TY - JOUR A1 - Obando-Leitón, Miguel A1 - Dietze, Anna A1 - Castañeda González, Carmen M. A1 - Saeedi, Ali A1 - Karg, Sonja A1 - Hemmert, Werner T1 - On the Effect of High Stimulation Rates on Temporal Loudness Integration in Cochlear Implant Users JF - Trends in Hearing N2 - 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. UR - https://doi.org/10.1177/23312165231207229 Y1 - 2023 UR - https://doi.org/10.1177/23312165231207229 UR - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:573-43749 SN - 2331-2165 VL - 27 PB - SAGE CY - London ER - TY - CHAP A1 - Hemmert, Werner A1 - Bai, Siwei A1 - Encke, Jörg A1 - Karg, Sonja A1 - Keller, Stefanie A1 - Nicoletti, Michele A1 - Obando-Leitón, Miguel A1 - Rudnicki, Marek A1 - Völk, Florian A1 - Weiß, Robin A1 - Wirtz, Christian A1 - Zirn, Stefan T1 - Modellbildung der neuronalen auditiven Verarbeitung kombiniert mit Psychoakustik als Werkzeug in der Hörimplantatforschung T2 - Tagungsband, DAGA 2018 - 44. Jahrestagung für Akustik, 19.-22. März 2018, München Y1 - 2018 UR - https://pub.dega-akustik.de/DAGA_2018/data/index.html SN - 978-3-939296-13-3 SP - 1495 EP - 1498 PB - Deutsche Gesellschaft für Akustik e.V. (DEGA) CY - Berlin ER -