[esnr] Re: abst eeg global changes
- From: "Batty, Martin" <m.batty@xxxxxxxxxxxxxx>
- To: <esnr@xxxxxxxxxxxxx>
- Date: Mon, 18 Oct 2004 12:31:01 +0100
Hi Marco
If you have it as a pdf any chance you could mail me a copy? I'd be interested
to read it regardless
Best, Martin
-----Original Message-----
From: esnr-bounce@xxxxxxxxxxxxx on behalf of Marco Congedo
Sent: Mon 10/18/2004 12:00 PM
To: esnr@xxxxxxxxxxxxx
Cc:
Subject: [esnr] Re: abst eeg global changes
I read it months ago. It is not that good as the title promises....(my opinion).
Marco
JefCrotty@xxxxxx wrote:
IEEE Trans Neural Syst Rehabil Eng. 2003 Jun;11(2):133-7.
EEG changes accompanying learned regulation of 12-Hz EEG activity.
Delorme A, Makeig S.
Swartz Center for Computational Neuroscience, Institute for Neural Computation,
University of California at San Diego, La Jolla 92093-0961, USA. arno@xxxxxxxx
We analyzed 15 sessions of 64-channel electroencephalographic (EEG) data
recorded from a highly trained subject during sessions in which he attempted to
regulate power at 12 Hz over his left- and right-central scalp to control the
altitude of a cursor moving toward target boxes placed at the top-, middle-, or
bottom-right of a computer screen. We used infomax independent component
analysis (ICA) to decompose 64-channel EEG data from trials in which the
subject successfully up- or down-regulated the measured EEG signals. Applying
time-frequency analysis to the time courses of activity of several of the
resulting 64 independent EEG components revealed that successful regulation of
the measured activity was accompanied by extensive, asymmetrical changes in
power and coherence, at both nearby and distant frequencies, in several parts
of cortex. A more complete understanding of these phenomena could help to
explain the nature and locus of learned regulation of EEG rhythms and migh
t also
suggest ways to further optimize the performance of brain-computer interfaces.
Marco Congedo, PhD
-------------------------------
National Institute for Research in Informatics and Automated Systems
INRIA-Grenoble-France
Tel: +33 4 76615409
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