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Shift work in healthcare professionals may enhance auditory-cognitive processing and visuospatial/executive functions. These findings suggest potential adaptive mechanisms in shift workers (SW) compared to fixed-schedule workers (FSW).

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Area of Science:

  • Auditory cognitive neuroscience
  • Occupational health psychology
  • Human factors engineering

Background:

  • Shift work is prevalent among healthcare professionals, impacting cognitive performance, particularly in complex environments.
  • The potential benefits of complex work environments on auditory-cognitive processing in shift workers are not well understood.
  • Factors like noise and sleep disruption in shift work may drive adaptive changes in auditory-cognitive resources.

Purpose of the Study:

  • To investigate the relationship between shift work and auditory-cognitive processing in middle-aged healthcare workers.
  • To explore potential compensatory mechanisms developed by healthcare professionals engaged in shift work.
  • To determine if specific auditory-cognitive patterns are associated with shift work schedules.

Main Methods:

  • A comparative study involving 30 middle-aged healthcare workers divided into shift worker (SW) and fixed-schedule worker (FSW) groups.
  • Assessment of cognitive functions using a standardized cognitive test (MoCA).
  • Evaluation of auditory processing through pure-tone audiometry, speech perception in quiet and noise, and listening effort tests.

Main Results:

  • Shift workers demonstrated superior performance in visuospatial/executive function, memory recall, memory index, orientation, and overall MoCA scores compared to fixed-schedule workers.
  • In shift workers, hearing thresholds correlated with memory recall and memory index.
  • In fixed-schedule workers, hearing thresholds correlated with orientation, memory index, and total MoCA score; listening effort correlated with naming, and speech intelligibility in quiet correlated with total MoCA scores.

Conclusions:

  • Shift work appears associated with distinct auditory-cognitive profiles in healthcare workers, potentially indicating adaptive changes.
  • Exploratory findings suggest compensatory mechanisms in visuospatial/executive functions and memory among shift workers.
  • Further large-scale, longitudinal research is necessary to validate these adaptive mechanisms in shift work environments.