A novel ego dissolution scale: A construct validation study

Cultivating Self-Transcendence Through Meditation Practice: A Test of the Role of Meta-Awareness, (Dis)identification and Non-Reactivity

In this paper, we present a study comprising two distinct stages to examine the extent to which metacognitive processes of decentering facilitate the emergence of self-transcendence experiences in everyday life (i.e., the frequency of self-transcendent emotions, flow proneness, and adopting an interconnected identity). In the course of conducting this research, the first stage (N = 374) focused on assessing the structure and validity of the French version of the Metacognitive Processes of Decentering Scale (MPoD-t). Building on this, the second stage (N = 294) examined the potential relationship between meditative practices and psychological decentering processes (i.e., meta-awareness, (dis)identification with internal experiences, and (non)reactivity to thought content) and explored whether these mechanisms explain the association between meditative practices and the experience of self-transcendent states. Overall, the results demonstrated satisfactory psychometric properties of the French version of the MPoD and provided enhanced insights into the distinct mediating roles played by various decentering components in the manifestation of self-transcendence experiences in daily life. Indeed, the findings revealed that the relationship between practice and the occurrence of self-transcendent emotions or flow was mediated by the meta-awareness component, while the association between practice and the development of an interconnected identity was explained by the (dis)identification with internal experiences component. The implications of these findings are discussed.

Clarifying and measuring the characteristics of experiences that involve a loss of self or a dissolution of its boundaries

Mystical experience, non-dual awareness, selflessness, self-transcendent experience, and ego-dissolution have become increasingly prominent constructs in meditation and psychedelic research. However, these constructs and their measures tend to be highly overlapping, imprecise, and poorly integrated with similar pathological experiences. The present study seeks to clarify the common factors involved in the characteristics of these experiences using precise distinctions across an array of experience contexts (including meditation, psychedelics, and psychopathology). Participants (N = 386) completed an online survey about an experience that involved either a dissolution of self-boundaries or a loss of selfhood. Confirmatory factor analyses resulted in 16 experience characteristics, including multiple types of changes in sense of self, co-occurring phenomenology, and cognitive and affective responses. Qualitative thematic analysis provided rich descriptions of experience characteristics. Taken together, results lead to a more specific measurement model and descriptive account of experiences involving a loss of self or self-boundary.

Cross-validation of the ego dissolution scale: implications for studying psychedelics

Introduction

Ego dissolution, variously called Ego-Loss, self-loss, and ego disintegration, is a hallmark of psychedelic drug use. We cross-validated the 10-item Ego Dissolution Scale, which we developed to assess ego dissolution in everyday life, and we included comparator variables that expanded our original assessment of construct validity.

Methods

Undergraduate college student volunteers (N = 527) completed the measures online.

Results

We replicated the original two factor structure (i.e., subfactors: Ego-Loss and Unity/connectedness with others, the world, universe), and we determined that the total score (Cronbach's α = 0.79) and subfactors (Ego-Loss = 78; Unity = 0.83) possessed adequate-to-good reliability and strong convergent validity (e.g., mindfulness, hallucination-predisposition, sleep variables, personality variables, positive/negative affect transliminality, dissociation/depersonalization), while neuroticism, social desirability did not correlate highly with ego dissolution. We identified distinct patterns of relations of measures associated with the Ego-Loss vs. Unity subfactors.

Discussion

We discuss the implications of the use of the EDS for studying everyday aspects of ego dissolution, the long-term effects of psychedelic use, and the value of using the scale in conjunction with measures of the acute effects of psychedelics.