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4. Association Between Noise-Induced Hearing Loss and Vestibular Dysfunction in Workers Chronically Exposed to Occupational Noise

Author

Nadri, Hamed, Khavanin, Ali, Kim, In-Ju, Akbari, Mehdi, Nadri, Farshad, and Yeganeh, Reza

Subjects
Noise control -- Investigations, Textile workers -- Investigations, Hearing loss -- Risk factors, Company legal issue, Environmental issues, Health
Abstract

Background: Despite the understanding of the association between noise exposure and noise-induced hearing loss (NIHL), the effects of noise on vestibular function are less well understood and neglected. Aim: The aim of this study was to investigate the function of the vestibular system in workers with NIHL. Materials and Methods: Thirty male textile workers with symmetrical NIHL (49.3 ± 4.5 dB at 4 kHz) and thirty healthy male textile office staff with normal hearing were included in this study. Pure tone audiometry using air conduction and bone conduction was used to determine hearing thresholds. The videonystagmography battery test, including the oculomotor test, caloric test, and video head impulse test (vHIT), was used for the evaluation of vestibular system function. Results: There was no difference in saccadic tracking, smooth pursuit tracking, and optokinetic nystagmus between the two groups. It was found that the abnormal vHIT was significantly higher in workers with NIHL (40%) than in the control group (3.3%). In addition, the abnormal caloric test was significantly higher in workers with NIHL (33.3%) than in the control group (0%). The association between the hearing thresholds of 3, 4, 6, and 8 kHz and vestibular dysfunction was significant. Conclusion: This study provides evidence of the simultaneous occurrence of NIHL and vestibular dysfunction. In other words, the results support the role of noise as a risk factor for the development of vestibular dysfunction in textile workers. Keywords: Noise-induced hearing loss, vestibular dysfunction, video head impulse test, Videonystagmography, Author(s): Hamed Nadri [1]; Ali Khavanin [2]; In-Ju Kim [3]; Mehdi Akbari [4]; Farshad Nadri (corresponding author) [5]; Reza Yeganeh [1] INTRODUCTION Cochlear damage, also referred to as noise-induced hearing [...]

Published
2024
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29. The linkage between negative affectivity with emotional distress in college student: The mediator and moderator role of difficulty in emotion regulation, repetitive negative thinking, and emotional invalidation

Author

Mohammadkhani, Shahram, Attar, Faraz, and Akbari, Mehdi

Subjects
College students -- Psychological aspects -- Health aspects, Emotion regulation -- Health aspects, Stress (Psychology) -- Risk factors, Psychology and mental health
Abstract

The purpose of the present study was to determine the mediator and moderator roles of difficulty in emotion regulation (DER), repetitive negative thinking (RNT), and emotional invalidation (EI) in the relationship between negative affectivity (NA) and emotional distress. 384 students of University completed the Difficulties in Emotion Regulation Scale (DERS), Repetitive Negative Thought Questionnaire (RNTQ-10), The Perceived Invalidation of Emotion Scale (PIES), the short version of Adult Temperament Questionnaire (ATQ), and also depression, anxiety and stress questionnaire (DASS-21). The data was then analyzed by AMOS and SPSS software, using the path analysis method. The results of SEM indicated that the Conceptual model of the current study is in a good fit with observed values (CFI = 0.997Ø NFI = 0.998Ø RMSE = 0.077). Path analysis showed that negative affectivity can predict anxiety and depression in both direct and indirect ways with the mediating role of difficulty in emotion regulation and repetitive negative thinking. Furthermore, emotional invalidation moderates the relationship between negative affectivity and emotion regulation. An individual's mood traits and emotional invalidation have been shown to work together to cause anxiety and depression through difficulty in emotion regulation. Furthermore, negative affectivity (NA) Predisposes individuals to be trapped in a repetitive negative thinking cycle which makes them vulnerable to anxiety and depression., Author(s): Shahram Mohammadkhani [sup.1] , Faraz Attar [sup.1] , Mehdi Akbari Author Affiliations: (1) grid.412265.6, 0000 0004 0406 5813, Department of Clinical Psychology, Faculty of Psychology and Education, Kharazmi University, [...]

Published
2023
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