Volume 18, Issue 3 (September 2020)                   Iranian Rehabilitation Journal 2020, 18(3): 337-344 | Back to browse issues page

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Kasefy S, Torabinezhad F, Rasouli M, Zareifaskhodi B, Saffarian A. The Relationship Between Acoustic Characteristics and Personality Dimensions in Patients With Dysphonia. Iranian Rehabilitation Journal. 2020; 18 (3) :337-344
URL: http://irj.uswr.ac.ir/article-1-1120-en.html
1- Department of Speech and Language Pathology, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran.
2- Department of Biostatistics, School of Public Health, Iran University of Medical Sciences, Tehran, Iran.
3- Department of General Psychology, Karaj Branch, Islamic Azad University, Karaj, Iran.
Abstract:   (439 Views)
Objectives: Voice is influenced by personality. However, it is still questionable which acoustic features are influenced by personality traits. This study aimed to investigate the relationship between acoustic characteristics and personality dimensions.
Methods: Thirty-three participants with dysphonia and 33 participants without dysphonia were recruited to take part in this cross-sectional study. Personality dimensions were evaluated by the revised NEO personality inventory, and acoustic characteristics by using the Praat software. The tasks included prolongation of the vowel /a/, expression of declarative and interrogative sentences, reading, and connected speech. The acoustic features included fundamental frequency range, jitter, shimmer, harmonic-to-noise ratio, intensity, and duration. SPSS V. 23 was used for statistical analysis. For correlation analysis, the Pearson and Spearman correlation coefficients were employed.
Results: In individuals with dysphonia, a significant relationship was observed between personality dimensions and the following acoustic features: A. extraversion and intensity in connected speech (P=0.045) and the reading task (P=0.036); B. openness and shimmer in /a/ vowel prolongation (P=0.003); C. openness and the harmonic-to-noise ratio in /a/ the vowel prolongation task (P=0.017); and D. agreeableness and duration in expressing interrogative sentences (P=0.019).
Discussion: In Persian-speaking participants with and without dysphonia, some acoustic characteristics were significantly correlated with the mean score of the personality test (revised NEO personality inventory). It seems that each voice feature is influenced by personality dimensions. This finding indicates that changes in acoustic characteristics of voice due to personality can be evaluated in laboratory and hearing examinations.
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Article type: Original Research Articles | Subject: Speech therapy
Received: 2020/01/4 | Accepted: 2020/09/30 | Published: 2020/09/30

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