In article <3hb1ji$h6q at satisfied.elf.com>, x at elf.com (Xochi Zen) wrote:
> Does anyone know the e-mail address of Dr. Gevins? I'm also looking
> for people who are specialists in EEG to ask a few questions of.
>alan at eeg.com
> One of my questions:
>> Is it true that certain psychological states have signature EEGs?
> Can we _determine_ specific psychological states via EEG?
>>Define what you mean by "psychological state". More aroused, alert states
tend to be characterised by smaller amplitude asynchronous waves (beta),
while relaxed or sleep states, except for dream sleep, are characterised
by large amplitude, low frequency waves (alpha, delta). In addition, the
stimulus or response locked average EEG, the event-related potential
(ERP), is sensitive to a large number of psychological parameters. This is
a very rudimentary description. There are several good books available on
human brain electrophysiology (a new one by Paul Nunez should be out any
day). If you have more specific questions, please ask and if I don't know
the answer I may be able to direct you to a source.
> Thanks,
>> Dana
--geoff
Geoffrey Potts
Brockton VAMC "I've got a chemical body
Psychiatry 116A and an electric brain"
940 Belmont St.
Brockton, MA 02401 -Country Joe and the Fish
