Dimensions of figural identity and apparent motion

Area of Science:

• Cognitive Psychology
• Visual Perception

Background:

• Warren's theory proposed object identifiability is crucial for apparent motion between disparate shapes.
• This conflicts with Kolers and Pomerantz's findings of motion perception with non-identifiable shapes.

Purpose of the Study:

• To investigate the discrepancy in apparent motion perception between disparate shapes.
• To re-evaluate the role of ecological transformability and introduce featural similarity as factors.

Main Methods:

• Replication of Warren's experiment using his figures.
• Inclusion of subjective ratings for motion smoothness and motion type, alongside object identification.

Main Results:

• Frequent reports of apparent motion for disparate, non-transformable figures were obtained.
• Both shape transformability and featural similarity were found to influence the type and smoothness of illusory motion.

Conclusions:

• The perception of apparent motion is influenced by factors beyond simple object identifiability.
• Featural similarity plays a significant role in modulating the characteristics of illusory motion.