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. Author manuscript; available in PMC: 2017 Feb 15.
Published in final edited form as: Hear Res. 2008 May 28;243(1-2):28–34. doi: 10.1016/j.heares.2008.05.008

Fig. 1.

Fig. 1

An example showing styrene-induced OHC loss in the third row without effect on cochlear sensitivity. (A): Surface preparation from the middle turn (about 50% distance from the apex) in the cochlea (right). Missing OHCs in the third row are marked by “3”, in the second row by “2”, and in the first row by “1”; (B): Missing OHCs by row as a function of % distance from the cochlear apex; (C): CAP I/O function at 12 kHz (filled circles), which is related to the center of the injured region (45% from the apex). Opened circles are controls. The dashed line at linear I/O (i.e., 1-dB increase of stimulation yields 1-dB increase in CAP amplitude); (D): CAP threshold shift as a function of frequency. The shaded area indicates the injured region in this cochlea. Styrene exposure: by gavage at a dose of 400 mg/kg, 1/day for 5 days per week for 3 weeks.