PMC:4630263 / 9189-9915 JSONTXT

{"target":"https://pubannotation.org/docs/sourcedb/PMC/sourceid/4630263","sourcedb":"PMC","sourceid":"4630263","source_url":"https://www.ncbi.nlm.nih.gov/pmc/4630263","text":"For oVEMP testing, the active electrode was placed ~1 cm below the center of the inferior eyelid contralateral to the sound stimulation, with the reference electrode located 15 mm below the active electrode and the ground electrode on the forehead. Patients were tested in a seated position. During the test, patients were asked to look upward to a fixed point 2 m away and 25-30° above the horizontal line. Electromyography (EMG) signals were amplified and band pass-filtered between 30 and 3000 Hz. Sound stimuli were presented through headphones as short tone burst sounds (500 Hz) at a frequency of 5 Hz. In total, 100 stimuli were applied to each ear and repeated twice consecutively at 130 dB normal hearing level (nHL).","tracks":[]}