Mühler Roland, Ziese Michael, Kevanishvili Zurab, Schmidt Marcus, von Specht Hellmut
Department of Experimental Audiology, Otto von Guericke University Magdeburg, Magdeburg, Germany.
Ear Hear. 2004 Apr;25(2):186-90. doi: 10.1097/01.aud.0000120366.80555.2a.
Auditory P300 potentials obtained in cochlear implant users were evoked with tone bursts designed to reflect the frequency stimulation patterns of intracochlear electrodes. To visualize these stimulation patterns in MED-EL COMBI 40+ cochlear implants, we calculated color-coded plots of the charge of each stimulus pulse as a function of time and stimulation channel (stimulograms). The aim of this study was to investigate the effect of stimulation patterns on event-related potentials, such as the P300. The influence of electrode separation on the P300 response in postlingually deaf adults using a cochlear implant is demonstrated in two examples.
