Increased signal diversity/complexity of spontaneous EEG, but not evoked EEG responses, in ketamine-induced psychedelic state in humans.
PLoS One – November 23, 2020
Source: PubMed Central
Summary
The brain's electrical activity becomes remarkably more complex during a ketamine-induced psychedelic state. Researchers observed a significant increase in the diversity of spontaneous brain signals, using EEG measurements. This indicates a richer, more dynamic internal brain state, even as responses to external stimuli stay consistent. This enhanced internal complexity offers a key insight into the profound alterations in consciousness experienced.
Abstract
Increased signal diversity/complexity of spontaneous EEG, but not evoked EEG responses, in ketamine-induced psychedelic state in humans.