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Making MR Imaging Child's Play - Pediatric Neuroimaging Protocol, Guidelines and Procedure
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Noise and brain.

Archana Arjunan1, Ravindran Rajan1

  • 1Department of Physiology, Dr. Arcot Lakshmanaswami Mudaliar Post Graduate Institute of Basic Medical Sciences, University of Madras, Taramani Campus, Chennai - 600 113, India.

Physiology & Behavior
|August 18, 2020
PubMed
Summary

Excessive noise exposure negatively impacts brain health, affecting cognition, neurochemistry, and brain structure. This review explores noise-induced stress on the central nervous system and its health implications.

Keywords:
AntioxidantsCognitionEpigeneticsNeurotransmitterNoiseStress

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Area of Science:

  • Neuroscience
  • Environmental Health
  • Toxicology

Background:

  • Urbanization and lifestyle changes have increased environmental noise exposure.
  • Noise pollution affects not only auditory functions but also non-auditory systems, including the central nervous system (CNS).
  • Growing evidence links noise exposure to detrimental health outcomes.

Purpose of the Study:

  • To review current research on the effects of noise on the brain.
  • To highlight the impact of noise on CNS health and related physiological systems.
  • To synthesize findings on noise-induced neurobehavioral, molecular, and structural changes in the brain.

Main Methods:

  • Comprehensive literature review of studies investigating noise and brain health.
  • Analysis of research focusing on neurobehavioral impairments, oxidative stress, neurotransmitter alterations, molecular mechanisms, brain morphology, and epigenetic modifications.
  • Inclusion of evidence from both animal and human models.

Main Results:

  • Noise exposure impairs cognition and neurobehavior.
  • Specific brain areas are vulnerable to noise-induced oxidative stress.
  • Alterations in neurotransmitter levels and molecular pathways are observed.
  • Noise can lead to morphological deterioration of brain structures and epigenetic changes.

Conclusions:

  • Noise pollution poses a significant threat to brain health beyond auditory effects.
  • Understanding noise-induced CNS effects is crucial for public health strategies.
  • Further research is needed to fully elucidate the mechanisms and long-term consequences of noise exposure on the brain.