Psilocybin Shows Surprising Potential in Quieting Chronic Tinnitus

How Psilocybin Might Affect the Brain's Sound Processing in Tinnitus

According to НВ — Техно: Chronic tinnitus-a persistent ringing, buzzing, hissing, or clicking heard only by the affected person-affects more than one in ten people worldwide, yet no reliable cure exists. A new research review suggests that psilocybin, the active compound in magic mushrooms, could alter the activity of nerve cells responsible for processing sound and shift the balance between neurons, potentially offering a new avenue for treatment.

The review's authors propose that psilocybin's impact may go beyond its psychedelic effects, targeting instead the neural circuits that handle auditory information. Preliminary evidence points to its ability to adjust the equilibrium between neurons, which could be relevant to tinnitus development. A key piece of evidence comes from a 2024 Canadian study, which has not yet undergone independent peer review. In that experiment, mice received psilocybin, and researchers then observed how their brains responded to sounds. After the dose, the mice continued reacting to familiar noises as if hearing them for the first time, while their sensitivity to quiet sounds remained high. In contrast, the control group, which received a saline solution, gradually stopped responding to repeated sounds.

Future Research Directions

However, the researchers found no evidence that psilocybin completely overhauls the brain's sound-processing system. The data only indicate that it may influence which signals the brain ignores and which it continues to perceive. Scientists note that current evidence suggests tinnitus likely originates in the brain, not the ears. The brain is thought to mistakenly interpret an internal signal as new and important, rather than learning to disregard it.

The review also highlights the role of two neurotransmitters-glutamate and GABA (gamma-aminobutyric acid). Previous studies link tinnitus to an imbalance between these chemicals. When GABA levels are insufficient, nerve cell activity increases, and hearing-related neurons may start transmitting signals in the absence of real sound. The brain then perceives these signals as noise. Psilocybin also affects this system. According to the review, it raises glutamate levels, which in turn stimulates the release of more GABA. The researchers believe this could help restore balance and make the brain less prone to fixating on a phantom sound.

Still, the authors caution that the review does not prove psilocybin's effectiveness in treating tinnitus. Its purpose is to summarize existing data and identify promising directions for future studies. They note that further exploration of this connection could deepen understanding of psilocybin's therapeutic potential, provide a scientific foundation for new treatments, and offer more effective options for people with tinnitus.

Currently, patients with chronic tinnitus are most often prescribed:

• antidepressants
• anticonvulsants
• vasodilators

These medications do not always work and can cause side effects. Meanwhile, psilocybin has already shown promising results in clinical trials for depression, anxiety disorders, and addictions, where even a single dose has sometimes produced long-lasting effects. If future research confirms its influence on the mechanisms that determine which sounds the brain pays attention to, it could open new possibilities for tinnitus treatment.

Investigating the potential use of psilocybin in chronic tinnitus highlights the importance of exploring novel therapeutic approaches for this condition, especially since traditional methods are not always effective. Continued research in this area could lead to the development of new, more effective ways to help tinnitus patients and improve their quality of life.

As researchers explore the potential of psilocybin in treating tinnitus, understanding how to retrain the brain to alter habits becomes increasingly relevant. Insights from recent studies suggest that similar mechanisms could be at play, emphasizing the brain's adaptability and its role in managing sensory perceptions. This connection could open new pathways not only for tinnitus treatment but also for broader applications in neuroscience.