Study On Tone Expression Of Pu Tong Hua And Cantonese In The Patients With Cerebral Damage

Objective: To study the characteristics of Pu Tong Hua and Cantonese tone expression and to explore the cerebral lateralization and localization of Chinese tone expression. Method: The patients with initial unilateral hemisphere damage were examined with Aphasia Battery of Chinese (ABC) and Chinese word reading in Pu Tong Hua or Cantonese. The tone samples were divided into 4 parts according to different speech functions: spontaneous speech, serial number, repeating and reading, Which were analyzed through auditory judgment and WinCECIL software Comparing left hemisphere damage group (55 cases, including 23 cases in non-fluent aphasia group> 12 cases in fluent aphasia group and 20 cases in non-aphasia group) with right hemisphere damage group (20 cases) and normal control group (20 cases). Result: (1) There was no obvious difference in tone expression between Pu Tong Hua and Cantonese patients (P>0. 05); (2) The false tone expressionof left or right hemisphere damage group was more frequent that of than normal control group(P<0.05), and there was no difference of false tone expression in left hemisphere damage group as compared with that in right hemisphere damage group (P>0. 05); (3) The false tone expression of left hemisphere damage non-fluent aphasia group was more frequent than that of left hemisphere damage fluent aphasia group, left hemisphere damage non-aphasia group or right hemisphere damage group(P<0. 05); but no difference between left hemisphere damage fluent aphasia group left hemisphere damage non-aphasia group and right hemisphere damage group(P>0.05); (4) The false tone expression was centralized in repeating and reading in Pu Tong Hua and Cantonese; (5) the false tone category was centralized in yangping and shangsheng in Pu Tong Hua, but no significant difference in Cantonese. Conclusion: In Pu Tong Hua and Cantonese, tone expression is related to speech expression function, and tone expression disturbance is related to the type and location of aphasia; Tone expression have no obvious lateralization in left or right hemisphere; It might be a mutual participation of both hemospheres.