@article{ObandoLeitonDietzeCastanedaGonzalezetal.2023, author = {Obando-Leit{\´o}n, Miguel and Dietze, Anna and Casta{\~n}eda Gonz{\´a}lez, Carmen M. and Saeedi, Ali and Karg, Sonja and Hemmert, Werner}, title = {On the Effect of High Stimulation Rates on Temporal Loudness Integration in Cochlear Implant Users}, volume = {27}, journal = {Trends in Hearing}, publisher = {SAGE}, address = {London}, issn = {2331-2165}, doi = {https://doi.org/10.1177/23312165231207229}, year = {2023}, abstract = {Long stimuli have lower detection thresholds or are perceived louder than short stimuli with the same intensity, an effect known as temporal loudness integration (TLI). In electric hearing, TLI for pulse trains with a fixed rate but varying number of pulses, i.e. stimulus duration, has mainly been investigated at clinically used stimulation rates. To study the effect of an overall effective stimulation rate at 100\% channel crosstalk, we investigated TLI with (a) a clinically used single-channel stimulation rate of 1,500 pps and (b) a high stimulation rate of 18,000 pps, both for an apical and a basal electrode. Thresholds (THR), a line of equal loudness (BAL), and maximum acceptable levels (MALs) were measured in 10 MED-EL cochlear implant users. Stimulus durations varied from a single pulse to 300 ms long pulse trains. At 18,000 pps, the dynamic range (DR) increased by [Formula: see text] dB for the 300 ms pulse train. Amplitudes at THR, BAL, and MAL decreased monotonically with increasing stimulus duration. The decline was fitted with high accuracy with a power law function ([Formula: see text]). Threshold slopes were [Formula: see text] and [Formula: see text] dB per doubling of duration for the low and high rate, respectively, and were shallower than for acoustic hearing. The electrode location did not affect the amplitudes or slopes of the TLI curves. THR, BAL, and MAL were always lower for the higher rate and the DR was larger at the higher rate at all measured durations.}, language = {en} } @inproceedings{HemmertBaiEnckeetal.2018, author = {Hemmert, Werner and Bai, Siwei and Encke, J{\"o}rg and Karg, Sonja and Keller, Stefanie and Nicoletti, Michele and Obando-Leit{\´o}n, Miguel and Rudnicki, Marek and V{\"o}lk, Florian and Weiß, Robin and Wirtz, Christian and Zirn, Stefan}, title = {Modellbildung der neuronalen auditiven Verarbeitung kombiniert mit Psychoakustik als Werkzeug in der H{\"o}rimplantatforschung}, booktitle = {Tagungsband, DAGA 2018 - 44. Jahrestagung f{\"u}r Akustik, 19.-22. M{\"a}rz 2018, M{\"u}nchen}, publisher = {Deutsche Gesellschaft f{\"u}r Akustik e.V. (DEGA)}, address = {Berlin}, isbn = {978-3-939296-13-3}, url = {https://pub.dega-akustik.de/DAGA_2018/data/index.html}, pages = {1495 -- 1498}, year = {2018}, language = {de} }