The Effect Of Apparent Motion On The Performance Of A Visual Speller
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2018-07-18
Language
en
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Abstract
The invention of brain computer interfaces makes way for a new method of communication,
as information about a person's internal state can be communicated without the use of their
peripheral nervous system. This is often established by means of a visual speller. These spellers
show a visual keyboard in which each letter
ickers in a speci c frequency or pattern to elicit a
distinct brain signal. It is not uncommon to have two (or more) adjacent tiles
icker just after
each other, resulting in an apparent motion. Do these motions have an in
uence on the speller's
performance? An EEG experiment was performed to investigate the apparent motion in such
a speller. The performance of ve participants on two di erent spellers was measured. One
containing an obvious circular motion and one baseline speller. Four out of ve participants
performed better on the speller containing the circular motion. The di erence in performance
was however not signi cant.
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Faculteit der Sociale Wetenschappen