title: [Methodologic effects in somatosensory evoked potential diagnosis (stimulus frequency, filter, stimulation and recording site)].
abstract: The importance of the parameters stimulation rate, filter, stimulation- and recording place is presented; thus, a reduction in the low-pass filter frequency produces an increase in latency and an increase in the high-filter a decrease in latency of all SEP-components. A proper choice of the filters leads to a selection of the relevant signals; in a topic classification of the SEP generator the referential electrode must in any case be taken into consideration.
mesh_terms: D000344:Afferent Pathways / Q000503:physiopathology; D001921:Brain / Q000503:physiopathology; D002493:Central Nervous System Diseases / Q000175:diagnosis* / Q000503:physiopathology; D004558:Electric Stimulation / Q000379:methods; D004569:Electroencephalography / Q000379:methods; D005073:Evoked Potentials, Somatosensory; D006801:Humans; D010525:Peripheral Nerves / Q000503:physiopathology; D013116:Spinal Cord / Q000503:physiopathology; D009435:Synaptic Transmission
vernacular_title: Methodische Einflüsse bei der SEP-Diagnostik (Reizfrequenz, Filter, Stimulations- und Ableiteort).