)

Insightfulness (3 items)

Disembodiment (3 items)

Impaired control and cognition (7 items)

Anxiety (6 items)

Complex imagery (3 items)

Elementary imagery (3 items)

Audio-visual synaesthesia (3 items)

Changed meaning of percepts (3 items)

Note that, as with the 5D-ASC scale, there is a copyright on the exact content of the scale, thus we do not provide a detailed breakdown of items here.