Original Articles
A Comparative Study on Emotional Prosody in Patients with Broca’s and Wernicke’s Aphasia | |
PuranjitKar, Ratul Dey, Satish Kumar, Tijender Kumar | |
Prosody, the rhythm, stress and intonation of speech provides important information beyond literal meaning of a sentence. Belyk& Brown (2013) functionally distinguished two forms of prosody, namely linguistic prosody and emotional (affective) prosody.Prosody has three main physical parameters; fundamental frequency (F0), duration, and amplitude. As stated in different literatures, patients with both Broca’s and Wernicke’s aphasia exhibit dysprosodic features in their speech. The aim of the present study is to compare the production of emotional prosody in patients with Broca’s aphasia and Wernicke’s aphasia. A total of 10 Punjabi speaking aphasic participants between age group 50 to 65 years with mean age of 58.4 years were included in the present study. They were divided into two groups: Group I consisted of five patients with Broca’s aphasia and Group II consisted of five patients with Wernicke’s aphasia. Praat software version 5.2.01 was used for acoustic analysis of speech samples of all the participants. To analyse emotional prosody, two frequency related parameters (average F0, F0 slope), two intensity parameters (average intensity and maximum intensity) and duration of sentence parameters were considered. The results revealed that patients with Broca’s aphasia exhibited higher mean values of F0, higher utterance duration and lower amplitude as compared to those with Wernicke’s aphasia which is indicates that patients with Broca’s aphasia exhibit more dysprosodic components than that of Wernicke’s aphasics in their speech. |
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