[Eeglablist] Saccades from EOG data

[David Groppe]

Hi Scott,
   The following paper might be of use to you:

Tracking eye fixations with electroocular and electroencephalographic recordings
Joyce CA, Gorodnitsky IF, King JW, Kutas M
Source: PSYCHOPHYSIOLOGY    Volume: 39    Issue: 5    Pages: 607-618
 Published: SEP 2002

Abstract: We describe a method, based on recordings of the
electroencephalogram (EEG) and eye movement potentials
(electrooculogram), to track where on a screen (x,y coordinates) an
individual is fixating. The method makes use of an empirically derived
beam-forming filter (derived from a sequence of calibrated eye
movements) to isolate eye motion from other electrophysiological and
ambient electrical signals. Electrophysiological researchers may find
this method a simple and inexpensive means of tracking eye movements
and a useful complement to scalp recordings in studies of cognitive
phenomena. The resolution is comparable to that of many commercial
systems; the method can be implemented with as few as four electrodes
around the eyes to complement the EEG electrodes already in use. This
method may also find some specialized applications such as studying
eye movements during sleep and in human-machine interfaces that make
use of gaze information.

-D


On Mon, Jun 27, 2011 at 6:15 PM, Scott Munro <phaddie at gmail.com> wrote:
> Hello,
>   We have a set of EOG data extracted from a CTF MEG scanner.  We are hoping
> to isolate the horizontal direction of saccades and their timing.  I am very
> new to EEGlab and to EEG type data in general.  I am actually not sure even
> where to begin.  I have found some criteria in literature but not sure how
> to implement it.  I also suspect I may need to use ICA, but as of yet I have
> not been able to determine how to achieve our goal using ICA.
>   Any help or guidance in the right direction would be helpful.
>     Scott Munro
>     Department of Cognitive Science
>     York University
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-- 
David Groppe, Ph.D.
Postdoctoral Researcher
Kutaslab
Dept. of Cognitive Science
University of California, San Diego
http://www.cogsci.ucsd.edu/~dgroppe/