Research

Our group is exploring the potential of cochlear implant (CI) telemetry, i.e., the assessment of electrical impedances and neuronal responses, to provide insight into the health of the cochlea during and after implantation. In previous studies, we demonstrated the potential of impedance telemetry in estimating electrode insertion depths, eliminating the need for radiation-based position assessment. In addition, we showed an association between impedances and residual hearing in CI patients. By obtaining reliable, objective biomarkers, we aim to contribute to the development of improved assessment methods that can better guide patient care and improve their overall quality of life.

We are developing modern methods to detect hearing impairments in children earlier and more precisely. Direct measurements via hearing implants allow for accurate assessments of the operated ear, quickly, reliably, and without additional burden. At the same time, we are optimizing speech tests to be child-friendly, more comfortable, and significantly faster, while maintaining diagnostic quality. Particularly promising is the evaluation of objective hearing screenings that can be conducted directly in daycares and kindergartens, enabling us to reach children early and easily.

We combine advanced morphometric approaches with computational fluid dynamics simulations, to gain more insight in possible geometry-driven hearing mechanics. Deeper comprehension of cochlear morphology will also help to enhance surgical planning methods for CI surgery and improve CI electrode array designs. 

Tinnitus, i.e., the perception of sound in the absence of an external acoustic stimulus, is a poorly understood symptom. The prevalence of tinnitus is estimated to be 10-15% of the general population and is expected to increase due to demographic developments. In our group, we work on objective methods for tinnitus assessment and classification. These would enable clinicians to quantify treatment outcomes of existing interventions and facilitate the development of novel therapies. One approach to objective tinnitus assessment is the identification of neuronal correlates in electroencephalography (EEG).