Objective To investigate the influence of speech rate variations on speech recognition of preschool children with cochlear implant(CI)under different verbal cue conditions,providing a scientific basis for their postopera-tive speech rehabilitation.Methods Sixteen eligible preschools with CI were enrolled to undergo open-set speech recog-nition tests under different verbal cue(audiovisual-AV,vision-only-VO,and auditory-only-AO)and speech rates(slow,normal,fast),resulting in nine assessment conditions.SPSS 26.0 software was used for statistical analysis.Re-sults There were statistically significant interaction effects between verbal cues and speech rate(F=3.517,P=0.012,partial η2=0.190).Further analysis revealed that:in conditions with linguistic cues AV,AO,and VO,the recognition scores at fast speech rate decreased significantly compared with normal speech rate(P＜0.05).When auditory cues were present,as in AV(P=0.459)and AO(P=0.307),the mean scores between slow and normal speech rate were not signifi-cantly different,while in VO condition,slow speech rate was significantly higher than normal speech rate(P=0.028).Under the three speed conditions,the speech performance of VO was lower than that of AV(P＜0.05)and AO(P＜0.05).At fast(P=0.743)and normal(P=0.113)speech rates,there was no significant difference in scores between the AV and the AO;However,when the speech rate was reduced to slow,the recognition score of AV was significantly better than that of the AO(P=0.006).Conclusion Language cues and speech rate significantly affect speech perception in children with CI,and there is an interaction between the two,but not an independent influence.Integrating audiovisual cues can facilitate speech recognition in CI children,and the role of auditory cues is particularly critical.The impact of speech rate is diminished when auditory cues are sufficient,conversely,an increase in speech rate can exacerbate the negative in-fluence on speech recognition when auditory cues are lacking.Therefore,the influence of language cues and speech tare should be fully considered in the postoperative rehabilitation and evaluation of CI children.
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