[A dipole localization method in analyzing the auditory brain-stem evoked potential].
The localization of generators of brainstem auditory evoked response (BAER) has been studied in one patient using the method of dipole localization based on the spatial distribution of BAER over the surface of the head. It has been found that in formation of all BAER waves the activity of several generators overlaps. It is especially marked for the peaks I', II', III and III'--their potential distribution can not be described by single-dipole model, thus preventing the defining of their generation site. Distribution of potential for other peaks corresponds to the single-dipole model. The coordinates of the equivalent sources of these peaks are in the vicinity of the auditory structures: I--near the distal part of the auditory nerve, II--near the auditory nerve in the place of its entering the brainstem, V--near contralateral auditory pontine structures, V--near lateral lemniscus while V', VI and VI'--near mesencephalic auditory structures.
Shchekut'ev
G A
GA
Koptelov
Iu M
IuM
D000293:Adolescent; D001921:Brain / Q000503:physiopathology; D001931:Brain Mapping / Q000379:methods*; D003128:Coma / Q000503:physiopathology; D004566:Electrodes; D016057:Evoked Potentials, Auditory, Brain Stem / Q000502:physiology*; D005260:Female; D006801:Humans; D011595:Psychomotor Agitation / Q000503:physiopathology; D012535:Scalp / Q000503:physiopathology
Metod dipol'noĭ lokalizatsii v analize akusticheskogo stvolovogo vyzvannogo potentsiala.