Figure 2.

Left: Mean (±1 SE) masked thresholds for narrowband noises measured in the speech-shaped masker as a function of frequency for older adults with hearing loss in unaided (filled) and aided (open) conditions. Narrowband noise was always at 0°. The speech-shaped masker was at 0° (circles) or at 90° (triangles). Right: Mean spatial benefit in dB (±1 SE) as a function of frequency for older adults with hearing loss. Each point is the mean threshold with noise at 0° minus thresholds with noise at 90°.