Out-of-body experiences (OBEs) can be partially induced in a virtual reality setup. Seven healthy participants wore a VR headset and saw their virtual body from a ceiling viewpoint; in one condition their real movements were mirrored onto the virtual body, in the other they were not. Participants reported strong sensations of floating and being high up, but only weak to moderate feelings of being out of their body. Brain activity recorded with 128 electrodes showed that these subjective experiences were linked to increased delta and decreased alpha power, reduced theta complexity, and increased beta-2 connectivity, supporting the idea that delta activity plays a prominent role in certain conscious states.
One year after a prolonged intensive care unit (ICU) stay, survivors who reported a near-death experience (NDE) retained vivid, stable memories with many phenomenological details such as visual features and emotions. Among 126 adult ICU survivors, 19 (15%) reported an NDE as identified by the Greyson scale. The most common NDE features were altered time perception, heightened senses, and life review; Greyson scores did not change over the year. One year later, 18% of the NDE group and 24% of the non-NDE group were less afraid of death. The findings suggest that clinicians should interview all ICU patients about their memories.