Copyright © American Speech-Language-Hearing Association From: The Effect of Advancing Age on Auditory Middle- and Long-Latency Evoked Potentials Using a Steady-State-Response Approach Am J Audiol. 2015;24(4):494-507. doi:10.1044/2015_AJA-15-0036 Legend: Grand average power spectra for each stimulus repetition rate for the 60–79 age group. Black represents the response, and gray represents the estimated background noise. Harmonically related frequency components are shown across all repetition rates. The number of frequency components as a function of repetition rate shows the same trend in the 20–39 and 40–59 age groups. Date of download: 10/21/2017 Copyright © American Speech-Language-Hearing Association