Inferring the direction of implied motion depends on visual awareness

被引:26
作者
Faivre, Nathan [1 ]
Koch, Christof [1 ,2 ]
机构
[1] CALTECH, Pasadena, CA 91125 USA
[2] Allen Inst Brain Sci, Seattle, WA USA
来源
JOURNAL OF VISION | 2014年 / 14卷 / 04期
关键词
awareness; consciousness; implied motion; continuous flash suppression; priming; COGNITIVE NEUROSCIENCE; APPARENT MOTION; LOW-LEVEL; ADAPTATION; CONSCIOUSNESS; PERCEPTION; INFORMATION; SPECIFICITY; ACTIVATION; MASKING;
D O I
10.1167/14.4.4
中图分类号
R77 [眼科学];
学科分类号
100212 ;
摘要
Visual awareness of an event, object, or scene is, by essence, an integrated experience, whereby different visual features composing an object (e.g., orientation, color, shape) appear as an unified percept and are processed as a whole. Here, we tested in human observers whether perceptual integration of static motion cues depends on awareness by measuring the capacity to infer the direction of motion implied by a static visible or invisible image under continuous flash suppression. Using measures of directional adaptation, we found that visible but not invisible implied motion adaptors biased the perception of real motion probes. In a control experiment, we found that invisible adaptors implying motion primed the perception of subsequent probes when they were identical (i.e., repetition priming), but not when they only shared the same direction (i.e., direction priming). Furthermore, using a model of visual processing, we argue that repetition priming effects are likely to arise as early as in the primary visual cortex. We conclude that although invisible images implying motion undergo some form of nonconscious processing, visual awareness is necessary to make inferences about motion direction.
引用
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页数:14
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