Unveiling the vestibular system's role in anxiety and the promise of electrical vestibular stimulation (VeNS) therapy.

PURPOSE OF THE REVIEW: Generalized Anxiety Disorder (GAD) is a chronic and prevalent psychiatric condition affecting approximately 4.05 % of the global population, with a higher incidence in women and early onset in childhood. GAD is associated with significant mental, emotional, and physical impairments, including insomnia, metabolic syndrome, and other psychiatric comorbidities such as depression. Current treatment options include pharmacotherapy and cognitive behavioural therapy (CBT), face challenges such as side effects, long treatment durations, and accessibility issues. This review explores the role of the vestibular system in anxiety pathophysiology and examines the potential of electrical vestibular stimulation (VeNS) as a novel, safe, and effective treatment option.

RECENT FINDINGS: While the exact pathophysiology of anxiety remains unclear, recent studies suggest that GAD involves complex neurobiological mechanisms, including dysregulated inhibitory neurotransmission, hyperactivity of the amygdala, and impaired connectivity in anxiety-related neural circuits. The vestibular system has been identified as a critical modulator of emotional and stress responses, with vestibular dysfunction being linked to heightened anxiety levels. VeNS, a non-invasive neuromodulation technique, has demonstrated effectiveness in reducing anxiety symptoms by influencing key brain structures, including the amygdala, prefrontal cortex, hippocampus, and locus coeruleus. Clinical trials have shown significant reductions in GAD-7 scores and improvements in sleep and overall quality of life following VeNS treatment.

SUMMARY: ELECTRICAL: Vestibular stimulation (VeNS) has emerged as a promising, non-invasive therapeutic approach for managing GAD. By targeting the vestibular system's extensive neural connections, VeNS modulates anxiety-related brain regions, regulates stress responses, and enhances emotional well-being. Clinical evidence supports its efficacy in significantly reducing anxiety symptoms and improving sleep quality. Given its favorable safety profile and ease of use, VeNS presents a viable alternative or complementary option to conventional pharmacological and psychotherapeutic treatments for anxiety disorders.