Mhammad Hadi Fallahi; Marzieh Yarizadeh
Abstract
The aim of this research was to study language functions of the right hemisphere of the brain in the left hemisphere–damaged patients and compare them with healthy people. In this research, which is kind of Descriptive-Analytical, upon random sampling, two groups of the left hemisphere–damaged ...
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The aim of this research was to study language functions of the right hemisphere of the brain in the left hemisphere–damaged patients and compare them with healthy people. In this research, which is kind of Descriptive-Analytical, upon random sampling, two groups of the left hemisphere–damaged patients (20 men &10 women) were selected among people referred to Imam Reza Neuro Clinic, as well as 30 healthy people. Then tests of Right Hemisphere Language Collection (Brian, 1995) and test of Application Acts &Competency of Language (Mehri, 1381) were used, to compare patients' language functions with those of healthy people. The results of the research were analyzed. Analysis of data includes two parts: Descriptive Statistics and Inferential Statistics. The results of the research show that there are no significant differences between healthy and damaged people in view of sex, but there are significant differences between healthy and damaged people in 1-Metaphire test, 2-Written Metaphor test, 3-Comprehension of inferred meaning, 4-Appreciation of humor, 5-Lexical-semantic test, 6-Methapor production test, 7-Written proverb test, 8-Proverb production test, 9-Indirect speech acts test. These results indicate that abilities are not specific to the right hemisphere because people whose left hemisphere is damaged suffer from these disorders, too.
Zahra Navab Safavi; Mohammad Hadi Fallahi; Mohammadreza Ghadimi Fomani
Abstract
The present study, in the context of computational linguistics and acoustic phonetics, attempted to determine the acoustic features of glottal stop before the word initial vowels in the Persian language and to answer the question whether this sound is a consonant or is the characteristic of the initial ...
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The present study, in the context of computational linguistics and acoustic phonetics, attempted to determine the acoustic features of glottal stop before the word initial vowels in the Persian language and to answer the question whether this sound is a consonant or is the characteristic of the initial vowel in the Persian. The research test groups consisted of three groups: (a) nonword group in which the vowel is located after a consonant except glottal stop, (b) nonword group in which the presence of glottal stop is clear before the vowel, and (c) the group containing 30 words of Farsi language which begin with vowels. The three groups were read and recorded by 16 sample members at the studio. Then, they were subjected to acoustic measures, duration, first formant, intensity and spectral tilt of vowels evaluation using The Praat software. The numerical values obtained were analyzed based on mean indices, variance and Scheffe test. It was found that the criteria for the existence of the glottal stop consonant in the word group were not verified; as a result, the complete stop that has the acoustic characteristics of a consonant does not exist before the word initial vowels in the Persian language. Therefore, the incomplete obstruction can be taken as the phonetic process that is added at the beginning of the initial vowel production, and it makes that vowel glottalized.
