Frontiers in psychology
January 1, 2020
Joseph Glicksohn, Tal Dotan Ben-Soussan
19 citations
A female participant who scored the maximum on the Absorption Scale reported a spiritual experience—feeling she was meeting God—while immersed in a whole-body perceptual deprivation tank. Her experience included imagery of a spaceship, corridors, a man in white, speaking to God, the sun, supernova, concentric images, and an out-of-body experience. Her EEG showed frontal and parietal left-greater-than-right alpha asymmetry at baseline, and during the tank condition, a global increase in alpha power with a sharp increase in right-frontal alpha power. Comparing her data with another high-absorption participant and two low-absorption participants suggests that verbalizable spiritual experiences may be linked to increased right-frontal alpha power, whereas ineffable mystical experiences might involve increased left-frontal alpha power.
Frontiers in psychology
January 1, 2020
Tal Dotan Ben-Soussan, Fabio Marson, Claudia Piervincenzi et al.
12 citations
Silence-related experiences during meditation are linked to changes in brain structure and reduced attentional effort. In a study of Quadrato Motor Training (QMT), participants who reported increased silence-related experiences after six weeks of practice also showed decreased attentional effort and increased fractional anisotropy in the left uncinate fasciculus, a white-matter tract. The findings suggest that silence in meditation involves specific neuroanatomical changes and may reduce the cognitive effort required to maintain attention.
Progress in brain research
January 1, 2023
Michele Pellegrino, Joseph Glicksohn, Fabio Marson et al.
3 citations
Immersion in the OVO Whole-Body Perceptual Deprivation chamber, a homogeneous sensory environment, consistently produces positively connotated, bodily-oriented, and cognitively dedifferentiated subjective states in most people. Semi-structured interviews with 32 participants, analyzed by three independent evaluators, showed significant consensus on experiences such as softened boundaries across time and sensory modalities. These subjective findings align with prior electrophysiological results that reported increased delta and beta activity in the left inferior frontal cortex and left insula during immersion.