Table 2.

Parameters of a Sigmoidal Model Estimating the Percentage of Reduction in Pupil Dilation Attributable to Semantic Context.

Group	Maximum (%)	Slope	Shift	Latency (s)
Normal hearing	32.0	1.20	−0.13	−0.79
Normal hearing vocoded	14.2	4.60	1.75	1.94
Cochlear implant	23.4	1.03	0.57	0.29

Note. The last column reflects latency (seconds relative to stimulus offset) to 10% reduction of peak dilation, and is distinct from “shift” which refers to shift of the function midpoint relative to the center of the analysis window.