ABSTRACT
Objective To study the phonological characteristics and rehabilitation training methods of abnor-mal blade-alveolar consonants in children with functional articulation disorders(FAD).Methods A total of 150 children of 4 to 25 years old with blade-alveolar consonant articulation disorders were selected from 194 children di-agnosed with FAD as the research objects.The phonological characteristics of abnormal blade-alveolar consonants were analysed;30 children of 4 to 17 years old accepted speech therapy,exhaling training and functional treatment of blade-alveolar consonants (/d/,/t/,/n/,/l/).Patients were given speech assessments in the first and last training by using computer speech lab.Results The occurrence rate of abnormal blade-alveolar consonant was 77.32%(150/194);the error rate of/l/was 82.0% which was the highest;/d/was mainly substituted by/j/,and/t/was mainly substituted by/q/,/d/.Both/l/and/n/mainly showed omission.Males accounted for 82.35%(98/119) and females accounted for 80.65%(25/31)among substitution cases.Males accounted for 80.67%(96/119)and fe-males for 90.32%(28/31)among omission cases.The number of incorrect words decreased to (6.30±2.72)after speech training from(50.60±9.04)before speech training was established.The differences were statistically signifi-cant(Z= -4.875,P<0.05).The number of erroneous words was negatively correlated with age (r= -0.736,P<0.01).Conclusion Blade-alveolar consonant articulation disorders occur mainly on/d/,/t/,/l/,and the main erro-neous articulation patterns are substitution and omission.The training scheme and training methods established in this study are significantly effective.
