Table 4 Mean 75% ITD discrimination thresholds in µs, estimated from the slopes of the psychometric curves (see Methods) and averaged over all animals (N) tested at the corresponding stimulus condition.

From: Interaural time difference sensitivity under binaural cochlear implant stimulation persists at high pulse rates up to 900 pps

75% threshold

at 50 pps

at 300 pps

at 900 pps

at 1800 pps

Rectangle

43.2 (N = 14)

34.6 (N = 16)

50.5 (N = 16)

401.5† (N = 8)

Hanning

40.5 (N = 10)

61.8 (N = 10)

62.0 (N = 10)

3575.8† (N = 6)

  1. Note that the values shown for 1800 pps (marked †) are estimated by extrapolation well beyond the tested range. While we can be confident that thresholds at 1800 pps will be much larger than thresholds for ≤ 900 pps, our data does not permit an accurate estimation of 75% thresholds for 1800 pps, so the values shown here should not be taken at face value.
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