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. Author manuscript; available in PMC: 2010 Jul 1.
Published in final edited form as: Clin Neurophysiol. 2009 Jun 16;120(7):1352–1363. doi: 10.1016/j.clinph.2009.05.013

Table 1.

Auditory neuropathy subject Information

AN
Subject
ID
AN
Code1
Age Sex Ear
Tested
PTA
Low
PTA
High
1.0 kHz
Threshold nHL
N100
Detection
nHL
#1 AN13 33 F Left 52 10 40 40
#2 AN7 27 M Left 45 18 50 10
#3 AN2 60 F Right 45 30 25 30
#4 AN16 18 F Left 35 20 50 50
#5 AN10 26 M Left 30 5 30 30
#6 AN29 26 F Right 27 5 15 20
#7 AN28 26 F Left 12 25 20 20
#8 AN30 21 M Right 15 13 10 10
Mean or Count 29.6 5F-3M 5L-3R 32.6 15.8 30.0 26.3
Subject ID AN Code1 Psycho-acoustic Gap (ms) Speech Quiet/Noise N100 Latency (ms) at 30 dB SL N100 Amplitude (μV) at 30 dB SL ABR (Wave V) Auditory Neuropathy2 Special Features
#1 AN13 11.0 60/38 SNR=15 143 -5.9 Absent Unspecified
#2 AN7 7.7 85/DNT 138 -3.6 Abnormal (6.6 ms) Unspecified
#3 AN2 15.0 19/3 SNR=15 179 -1.8 Absent Type I Vestibular
#4 AN16 12.0 16/DNT 147 -15.7 Absent Unspecified
#5 AN10 5.0 76/51 SNR=10 117 -3.7 Absent Unspecified
#6 AN29 7.1 21/DNT 157 -1.7 Absent Type I Optic
#7 AN28 5.4 95/DNT 126 -2.7 Absent Type I Optic
#8 AN30 5.8 98/40 SNR=0 113 -3.5 Abnormal (6.4 ms) Type II Temperature Sensitive
Mean or Count 8.6 58.8/33.0 140 -4.8 6 Absent Type I: 3
2 Abnormal Type II: 1
Unspecified:4

ABR = auditory brainstem response. The ABRs were tested on separate occasions whereas psychoacoustic measures were performed on the same day as evoked potential testing. PTA = pure tone average. SNR = signal-to-noise ratio.

1

AN identification codes for subjects tested previously from published studies in our laboratory are included for cross reference. (Note the exception to the subject cross-reference codes in Michalewski, et al., 2005; subjects 2, 3, 4, and 5 in that study correspond to AN7, AN2, AN16, and AN10, respectively.)

2

Type I AN = post-synaptic; Type II AN = pre-synaptic; Unspecified = type not defined. DNT = did not test.