>I would appreciate any info/pointers/websites to publications
>/research reports/projects etc. on the study of electromagnetic
>fields generated by brain.
>>Some questions i am interested in finding answers for are
>. what is the strength (amplitude) and frequency of the fields
>. what measurement techniques have people been using to study them
>. Is there any correlation of the field patterns to any cognitive
> processes/ailments ?
>. what are the effects of EM fields of various strengths and frequencies
> on the brain function
>>any illumination on the above topics will be welcome.
>
You may do a search on the WWW for magnetoencephalography (MEG), which is the
use of SQUID's to measure magnetic fields originating from the brain. The
strength and frequency of these signals vary strongly with the measure desired.
For example, a human auditory evoked field (AEF) may be as strong as 600 fT
with a frequency response centered at 10 Hz.
More information may be obtained through library literature searches on MEG,
and also (perhaps) via WWW searches.
Bryan A. Mjaanes
University of Wisconsin Biomagnetism Research Laboratory
