不同视听提示方式对学龄前听障儿童嗓音基频的影响

Different Audio Visual Cues after the MSF0 of Preschool with Hearing Impaired

目的探讨不同视听提示方式对学龄前听障儿童嗓音基频的影响,为其言语矫治提供参考。方法选取4～6岁康复效果优良的听障儿童及性别、年龄相匹配的正常儿童各15例,分别在单一听觉提示和视听结合提示下,以悲伤、高兴、平静语调说"我和妈妈去学校",记录其平均言语基频(mean speaking fundamental frequency,MSF0),采用2×2×3混合实验设计,分析不同提示方式对其MSF0的影响。结果无论在听觉提示和视听结合提示下,听障儿童与正常儿童之间MSF0差异无统计学意义(P>0.05),提示方式对听障儿童的MSF0无显著影响(P>0.05);但提示语调对听障儿童的MSF0有极显著影响(P<0.01),其中MSF0由高到低的顺序为高兴时>平静时>悲伤时;正常儿童不同语调之间的基频差值显著高于听障儿童(P<0.05);两组儿童不同语调之间基频差值均存在极显著差异(P<0.01)。结论不同语调的视听提示对康复优良的听障儿童音调和音调变化有一定影响,可为其音调异常矫治提供一定指导。

Objective In this study,we discussed the effects of different audiovisual cues on the pitch of hearing impaired preschoolers,providing possible methods for their speech rehabilitation.Methods A total of 15 well-rehabilitated hearing impaired children,aged at 4~6 years,were involved in the study.Another 15 children with normal hearing and similar gender and age distribution were taken as control.All the children were required to repeat the sentence of"I go to school with my mom"in sad,happy and calm tones under both auditory and audiovisual cues.The MSF0s were recorded and analyzed.Results There were no significant differences in MSF0s between hearing impaired and normal children neither under auditory nor audiovisual cues(P>0.05).However,different tone cues significantly affected the MSF0 in hearing impaired children(P<0.01).The highest MSF0 were recorded in the happy tone while the lowest in the sad tone.The MSF0s in normal hearing children were significantly higher than those in hearing impaired ones under different tones(P<0.05).Conclusion The different tones in audiovisual cues significantly affect the pitch and pitch changing in hearing impaired children,which may help for the pitch therapy in hearing impaired children with good inhabilitation.