کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9436468 1615693 2005 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Unraveling the electrically evoked compound action potential
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی سیستم های حسی
پیش نمایش صفحه اول مقاله
Unraveling the electrically evoked compound action potential
چکیده انگلیسی
With the advent of eCAP recording tools such as NRT and NRI for cochlear implants, neural monitoring has become widely used to ascertain the integrity of the neural/electrode interface as well as for assisting in the setting of program levels. The basic concepts of eCAP recordings are deduced from the acoustical equivalent of the electrocochleogram. There are, however, indications that under electrical stimulation some of these do not hold, like the unitary response concept (i.e., the principle that every fiber produces the same contribution to the eCAP). Computer modeling has proven to be a valuable tool for gaining insight into the functioning of electrical stimulation. In this study the extension of a three-dimensional human cochlea, incorporating back-measuring capabilities, is described. Using this new model, the contribution of single fiber action potentials (SFAPs) to the measured eCAP is investigated. The model predicts that contrary to common belief - the compound action potential as measured by the cochlear implant system does not necessarily reflect the propagated action potential along the auditory nerve.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Hearing Research - Volume 205, Issues 1–2, July 2005, Pages 143-156
نویسندگان
, ,