Using wavelet analysis to detect the influence of low frequency magnetic fields on human physiological tremor

Physiol Meas. 2007 Mar;28(3):321-33. doi: 10.1088/0967-3334/28/3/007. Epub 2007 Feb 23.


The influence of extremely low frequency magnetic fields (ELF-MFs) on human physiological processes and, in particular, on motor activity is still not established with certainty. Using the wavelet-transform approach, changes in the characteristics of human finger micromovement are studied in the presence of a low intensity MF centred at the level of the head. Different approaches to nonstationary signal analysis involving real as well as complex wavelet functions are considered. We find evidence that ELF-MFs lead to more regular postural tremor and more homogeneous energy distribution.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Electromagnetic Fields*
  • Fingers / radiation effects*
  • Humans
  • Male
  • Middle Aged
  • Models, Biological
  • Motor Activity / radiation effects*
  • Tremor / physiopathology*