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Biological Signals Acquisition |
EOG tests > Pursuit
without target |
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Here the subject will
attempt to generate smooth eye movements
while shifting his/her gaze between two
stationary targets. |
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Procedure
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| The sweep duration is
set to 10 seconds, and the subject is
told to sit 12 inches from the computer
monitor. The "pursuit without
target" option is chosen, and the
subject attempts to generate smooth eye
movements while moving the eyes from one
stationary object to the other. |
| Stationary
Targets
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Results:
Pursuit without targets |
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Comments: The results are
markedly different from those of
horizontal smooth pursuit. Instead of a
smooth triangular wave, a square wave is
seen, reflecting the saccadic eye
movement from one target to the other.
Thus we observe that it is impossible for
the eyes to perform smooth pursuit
without a moving target. |
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