title: Dissociation of P13-P14 far-field potentials: clinical and MRI correlation.
abstract: P13 and P14 far-field potentials are recorded over the scalp with median nerve stimulation when non-cephalic reference is used to measure somatosensory evoked potentials. The dissociation of these 2 potentials is exceptional. Only 2 cases subsequent to pontine lesions have been described hitherto. We report the case of a 31-year-old woman with a low grade glioma located at the spino-medullary junction who presented a P13-P14 far-field dissociation. This case fully supports the independent nature of the P13 and P14 potential generators.
authors.affiliation: Service de Neurologie, Hôpital Erasme, Brussels, Belgium.
authors.forename: N
authors.initials: N
authors.lastname: Mavroudakis
authors.forename: E
authors.initials: E
authors.lastname: Brunko
authors.forename: X
authors.initials: X
authors.lastname: Delberghe
authors.forename: D
authors.initials: D
authors.lastname: Zegers de Beyl
mesh_terms: D000328:Adult; D001932:Brain Neoplasms / Q000473:pathology / Q000503:physiopathology; D001933:Brain Stem / Q000473:pathology / Q000503:physiopathology; D004558:Electric Stimulation; D004569:Electroencephalography; D005073:Evoked Potentials, Somatosensory / Q000502:physiology*; D005260:Female; D005910:Glioma / Q000473:pathology / Q000503:physiopathology; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D011930:Reaction Time / Q000502:physiology