Bifid responses are common with respect to evoked potentials. Visual evoked potentials frequently show this phenomenon (Jones and Blume, 1985; Marra, 1990; Rouseff et al., 2005) but are rarely seen in physiologically normal individuals. Their presence often indicates a demyelinating process like multiple sclerosis. Another reason for their presence in visual evoked potentials is interference from a P135 waveform, which is a peripheral half field component (American Clinical Neurophysiology Society, 2006) superimposing onto the visual evoked potential waveform (Halliday, 1993).
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Σάββατο 19 Νοεμβρίου 2016
Ocular vestibular evoked myogenic potentials and the importance of the bifid response
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