A mathematical model and experimental procedure to analyze the cognitive effects of audio frequency magnetic fields

Authors: Navarro EA, Navarro-Modesto E

Year: 2023 May 12

Category: Neuroscience

Journal: Front Hum Neurosci

Institution: Front Hum Neurosci

DOI: 10.3389/fnhum.2023.1135511

URL: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10218710/

Abstract

Overview

Audio frequency magnetic fields (20 Hz-20 kHz), found near audio equipment and acoustic transducers, are investigated for their cognitive effects in this study.

Findings

  • The cognitive influence of these magnetic fields, particularly near temporal-parietal areas, is studied using a newly developed mathematical model and experimental setup.
  • The experimental group utilized in this research consists of 65 young, healthy subjects.
  • Memory performance is analyzed using the Sternberg test, wherein some subjects received a magnetic stimulus, while others received a sham.
  • Observed effects indicate potential cognitive impairment, with notable delays in memory search processes.

Conclusion

Exposure to these magnetic fields might significantly impair cognitive functions such as memory, potentially due to biophysical mechanisms like eddy currents or tissue micro heating. This underlines the importance of assessing and mitigating EMF risks, especially in environments where such devices are prevalent.

audio frequency magnetic fields cognitive effects memory performance transcranial magnetic stimulation Sternberg test
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