Time course of amodal completion in face perception.
The visual system often automatically perceives partially occluded objects as whole and complete. This phenomenon is called amodal completion, but its mechanism is not fully understood. In the first experiment, we measured the psychophysical time course of face amodal completion using a performance-based method and found the amodal completion took place between 100 and 300 ms after stimulus onset. In the second experiment, we found the amodal completion could modulate event-related potentials (ERPs) in the same time range. These results provide further evidence regarding the representational development of occluded faces from local facial features to a coherent face.
Chen
Juan
J
Department of Psychology and Key Laboratory of Machine Perception, Ministry of Education, Peking University, 5 Yiheyuan Road, Beijing 100871, PR China.
Liu
Bingyun
B
Chen
Bing
B
Fang
Fang
F
D000328:Adult; D004569:Electroencephalography; D005071:Evoked Potentials / Q000502:physiology; D005145:Face; D005260:Female; D006801:Humans; D008297:Male; D010364:Pattern Recognition, Visual / Q000502:physiology*; D010466:Perceptual Closure / Q000502:physiology*; D010470:Perceptual Masking / Q000502:physiology; D010775:Photic Stimulation / Q000379:methods; D011601:Psychophysics; D055815:Young Adult