Entrained
Motion is Affected by the Number of Entraining Stimuli and Equality
in the Moving Distance of Stimuli
I. Watanabe |
Ten
undergraduate students took part in two experiments of entrained
motion, a type of apparent motion, in which a test stimulus (TS),
blinking alone, appears to move entrained by the apparent motion
of entraining stimuli (ESs) in the display. The subjects rated the
motion of the TS under conditions varying in the number of ESs and
the moving distances of the TS and ESs. The first experiment showed
that the rating of motion increased with the number of ESs. The second
experiment showed that the rating was larger when the moving distance
of the TS was equal to the distances of ESs than when not. The rating
was indifferent to either of the moving distances of the TS and ESs.
The results indicate that entrained motion is determined not only
by ESs but also by the spatial configuration of all the elements
in the display. Key words: visual apparent motion, entrained motion, spatial arrangement, distance |