The Visual Priming of Motion-Defined 3D Objects

The perception of a stimulus can be influenced by previous perceptual experience, a phenomenon known as perceptual priming. However, there has been limited investigation on perceptual priming of shape perception of three-dimensional object structures defined by moving dots. Here we examined the perc...

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Bibliographic Details
Published in:PloS one 2015-12, Vol.10 (12), p.e0144730-e0144730
Main Authors: Jiang, Xiong, Jiang, Yang, Parasuraman, Raja
Format: Article
Language:English
Subjects:
Adolescent
Adult
Brain
Computer applications
Depth perception
Depth Perception - physiology
Experiments
Humans
Motion detection
Motion perception
Motion Perception - physiology
Neurosciences
Noise
Object motion
Perception
Perceptions
Photic Stimulation
Priming
Priming (Psychology)
Psychological research
Repetition Priming - physiology
Studies
Three dimensional motion
Visual perception
Visual stimuli
Young Adult
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Summary:The perception of a stimulus can be influenced by previous perceptual experience, a phenomenon known as perceptual priming. However, there has been limited investigation on perceptual priming of shape perception of three-dimensional object structures defined by moving dots. Here we examined the perceptual priming of a 3D object shape defined purely by motion-in-depth cues (i.e., Shape-From-Motion, SFM) using a classic prime-target paradigm. The results from the first two experiments revealed a significant increase in accuracy when a "cloudy" SFM stimulus (whose object structure was difficult to recognize due to the presence of strong noise) was preceded by an unambiguous SFM that clearly defined the same transparent 3D shape. In contrast, results from Experiment 3 revealed no change in accuracy when a "cloudy" SFM stimulus was preceded by a static shape or a semantic word that defined the same object shape. Instead, there was a significant decrease in accuracy when preceded by a static shape or a semantic word that defined a different object shape. These results suggested that the perception of a noisy SFM stimulus can be facilitated by a preceding unambiguous SFM stimulus--but not a static image or a semantic stimulus--that defined the same shape. The potential neural and computational mechanisms underlying the difference in priming are discussed.
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0144730