Fig. 3.

Experiment 2: Harmonic advantage when discriminating synthetic tones across a delay. (A) Schematic of stimuli and trial structure in experiment 2. (Left) During each trial, participants heard two tones and judged whether the second was higher or lower than the first. Tones were separated by a delay of 0, 5, or 10 s. (Right) Power spectra of 400-Hz tones for Harmonic, Inharmonic, and Interleaved Harmonic conditions. (B) Results of experiment 2, plotted separately for the two difficulty levels. Error bars show SEM.