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Mindwaves.

Richard S. Norman rnorman at umich.edu
Sun Mar 17 23:13:14 EST 2002


On Mon, 18 Mar 2002 02:59:44 -0000, "Ian Field" <i.field at virgin.net>
wrote:

>
>"Richard S. Norman" <rnorman at umich.edu> wrote in message
>news:46v99ugm15varo3m652e2cilsltjujds7v at 4ax.com...
>> >Note: This is my (R Norman) impression of a partial history of this
>thread:
>> >
>> >Query by Ian Field
>> >  Please could anyone suggest keywords to use for searching for
>> >  newsgroups or any other resources) dealing with brainwaves (0.5 -
>> >  20Hz)
>> >
>> >Resonse by Richard Norman
>> >    Try "electroencephalogram" or "EEG".
>> >
>> >Response by Bob Nienhuis
>> >   Brainwaves are frequently referred to as spectral bands, eg; alpha,
>> >  beta, delta, theta etc.
>> >
>> >Query by Ian Field
>> >   Thanks - but I was already aware of that, although since you
>> >    mention them I suppose I could type them into the newsgroup
>> >   searchbox and see what happens
>> >
>> >Response by Richard Norman
>> >    Don't search newsgroups.  Search www.google.com for internet
>> >    sites or www.ncbi.nlm.nih.gov/pubmed for research literature.
>> >
>> >Query by Ian Field
>> >   Did any of your results contain any significant resource on the
>> >   0.5 - 20Hz "slow-wave" band of frequencies?
>>
>> You don't seem to understand. The whole idea of electrical signals
>> in the range 0.5 to 20 Hz recorded from the surface of the brain (or
>> the scalp) is call "electroencephalogram".  The alpha, beta, delta,
>> and theta bands are subdivisions within this spectrum:  The delta
>> waves are generally 0 to 4 Hz, the theta are 4 to 7 Hz, the alpha
>> are 8 to 13 Hz and the beta are 13 to 40 Hz (more or less).
>>
>> If you search for "electroencephalogram alpha" or "EEG delta"
>> you will get references for what you want.  But again, don't search
>> newsgroups.  Either search the "internet" using google (or whatever
>> search strategy you like) or search the scientific literature using
>> Pubmed (or whatever search strategy you like).
>>
>Been there - done that, I understand just fine - Copernic2000 queries about
>a dozen of the best known web hosted engines simultaneously - what I seek
>seems to be a closely guarded secret!!!!!
>

It certainly is.  Nobody can figure out exactly what it is that you
want to find. 




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