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Published on: February 19, 2018
The influence of a moving object's location on object identity judgments
Mengxin Ran1, Zitong Lu1, Julie D Golomb1
1Department of Psychology, Ohio State University.
Summary
Object identity judgments are influenced by location, especially when objects move. The "same exact" trajectory strongly biases perception, while predictable paths show weaker effects, suggesting continuous motion incorporates more ecological information.
Area of Science:
- Cognitive Psychology
- Neuroscience
- Visual Perception
Background:
- Object recognition integrates
- what
- and
- where
- information.
- Location influences object identity judgments, even when irrelevant.
- Spatial congruency bias (SCB) occurs with stationary objects in the same location.
Purpose of the Study:
- Investigate how moving object trajectories affect identity judgments.
- Examine effects during fixation and across eye movements.
- Bridge gaps between stationary and moving object paradigms.
Main Methods:
- Two experiments using sequential object presentations with varying trajectories.
- Experiment 1: Judgments during fixation with predictable, same exact, or different trajectories.
- Experiment 2: Judgments across saccades (eye movements) in retinotopic and spatiotopic coordinates.
Main Results:
- Strongest sensitivity and SCB for "same exact" trajectories.
- Significant SCB for predictable trajectories.
- SCB primarily retinotopic after object and eye movements, with weaker spatiotopic effects.
Conclusions:
- Object-location binding is predominantly retinotopic following object and eye movements.
- Moving objects' continuous trajectories may incorporate more ecologically relevant information.
- Spatial information significantly impacts object identity perception during motion.
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