Relationship Between Noise Annoyance and Cognitive Performance in Automotive Workers Exposed to Chronic Noise

Alimohammadi, Iraj; Kanrash, Fakhradin Ahmadi; Abolghasemi, Jamileh; Vosoughi, Shahram; Rahmani, Kazem; Chalak, Mohammad Hossein

doi:10.7888/juoeh.41.375

Cited by 12 publications

(10 citation statements)

References 33 publications

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“…20 Furthermore, it has been reported that the benefits of napping depends on the duration and circadian placement of the nap. 21 Moreover, cognitive performances are influenced by activity or other stimuli, such as physical activity, [22][23][24] light 25 or noise 26 exposure. To the best of our knowledge, no meta-analysis has assessed the benefits of napping on objective cognitive performance during night shifts.…”

Section: Introductionmentioning

confidence: 99%

Napping and cognitive performance during night shifts: a systematic review and meta-analysis

Dutheil

Bessonnat

Pereira³

et al. 2020

Sleep

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Study Objectives To examine the benefits of napping during night shifts on cognitive performance. Methods Medline, Cochrane Library, Science direct, and Embase databases were searched up to July 1, 2019. Cognitive performance during night shifts, both before and following napping or under control conditions (no nap), in working-aged adults, were analyzed by time and by type of cognitive function (executive function, attention, instrumental function, and memory). Estimates were pooled using random-effects meta-analysis. Results A total of 18 articles (6 in real-work and 12 in laboratory) with a total of 494 participants were included. The mean nap duration was 41.6 ± 28.3 min, occurring between 12.00 am and 4.10 am, with a mean time set at 2.12 am. Cognitive performance did not differ at baseline between the groups (effect size 0.02, 95% CI −0.09 to 0.13). There was an overall improvement in performance following a nap compared to the control condition without a nap (0.25, 0.10 to 0.41). Positioning naps early in the night and activity (simulated work tasks) tended to improve cognitive performance (−0.57, −1.16 to 0.002, and 0.082, −0.04 to 0.33, respectively). The improvements were primarily seen 30 min after awakening. Only memory deteriorated immediately after awakening without an overall change in global cognitive performance. Conclusion Napping during night shifts seems to improve cognitive performance. Napping early in the night and activity may benefit cognitive performance over time. Considering lack of data in real work environments, further studies are warranted before preconizing napping during night shifts as a preventive strategy (safety, health, and economic outcomes).

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Section: Introductionmentioning

confidence: 99%

Napping and cognitive performance during night shifts: a systematic review and meta-analysis

Dutheil

Bessonnat

Pereira³

et al. 2020

Sleep

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“…They suggested that hearing loss af-fected the neuro-brain system, which is related to speech. Moreover, a study by Alimohammadi et al (29) on the effects of noise annoyance on cognitive function showed a significant relationship between noise annoyance and cognitive function of workers chronically exposed to noise. The researchers also indicated that noise annoyance was associated with reduced mental performance of the workers, resulting in an increased risk of job errors.…”

Section: Discussionmentioning

confidence: 97%

Study of the Relationship Between Hearing Loss and Cognitive Performance at Chronic Exposure to Noise

Alimohammadi

Kanrash

Vosoughi

et al. 2020

Iran Red Crescent Med J

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Background: Noise is considered as one of the most significant and dangerous physical factors in work environments, and due to the advancement of industries, it has become a threat to physical and psychological health in the current era. In addition to its undesirable effects on the hearing system, noise can have harmful non-auditory effects that may cause physiological disorders and cognitive impairment. Objectives: This study aimed to investigate the relationship between hearing loss and workers’ cognitive performance in an industrial environment. Methods: A total of 300 individuals were enrolled in this study after their informed consent was obtained, and their compliance with the inclusion and exclusion criteria was confirmed. Based on the sound intensity level, the individuals were classified into two groups of exposure to > 85 dB (n = 196) and ≤ 85 dB (n = 104). To measure the individuals’ occupational exposure at an 8-hour equivalent level based on the ISO 9612: 2009 standard, the Testo device (Model CEL-815) was used with the precision of 0.5 dB. The most common weighting that is used in noise measurement is A-weighting. Like the human ear, this effectively cuts off the lower and higher frequencies that the average person cannot hear. The DANPLEX-AS54 device was also used to check audiometry. To investigate the workers’ hearing performance, two psychological tests, namely Stroop and TOL, were used as well. Results: Hearing loss was higher among workers exposed to a sound intensity level of > 85 dB than those exposed to a sound intensity level of ≤ 85 dB, and this difference was significant in all sound level frequencies (NIHL left ear: for ≤ 85 dB: 25.92 and for > 85 dB: 27.49) (NIHL right ear: for ≤ 85 dB: 27.62 and for > 85 dB: 29.50) (P value < 0.05). The results showed a significant positive relationship between cognitive indicators and hearing loss (P value < 0.05). Moreover, the study of cognitive indicators in the two groups revealed that the mean change of cognitive performance indicators was higher among subjects exposed to a higher sound intensity level (P value < 0.05). Conclusions: The results of this study showed that noise-induced hearing loss in work environments had a significant positive relationship with cognitive indicators. In other words, an increase in the hearing loss level would result in changes in cognitive indicators such as number of errors and response time.

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“…Indeed, it should be noted that the mean differences between Active and Sham groups fall within this reliability range at all frequencies tested ( Table 2 ). To this end, it is worth noting that elevated levels of distress and reduced concentration following noisy exposures has shown to affect performance in perceptual tasks which could attempt to explain these subtle differences ( 29 ). Additionally, it has been shown that adaptations to sound perception can occur following high-level acoustic exposure lessening one’s sensitivity, and therefore rendering low-level sounds less detectable following noise (i.e., when post-noise testing was conducted).…”

Section: Discussionmentioning

confidence: 99%

Examining the utility of near infrared light as pre-exposure therapy to mitigate temporary noise-induced hearing loss in humans

Williams,

Minesinger,

Gallagher

et al. 2024

Front. Neurol.

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IntroductionThis study sought to determine the effect of Occupational Safety and Health Administration (OSHA) compliant noise on auditory health and assess whether pre-noise near infrared (NIR) light therapy can mitigate the effects of noise exposure.MethodsOver four visits, participants (n = 30, NCT#: 03834714) with normal hearing completed baseline hearing health assessments followed by exposure to open ear, continuous pink noise at 94 dBA for 15 min. Immediately thereafter, post-noise hearing tests at 3000, 4000, and 6000 Hz and distortion product otoacoustic emissions (DPOAEs) were conducted along with the Modified Rhyme Test (MRT), Masking Level Difference Test (MLD), and Fixed Level Frequency Tests (FLFT) [collectively referred to as the Central and Peripheral Auditory Test Battery (CPATB)] to acquire baseline noise sensitivity profiles. Participants were then randomized to either Active or Sham NIR light therapy for 30 min binaurally to conclude Visit 1. Visit 2 (≥24 and ≤ 48 h from Visit 1) began with an additional 30-min session of Active NIR light therapy or Sham followed by repeat CPATB testing and noise exposure. Post-noise testing was again conducted immediately after noise exposure to assess the effect of NIR light therapy. The remaining visits were conducted following ≥2 weeks of noise rest in a cross-over design (i.e., those who had received Active NIR light therapy in Visits 1 and 2 received Sham therapy in Visits 3 and 4).ResultsRecovery hearing tests and DPOAEs were completed at the end of each visit. Participants experienced temporary threshold shifts (TTS) immediately following noise exposure, with a mean shift of 6.79 dB HL (±6.25), 10.61 dB HL (±6.89), and 7.30 dB HL (±7.25) at 3000, 4000, and 6000 Hz, respectively, though all thresholds returned to baseline at 3000, 4000, and 6000 Hz within 75 min of noise exposure. Paradoxically, Active NIR light therapy threshold shifts were statistically higher than Sham therapy at 3000 Hz (p = 0.04), but no other differences were observed at the other frequencies tested. An age sub-analysis demonstrated that TTS among younger adults were generally larger in the Sham therapy group versus Active therapy, though this was not statistically different. There were no differences in CPATB test results across Active or Sham groups. Finally, we observed no changes in auditory function or central processing following noise exposure, suggestive of healthy and resilient inner ears.ConclusionIn this study, locally administered NIR prior to noise exposure did not induce a significant protective effect in mitigating noise-induced TTS. Further exploration is needed to implement effective dosage and administration for this promising otoprotective therapy.

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Relationship Between Noise Annoyance and Cognitive Performance in Automotive Workers Exposed to Chronic Noise

Cited by 12 publications

References 33 publications

Napping and cognitive performance during night shifts: a systematic review and meta-analysis

Napping and cognitive performance during night shifts: a systematic review and meta-analysis

Study of the Relationship Between Hearing Loss and Cognitive Performance at Chronic Exposure to Noise

Examining the utility of near infrared light as pre-exposure therapy to mitigate temporary noise-induced hearing loss in humans

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