New study sheds light on how DMT alters brain waves to induce the loss of self

A recent study published in The Journal of Neuroscience reveals that the psychedelic drug DMT disrupts the brain's normal balanced state, causing it to move toward a more random pattern. This shift in brain activity corresponds to the intense feeling of losing one's sense of self, a common experience during psychedelic trips. The research team, including lead authors Mona Irrmischer and Marco Aqil from the Netherlands and Imperial College London, used electroencephalography (EEG) to record brain electrical activity in 27 healthy adult participants.

Participants received either DMT or a placebo, and their brain waves were monitored for 20 minutes after the drug was administered. The researchers found that DMT caused a widespread decrease in long-range temporal correlations across various brain wave frequencies, including theta, alpha, and beta waves. These waves, which normally exhibit complex and structured patterns, became more random and less structured under the influence of DMT.

This shift in brain dynamics was linked to a decrease in the ratio of excitatory to inhibitory brain activity, indicating a transition from a critical to a subcritical state. In the subcritical state, the brain exhibited high randomness but low complexity, resembling a state of white noise. The researchers also noticed that the greater the shift away from criticality, the more intense the participants' feelings of ego dissolution.

This finding suggests that DMT alters brain waves in a way that closely mirrors the experience of losing one's sense of self during psychedelic trips.