By Topic

1/f fluctuations in biological systems

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Musha, T. ; Brain Function Lab., Teikyo Heisei Univ., Sakado, Japan ; Yamamoto, Mitsuaki

The present author makes a review of different types of 1/f fluctuations which have been observed in various levels of biological body. Judging from these observations it seems that the biological rhythm is basically subject to 1/f fluctuations from cellular to behavioral levels. There are three possible generation mechanisms of 1/f-like rhythm fluctuations. Firstly, 1/f ionic conductance fluctuations of a cellular membrane would modulate ion current flowing into a biological cell which would modulate discharge intervals of the neuron. Secondly, a Hopfield-type of artificial neural network consisting of neurons, each of which has binary states 0 and 1 and has connections with all other neurons, show 1/f level fluctuations when random noise is given to each neuron with a proper inhibitory threshold. Thirdly, we mention the clustering Poisson process in which sequences of randomly occurring point events (clusters) overlap each other. As regards biological phenomena, we often ask “How?” and “Why?”. The question of “Why?” is still unsolved. 1/f fluctuations were first found in electronic devices, and now they are ubiquitous in nature

Published in:

Engineering in Medicine and Biology Society, 1997. Proceedings of the 19th Annual International Conference of the IEEE  (Volume:6 )

Date of Conference:

30 Oct-2 Nov 1997