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.
A hypothesis paper proposes the Sphere Model of Consciousness (SMC) to examine consciousness and self-awareness, aiming to address methodological issues in consciousness research. It presents a preliminary attempt to validate the SMC using a simplified electrophysiological topographic map of the Self, showing a gradual shift from faster to slower frequency bands that mirrors dynamics between SMC states of Self. A mini-review of studies explores whether different SMC states of Self correspond to specific frequency bands, and the theoretical argument suggests the SMC's hierarchical organization of three states of Self mirrors the hierarchy of Focused Attention, Open Monitoring, and Non-Dual meditation types. Testable predictions and potential applications are offered.