Frequency modulation detection as a measure of temporal processing: Age-related monaural and binaural effects

► Diotic FM detection was superior to monaural detection irrespective of listener age. ► Dichotic FM detection was superior to diotic detection irrespective of listener age. ► Dichotic FM performance differentiated between younger, mid-aged, and older listeners. ► Older listeners did not exhibit dichotic benefit when the presentation levels were markedly asymmetric.