Different time courses for visual perception and action priming
Different time courses for visual perception and action priming
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DOI：
10.1073/pnas.0931489100
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发表时间：
2003-05-13
影响因子：
11.1
通讯作者：
Schwarzbach, J
中科院分区：
文献类型：
--
作者：
Vorberg, D;Mattler, U;Schwarzbach, J
视觉刺激可能仍然是不可见的，但仍然对随后的行动产生强烈和可靠的影响。一个被掩蔽的素数的特征被感知的程度关键取决于它的物理参数和掩模的物理参数。我们操纵了掩蔽刺激的可见性，并将其与它们对运动动作速度的影响进行了对比，比较了相同条件下元对比掩蔽与动作启动中视觉意识的时间动态。我们观察到启动与相同的时间进程可报告的和不可见的刺激，尽管掩蔽的时间过程中发生了质的变化。我们的研究结果表明，实验的变化，修改掩蔽刺激的主观视觉体验没有影响这些刺激的运动效应在早期处理。我们提出了一个模型，提供了一个定量的启动反应速度和准确性的影响。
Visual stimuli may remain invisible but nevertheless produce strong and reliable effects on subsequent actions. How well features of a masked prime are perceived depends crucially on its physical parameters and those of the mask. We manipulated the visibility of masked stimuli and contrasted it with their influence on the speed of motor actions, comparing the temporal dynamics of visual awareness in metacontrast masking with that of action priming under the same conditions. We observed priming with identical time course for reportable and invisible prime stimuli, despite qualitative changes in the masking time course. Our findings indicate that experimental variations that modify the subjective visual experience of masked stimuli have no effect on motor effects of those stimuli in early processing. We propose a model that provides a quantitative account of priming effects on response speed and accuracy.