Figure 6.

Wave I amplitude evoked by 4,000 Hz tone burst was reduced in high-risk TTS group (those reporting “sometimes,” “often,” or “always” having auditory symptoms following exposure to noise) compared with low-risk group (participants who reported “never” or “rarely” having auditory symptoms following exposure to noise) when assessed using Tiptrode electrodes. There were no reliable differences when the responses were assessed using the earlobe electrode placements. ABR, auditory brainstem response; TTS, temporary threshold shifts.