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The oculography is a well known method for assessment of eye
movement reactions. However, no systems have been developed at
present for registration of eye movement on the basis of
oculography, which could be practically used, in particular, in
control systems. It could be possibly explained by the absence
of simple and accurate algorithms of treatment of changes in the
oculographic potential.
The modelling of projections of dipole of eyes during their
movements for possible ways of removing made it possible for us
to create an oculographic system with the use of multichannel
amplifier of direct current (made by an engineer Antoshkin B.N.),
which reflects eye movement in a computer screen in the regime
of real time. To analyse the oculographic porential, an
algorithm of treatment of the potential simultaneously from some
(from 2 up to 4) removings was used. The origical localization
of removed electrodes combined with the use of algoriths of
treatment could provide a comprehensive information of tracing
and convergent-divergent movement of eyes.
Fig 1 shows a trajectory of concomitant eye movement restored
by the oculographic potential registered simultaneously from two
removings. A person tested changed over its glance from the
point of fixation in the centre of the field of version to
different directions of 10 ° and back. It is possible to
restore the movement of each eye particular by the use of 4th
removings.
The system developed can be used for diagnostics of
functional states , pathologies in eye-movement system, as well
as in control devices. In particular we have obtained the first
positive results of the control with the help of eye movement of
the position of a mouse marker on a computer screen.
You can get acquainted in details with the system in the
Physiology Department of the Irkutsk State University.
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Fig. 1. A trajectory of eye movement restored by the
oculogram.
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If you are interested in my system developed you can contact
me by the office address:
Irkutsk State Universuty Biology and Soil Faculty Physiology
Department Sukhe-Bator street, 5 Irkutsk 664003 Russia
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