Motion capture depends upon the common fate factor among elements

What is it about?

This study found that, in viewing stimulus that includes moving parts and static components, the existences of the common fate factor for the entire components determines whether observers would see the static components move with the direction same as or opposite to the moving components.

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Why is it important?

In viewing the stimulus with moving and static components, observer would see the static components move with the direction same as or opposite to the moving components. The first illusory motion is called as “motion capture” while the second one is called as “induced motion”. Although both of them have been well known as illusory motion, no study have identified the factor which determines which of them observe would obtain in viewing stimulus with moving and static components. This study is the first one which demonstrated that the existence of the common fate factor for the moving and static components determines whether observer would see the motion capture or induced motion for the static components.

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