Table 2

Comparison with other published works

Hancock et al. (2010)Hancock et al. (2013)Thompson et al. (2021)Chung et al. (2019)This work
SpeciesCatsCatsCatsRabbitsRats
Deafening procedureCongenitally deafCongenitally deafNeonatal deafening (neomycin sulfate)Neonatal deafening (neomycin sulfate)Neonatal deafening (kanamycin)
Approaches for implant insertionRound windowRound windowRound windowRound windowCochleostomies
Electrodes8-ring electrode array8-ring electrode array8- or 14- ring electrode array8-ring electrode array4 independent electrodes
Stimulus configurationWide bipolaraWide bipolaraWide bipolaraWide bipolaraScala tympani and scala vestibuli electrodes pair
Pulse rates (pps)10–8010–804020–128020–1280
Phase duration and interphase gap (μs)50/050/0100/5050/040/0
Analysis metric of ITD sensitivitySTVR
(F test, p < 0.025)
STVR
(F test, p < 0.025)
STVR
(F test, p < 0.025)
STVR
(F test, p < 0.01)
STVR
(F test, p < 0.01)
Incidence of ITD sensitivity (no. of units)48% (114)53% (139)56% (55)62% (66)65% (100)
55% (100)b
  • STVR, the signal-to-total variance ratio.

  • a Between the most apical and most basal intracochlear electrodes.

  • b Only at a pulse rate of 40 pps.