Priming effects between two-dimensional shapes.
Priming effects between two-dimensional shapes.
复制标题
二维形状之间的启动效应。
DOI：
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发表时间：
1988
期刊：
影响因子：
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通讯作者：
P. Quinlan
中科院分区：
文献类型：
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作者：
G. Humphreys;P. Quinlan
通过考察二维形状之间的启动效应，考察了参照框架在形状知觉中的作用。使用模糊形状和具有明确轴的形状，并且可以在方向上转换素数和目标，使得对于模糊形状，不同的轴与垂直对齐。可靠的启动效应，建立了依赖于结构相似性的启动和目标，信息的启动，和刺激之间的间隔。最有趣的是，与短的刺激间隔，差异启动效应之间的模糊形状和明确的形状时，一个取向变换对齐不同的轴在模糊的形状与垂直。这一结果被解释为启动是由启动和目标的框架描述的相似性决定的。这一发现发生在不考虑信息量的启动，这表明它反映了强制性的过程中的形状感知。进一步的数据表明，在某些情况下，预先指定形状的方向也有助于其处理;这提供了直接证据，表明形状是相对于感知参考框架来表示的。
The role of reference frames in shape perception was examined by investigating priming effects between two-dimensional shapes. Ambiguous shapes and shapes with an unambiguous axis were used, and primes and targets could be orientationally transformed so that for ambiguous shapes, different axes aligned with the vertical. Reliable priming effects were established that were dependent on the structural similarity of primes and targets, the informativeness of the prime, and the interval between the stimuli. Most interestingly, with short interstimulus intervals, differential priming effects were found between ambiguous shapes and unambiguous shapes when an orientational transformation aligned different axes in the ambiguous shape with the vertical. The result was interpreted as demonstrating that priming was determined by the similarity of the frame-based descriptions of primes and targets. The finding occurred irrespective of the informativeness of the prime, suggesting that it reflects obligatory processes in shape perception. Further data showed that under some circumstances prespecifying the orientation of a shape also facilitated its processing; this provided direct evidence that shapes are represented relative to a perceptual reference frame.