Figure 1.

Normal hearing (NH) and conductive hearing loss (CHL) juveniles display similar frequency modulation (FM) detection thresholds. Average FM detection thresholds (log₁₀Hz; mean ± SEM) are plotted for NH juveniles (black bar, gray circles) and CHL juveniles (red bar; light red circles). Data points from individual animals are the average of the best 3 days of performance. Open circles indicate 4 days of perceptual training, and closed circles indicate 10 days of perceptual training. Insets: Example psychometric function fits from one NH juvenile and one CHL juvenile, taken from a single day of testing.