Figure 7.

Total number of tracks completed in each measure, including an initial practice track not included in the final threshold calculation and at least three test tracks. Additional tracks were added as needed to obtain a reliable threshold estimate. TFS-LF = TFS–low frequency (interaural phase difference detection); TFS-1 = frequency shift detection; GD = gap discrimination; ITD = interaural time difference; FM-M = FM detection–monaural; FM-D = FM detection–diotic; FM/FM = FM detection–dichotic; N0S0 = homophasic tone detection in noise; N0Sπ = antiphasic tone detection in noise.