Vagus Nerve Stimulation for Misophonia Relief

A 64-year-old woman with severe misophonia, whose main trigger was the sound of a basketball bouncing, saw her symptom severity score drop from 80 to 9 after a one-month trial of a non-invasive nerve stimulation technique. This single case report, published by Francesca Proietti, Massimo Marano, and Emanuele Rizzo, suggests bilateral transcutaneous auricular vagus nerve stimulation (taVNS) may be a viable approach for misophonia cases dominated by strong autonomic nervous system reactions.

Targeting the Body’s Alarm System: A New Angle on Treatment

Misophonia is more than simple annoyance. It is characterized by intense emotional, behavioral, and autonomic responses to specific, often ordinary, sounds. Common triggers include chewing, pen-clicking, or, as in this case, a bouncing ball. The autonomic responses—like rapid heart rate, sweating, and a sense of terror—suggest the body’s “fight-or-flight” system is being erroneously activated. Current treatment evidence is limited, and approaches directly targeting this autonomic dysregulation are rare.

This case study explored transcutaneous auricular vagus nerve stimulation (taVNS). This non-invasive method involves placing a small electrode on the outer ear to deliver a mild electrical pulse. The goal is to stimulate branches of the vagus nerve, a major component of the parasympathetic nervous system which acts as a counterbalance to the “fight-or-flight” response. The hypothesis was that calming this overactive system could reduce the extreme physical and emotional reactions to trigger sounds. For more on the basics of this technique, you can read our overview on Transcutaneous Vagus Nerve Stimulation for Misophonia Relief.

Study Methodology: A Month-Long Intervention

The patient was a 64-year-old woman with long-standing, severe misophonia. Her primary trigger was the sound of a basketball being bounced rhythmically nearby, which provoked acute anxiety, palpitations, a choking sensation, dyspnea, and an overwhelming urge to flee. She was already on a stable dose of sertraline, an SSRI antidepressant sometimes used for misophonia, which had not fully controlled these acute reactions.

She underwent a protocol of bilateral taVNS, meaning both ears were stimulated simultaneously. The stimulation was delivered daily for 60 minutes at an intensity she found noticeable but not painful. The protocol lasted one month. Researchers measured outcomes using the Duke Misophonia Questionnaire and scales for psychological distress, anxiety, depression, sleep, and functional impairment at three points: before treatment, immediately after the month-long protocol, and one month after treatment ended.

Substantial Symptom Reduction, But a Complicated Recovery

A Dramatic Drop in Misophonia Severity

The primary finding was a profound reduction in misophonia symptoms. The Duke Misophonia Questionnaire Symptoms Composite Scale score fell from a baseline of 80 to 9 post-treatment, and remained low at 5 at the one-month follow-up. This indicates the symptom relief was not only dramatic but also sustained. Scores measuring overall psychological distress, somatization, anxiety, hostility, and depressive symptoms also improved significantly.

A Disconnect Between Symptoms and Function

However, the results revealed a nuanced picture. While the patient’s direct reaction to trigger sounds lessened, her perception of how the condition impacted her daily life followed a different path. Self-reported functional impairment decreased right after treatment but increased again at the one-month follow-up. This suggests that even as the raw, physiological terror subsided, the patient’s confidence in navigating previously avoided situations or the lingering psychological impact of years of suffering may not have fully resolved. This dissociation between symptom reduction and functional recovery is an important consideration for any misophonia therapy. The complex relationship between sound sensitivity and life participation is also explored in our article on Misophonia and Stress in Healthcare Students.

Sleep Improvements Were Temporary

Sleep quality improved after the treatment month but returned to baseline levels by the follow-up assessment. This indicates that any positive effect of taVNS on sleep in this patient was not lasting once daily stimulation stopped.

Practical Implications and Future Research

This single case report, available with full details via its DOI, is expressly preliminary. The authors, Proietti, Marano, and Rizzo, state it is purely hypothesis-generating. Nevertheless, it provides a compelling rationale for further research into neuromodulation for misophonia, particularly for patients whose symptoms are defined by acute autonomic hyperarousal resembling a panic attack.

For patients and clinicians, this case highlights that the autonomic nervous system is a legitimate target for intervention. It also underscores that successful treatment may need to address two layers: the immediate physiological reflex to sound and the broader functional and psychological adaptations that develop over time. Future controlled studies will need to determine optimal stimulation parameters, treatment duration, and which patient profiles are most likely to benefit. The potential of nerve stimulation for hearing-related conditions is a growing area of interest, as noted in our review of Cervical Stimulation Effects on Hearing Disorders.

In summary, bilateral taVNS presented a feasible and well-tolerated adjunctive intervention in this severe case, with a striking effect on core symptoms. Its role as a potential therapy, however, remains to be formally tested.