Psychophysiological aspects of noise exposure in the context of shift work

[M. V. Veljković]

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Biografija autora: list 272 Bibliografija: listovi 214-265

Psychophysiology of work

The main goal of the doctoral dissertation was to examine the model of the relationship between predictors (circadianity and noise exposure) and criteria (perceived stress, noise disturbance and job satisfaction) with the possible mediation of noise sensitivity and sleep quality, in the context of shift work. For this purpose, one of the models of moderated mediation was used, which served as a starting point for determining individual relationships between the subjects of measurement. The research was conducted on a sample of 468 workers. The sample type is convenient. It included respondents of both sexes, of different ages and length of service, with different qualifications, who work in different shift work regimes. The following instruments were used: Objective noise measurement - phonometer (model Bruel and Kjaer - BK 2250), Morningness - Eveningness Questionnaire - MEQ, Weinstein's Noise Sensitivity Scale - WNSS, The Pittsburgh Sleep Quality Index - PSQI; Perceived Stress Scale - PSS-10, Numeric and verbal noise annoyance scale and Index of Job Satisfaction, IJS. The research was conducted in the chemical and metallurgical industry in Leskovac, Niš and Prahovo. The results confirmed the main hypothesis of the doctoral dissertation, based on theoretical and empirical data. Namely, the presented model confirms that the variables circadianity and noise exposure have a predictive value for the criterion variables perceived stress, noise disturbance and job satisfaction, with the effect of mediators - sensitivity to noise and sleep quality. The obtained results emphasize the extreme importance of noise as a factor that directly affects the level of stress among industrial workers. Belonging to the circadian type has significant implications for both individuals and organizations when it comes to stress management. The difference in the effect of the circadian rhythm on sensitivity to noise, sleep quality and job satisfaction between workers in fixed and variable shifts lies in the ability of the organism to adapt and synchronize with working hours.

Buka, smenski rad, cirkadijalni ritam, stres, kvalitet spavanja, zadovoljstvo poslom

Noise, shift work, circadian rhythm, stress, sleep quality, job satisfaction

159.91:331.432(043.3)

S 260

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