Hearing does not function in isolation. When the autonomic nervous system (ANS) becomes overactivated, the body enters a state of hypervigilance that can amplify perception of the \u201cphantom sound\u201d<\/b> typical of tinnitus. <\/p>\n
Recent studies have identified objective autonomic markers in people with severe tinnitus, including increased pupil dilation<\/b>, altered facial micro-expressions in response to neutral stimuli<\/b>, and a characteristic \u201cfight-or-flight\u201d response pattern. <\/p>\n
This autonomic imbalance<\/b> is associated with heightened distress, fragmented sleep<\/b> and difficulty maintaining attention<\/b>, reinforcing the connection between tinnitus, stress and ANS dysfunction. <\/p>\n
NESA\u00ae neuromodulation and the autonomic nervous system<\/b> <\/h4>\n
The NESA\u00ae XSIGNAL device delivers very low-intensity biphasic microcurrents (<<10 \u00b5A)<\/b> via electrodes placed on the hands and feet, imperceptibly stimulating afferent and efferent fibres of the autonomic nervous system
Its aim is to restore bioelectrical balance<\/b> and promote autonomic self-regulation<\/b> through a safe, non-invasive stimulus. <\/p>\n
The device holds CE medical certification<\/b>, and its safety has been documented in multiple clinical studies<\/b>, with no significant adverse effects reported after more than a decade of therapeutic use. <\/p>\n
Main neurophysiological effects described:<\/b> <\/p>\n \t\t\t\t\t\t\t\t\t\t\t\t\t\t\t In specialised clinical practice, the NESA\u00ae protocol is often used in combination with hearing assessment, counselling, and sound-retraining or mindfulness exercises.<\/b> <\/p>\n The most frequently reported outcomes include: <\/p>\n Although these observations arise from clinical practice rather than randomised controlled trials, they are consistent with findings in other populations treated with the same technology, such as athletes, who demonstrated normalisation of cortisol profiles and improved sleep latency, with no relevant adverse effects reported.<\/p>\n \ud83d\udc49 Download the complete dossier here<\/a><\/p>\n While the specific physiological mechanisms of NESA\u00ae neuromodulation in tinnitus have not yet been conclusively established<\/b>, current evidence on microcurrent stimulation and autonomic regulation allows the proposal of plausible hypotheses<\/b>: <\/p>\n NESA\u00ae neuromodulation<\/b> is emerging as a promising tool<\/b> in the management of tinnitus and disorders associated with autonomic dysregulation. <\/p>\n However, its definitive validation requires multicentre controlled clinical trials, with comparative groups, longitudinal follow-up, and objective measurements of autonomic function and auditory perception. <\/p>\n Healthcare professionals and research institutions are encouraged to explore this technology, evaluate its potential across diverse clinical contexts, and participate in collaborative studies aimed at consolidating the scientific evidence base<\/b> and optimising neurosensory rehabilitation strategies.<\/b> <\/p>\n \t\t\t\t\t\t\t\t\t\t\t\t\t\t\t Final note:<\/strong> This content is for informational purposes only and does not replace individual clinical assessment or treatment. In cases of tinnitus, referral to specialists in otoneurology or audiology is always recommended. <\/p>\n Biesinger, E., Hesse, G., Probst, T., & Sch\u00e4fer, C. (2025). Retrospective chart review demonstrating effectiveness of bimodal neuromodulation for tinnitus treatment. <\/em>npj Primary Care Respiratory Medicine, 35, <\/strong>29. https:\/\/doi.org\/10.1038\/s43856-025-00837-3<\/a><\/p>\n Lee, S. Y., Han, J. J., Choi, S., Lee, S., & Park, H. (2023). Objective multidisciplinary measurements of sleep and autonomic dysfunction as risk factors for chronic subjective tinnitus. <\/em>Scientific Reports, 13<\/strong>, <\/strong>261. https:\/\/doi.org\/10.1038\/s41598-022-26450-1<\/a><\/p>\n Lin, Y., Zhao, H., & Chen, J. (2025). Objective autonomic signatures of tinnitus and sound sensitivity disorders. <\/em>Science Translational Medicine, 17<\/b>(737), eadp1934. https:\/\/doi.org\/10.1126\/scitranslmed.adp1934<\/a> <\/p>\n Marks, K. L., Martel, D. T., Wu, C., Basura, G. J., Roberts, L. E., Schvartz-Leyzac, K. C., & Shore, S. E. (2022). Different bimodal neuromodulation settings reduce tinnitus symptoms in a randomized clinical trial. <\/em>Scientific Reports, 12<\/b>, 10350. https:\/\/doi.org\/10.1038\/s41598-022-13875-x<\/a> <\/p>\n Moghadam, M. H., Asadi, M., & Darvishi, E. (2025). Exploring the therapeutic potential of bimodal stimulation in tinnitus: A narrative review. <\/em>Annals of Medicine and Surgery, 84<\/b>, 104887. https:\/\/doi.org\/10.1097\/MS9.0000000000000887<\/a> <\/p>\n Probst, T., Pryss, R. C., Schlee, W., & Langguth, B. (2023). The association between stress, emotional states, and tinnitus-related distress: A study of cortisol, BDNF, and hair analyses. <\/em>Frontiers in Aging Neuroscience, 15<\/b>, 1131979. https:\/\/doi.org\/10.3389\/fnagi.2023.1131979<\/a> <\/p>\n Yakunina, N., & Nam, E. C. (2020). Stress and tinnitus: Transcutaneous auricular vagal nerve stimulation.<\/em> Frontiers in Psychology, 11<\/b>, 570196. https:\/\/doi.org\/10.3389\/fpsyg.2020.570196<\/a> <\/p>\n\n
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\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/p>\nClinical results observed<\/b> <\/h4>\n
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Mechanisms that could explain the effect<\/b> <\/h4>\n\n
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Relevance for healthcare professionals<\/b><\/h4>\n
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Next steps and collaboration<\/b><\/h4>\n
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\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/p>\nReferences<\/strong><\/h6>\n