Figure 1

Evidence of chronic stimulation from datalogging information collected from the children’s cochlear implant processors. (a) The total average number of hours per day that each child used their cochlear implant (CI) is plotted against duration of CI experience (symbols connected with gray lines). Colours indicate the time points closest to the test time points that datalogs were collected, and the black line indicates the full linear mixed model based on n = 4 and log-transformation of CI use. (b) Average daily CI listening ± SD was predominantly at 50–69 dB A across time points. Datalogs were available for 4 children at all time points. A fifth child (S1) had one datalog at chronic stimulation (n = 5 at this time point). Data from four of the five children were also included in³⁶.