This study was conducted to investigate the differences between auditory brainstem responses--ABR recorded in men with temporary or permanent threshold shifts (TTS or PTS). Behaviorally, the tested ears showed insignificant differences in the hearing thresholds at frequencies in the range 0.25-8 kHz. The latency of waves I, III, V and interwave intervals I-III, III-V, I-V were analysed as functions of stimulus intensity. The comparisons between recordings obtained in groups with TTS and PTS showed significant differences in latencies of wave V at 90 dB nHl only. The latencies of waves I, III and interwave intervals were unaltered.
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Article Synopsis
- - The study examines hearing instability (HI) in Slc26a4-insufficient mice, suggesting that differences in ion homeostasis gene expression and activated macrophages may contribute to the disorder.
- - Researchers conducted auditory tests and compared the results from mice with HI to those without, finding significant changes in gene expression and macrophage activity in the inner ear support cells of the affected mice.
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