Event-related auditory potentials (P300) in cochlear implant users

被引:0
作者
Mühler, Roland [1 ,2 ]
Ziese, Michael [1 ]
Von Specht, Hellmut [1 ]
机构
[1] Abt. Exp. Audiologie/Med. Physik, Otto-von-Guericke-Univ. Magdeburg, Magdeburg
[2] Otto-von-Guericke-Univ. Magdeburg, Abt. Exp. Audiologie/Med. Physik, D-39120 Magdeburg
来源
Zeitschrift fur Medizinische Physik | 2003年 / 13卷 / 02期
关键词
Cochlear Implant; Event-related potentials; P300;
D O I
10.1078/0939-3889-00146
中图分类号
学科分类号
摘要
Event-related auditory evoked potentials can contribute to the evaluation of discrimination abilities of cochlear implant users. Auditory P300 potentials to a frequency contrast were obtained in six post-lingually deaf adults using a cochlear implant and in a control group of normal hearing subjects. The aim of this study was to investigate how these potentials were determined by the stimulation pattern of the cochlear implant. To visualise these stimulation patterns colour-coded plots (stimulograms) were calculated based on the stimulus and the fitting fite of the individual subject as inputs. These stimulograms were used to evaluate the influence of various stimulation parameters on the stimulation contrast used in an oddball paradigm. The influence of discrimination difficulty on the P300 response is demonstrated.
引用
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页码:84 / 90
页数:6
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