Reaching a higher state of consciousness is a concept you’re more likely to hear a spiritualist spout than a scientist, but now neuroscientists at the University of Sussex claim to have found the first evidence of just such a state. From wakefulness down to a deep coma, consciousness is on a sliding scale measured by the diversity of brain signals, and the researchers found that when under the influence of psychedelic drugs, that diversity jumps to new heights above the everyday baseline.

The research builds on data gathered about a year ago by a team at Imperial College London, which dosed up volunteers with psychedelics, including LSD, psilocybin and ketamine, then scanned their brains with magnetoencephalographic (MEG) techniques to examine the effects. This new study set out to determine how a psychedelic state would compare to other levels of wakefulness and unconsciousness, according to a scale of brain signal diversity measured by monitoring the magnetic fields produced by the brain.

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