Summary of clinical features and click responses for patients with the Tullio phenomenon

PatientSex, ageSymptomatic
ear
Duration
(y)
Sound threshold
frequency (dB (kHz))
p13/n23
@ 75 dB
p13/n23 threshold (dB)
1M, 44L8110 (0.5 )1.1765
2F, 28L11105 (1, 2)0.86<70
3F, 22R1-150 5100 (1)1.04<60
4M, 48R8105 (0.5 )1.12<60
5M, 63L12 1-151 0.97<751-152
6M, 57R181101-153 >1.131-154 <60
L1-150 181101-153 0.271-154 <80
7F, 56L1-150 10110 (0.5, 1) 1-160 77
  • 1-150 Surgical exploration of the middle ear, which in all three cases was normal.

  • 1-151 patient developed oscillopsia with 90 dB stimuli.

  • 1-152 Not tested with clicks of <75 dB intensity.

  • 1-153 Frequency not recorded.

  • 1-154 Tested at 70 dB NHL, following attempted stapediopexy on the left.

  • 1-160 Responded in one of two runs to clicks of 73 dB intensity.

  • Sound threshold=intensities and frequencies required to produce eye movements; p13-n23 @ 75 dB=the peak to peak amplitude of the p13-n23 potential expressed as a ratio of the mean background rectified EMG level; p13-n23 threshold=threshold for evoking these potentials in the ipsilateral sternocleidomastoid muscle.